EP4646092A1

EP4646092A1 - A subsoil manure delivering tool

Info

Publication number: EP4646092A1
Application number: EP24711864.9A
Authority: EP
Inventors: Harry Højvang Sørensen
Original assignee: Harso Maskiner AS
Current assignee: Harso Maskiner AS
Priority date: 2024-03-13
Filing date: 2024-03-13
Publication date: 2025-11-12
Also published as: WO2025190480A1

Abstract

An agricultural tool (100) for supplying and distributing manure (2) below the surface (4) of soil (6) in an agricultural field is described. The tool comprises a delivery tube (12) for delivering manure to the soil, a wing element (18) for creating a downward acting force upon being moved through soil, a distributor plate (20) for distributing manure in a horizontally oriented direction upon directing manure thereto from a position above said distributor plate (20), wherein at least a portion (22) of the distributor plate (20) is being arranged below said second opening (16) of said delivery tube (12). A tool assembly (300) comprising one or more such tools (100) is also described as is an agricultural implement (400) comprising one or more of such tool assemblies.

Description

A subsoil manure delivering tool

Field of the invention

The present invention relates to the field of agriculture and in particular to equipment for delivering and distributing of manure in the soil of an agricultural field.

More specifically, the present invention relates in a first aspect to a tool for supplying and distributing manure below the surface of soil in an agricultural field.

In a second aspect the present invention relates to a tool assembly comprising a tool carrier in combination with one or more tools according to the first aspect of the present invention.

In a third aspect the present invention relates to an agricultural implement comprising a frame and a plurality of tool assemblies according to the second aspect of the present invention.

In a fourth aspect the present invention provides the use of a tool according the first aspect of the present invention for delivering manure in an agricultural field.

In a fifth aspect the present invention provides the use of a tool assembly according to the second aspect of the present invention for delivering manure in an agricultural field.

In a sixth aspect the present invention provides the use of an agricultural implement according to the third aspect of the present invention for delivering manure in an agricultural field.

In a seventh aspect the present invention provides a method for delivering and distributing manure in an agricultural field.

Background of the invention

For decades manure originating from livestock animals has been used as a fertilizer for spreading on agricultural fields. Besides providing necessary nutrients to the soil, such use of manure at the same time solves the problem of disposing off the rather huge amount of manure being collected in a livestock farm.

When the manure is used as a fertilizer prior to sowing seeds or planting plants in the agricultural field it has for many years been customary to spread the manure onto the surface of the soil of the agricultural field.

The spreading operation is performed by use of a vehicle carrying a manure tank. Booms stretching to the right and to the left sides in relation to and at the rear end of the vehicle comprises a plurality of evenly spaced nozzles which are provided with pressurized manure via a pump which pumps manure from the tank to each individual nozzle through hoses. When driving that vehicle over the agricultural field it is possible to spread manure in a width of 36 m or more. However, such spreading of untreated manure onto the surface of the soil involves the inevitable problems of spreading annoying odors originating from the ammonia being present in the manure, especially in respect of citizens living in close proximity to the fields where such manure is being spread.

In order to avoid or at least reduce the odor problems and/or in order to comply with national or local legislations/regulations which prohibits such spreading of manure directly onto the surface of the soil, farmers occasionally neutralize the ammonia in the manure by adding sulfuric acid.

Although such addition of sulfuric acid to the manure adds further nutrients to the manure in the form of sulphate ions, such additions of acid nevertheless involve further cost for the farmer in form of expenses for purchasing the acid and in the form of labor which will be involved in mixing the manure and the acid.

Another way of reducing the odor problems involved when spreading manure in an agricultural field is to make sure that the manure, while being spread, is being deposited in a trench in the soil of the agricultural field where that trench is being covered with soil immediately after delivery of the manure.

Accordingly, agricultural implements exist which comprises a pair of booms comprising a plurality of evenly spaced nozzles for delivery of manure as disclosed above, where this implement in respect of each nozzle additionally comprises a pair of vertically arranged shears that will cut a small trench in the soil into which the manure will be delivered by the nozzles. The implement additionally comprises a harrowing disc and compacting wheels which subsequently will cover the trench and smoothen out the soil surface left behind.

Another prior art subsoil manure delivering tool is similar to the one described above. However, instead of using vertically extending shears, this type utilizes a horizontally arranged wing shear which is moved through soil below the surface of the soil, and manure is accordingly delivered to the trench being dug by this horizontally arranged wing shear.

Although this solution somewhat effectively reduces the odor problems of ammonia, this type of implement nevertheless presents some disadvantages.

One of these disadvantages is that when manure is being delivered to the soil by being pumped at high pressure in a vertical direction directly into the soil, the manure being delivered by each nozzle tends to be deposited below the surface of the soil in a rather narrow and in a rather deep strip.

In order to utilize the manure having been spread this way, is desirably to subsequently plant the seed or seedling of the crop to be grown on the agricultural field at the exact precise position of the delivered manure, that is essentially at a position of the trench that has previously been dug and which comprises the delivered manure.

However, as the manure has been delivered by each nozzle in a rather narrow strip on the field, not much room for errors will be present as to the preferred position, in a lateral direction, of the seeds which will subsequent be sown, in case optimum utilization of the manure of that strip is to be provided to those seeds.

Another problem in using this prior art implement is that the manure delivered in each trench will have a rather large extension in a vertical direction in the soil and thereby a rather high column of stirred up soil and manure will form in the soil.

In case it is attempted to drive a tractor on soil to which manure has been delivered with the above type of prior art subsoil manure delivering tool, the manure will be subjected to pressure to an extent which results in the situation, that the manure will find its way to the surface of the soil, and thereby odors will be spread in the surrounding environment anyway.

Moreover, as some crop seed, such as corn (maize) and potatoes cannot withstand a too high concentration of manure in the first days of germination, it will also for this reason be necessary to await sowing seed corresponding to such crop types until a few days have passed subsequent to the delivery of the manure.

Accordingly, a need persists within the technology relating to manure delivery tools for subsoil delivery of manure in an agricultural field which will alleviate or even eliminate the above-described disadvantages of the prior art.

It is an objective of the present invention to provide technologies fulfilling this need.

Brief description of the invention

This objective is fulfilled according to the present invention in its various aspects.

Accordingly, the present invention relates in a first aspect to a tool for supplying and distributing manure below the surface of soil in an agricultural field, wherein said tool in the orientation intended during use is having a leading portion and a trailing portion, wherein the direction from said trailing portion to said leading portion is defining a longitudinal direction X of said tool, and wherein a transversal direction Y of said tool is being defined as a lateral direction perpendicular to said longitudinal direction X; wherein said tool comprises:

-a delivery tube for delivering manure to the soil, said delivery tube comprises a first opening for receiving manure and an opposite, second opening for expelling manure from said delivery tube, wherein said first opening is being arranged above said second opening;

- a wing element for creating a downward acting force upon being moved through soil;

- a distributor plate for distributing manure in a horizontally oriented direction upon directing manure thereto from a position above said distributor plate; wherein at least a portion of said distributor plate is being arranged below said second opening of said delivery tube.

In a second aspect the present invention relates to a tool assembly comprising a tool carrier in combination with one or more tools according to the first aspect of the present invention, wherein said one or more tools is/are being arranged on said tool carrier, said tool assembly additionally comprises one or more support wheels or rollers which is/are being arranged on said tool carrier so as to be able to freely rotate.

In a third aspect the present invention relates to an agricultural implement for spreading manure in an agricultural field, wherein said implement comprises a frame and a plurality of tool assemblies according to the first aspect of the present invention, wherein said tool assemblies are being mounted on said frame.

In a fourth aspect the present invention provides the use of a tool according to the first aspect of the present invention for delivering of manure in an agricultural field.

In a fifth aspect the present invention provides the use of a tool assembly according to the second aspect of the present invention for delivering of manure in an agricultural field.

In a sixth aspect the present invention provides the use of an agricultural implement according to the third aspect of the present invention for delivering of manure in an agricultural field.

In a seventh aspect the present invention provides a method for delivering and distributing manure below soil level in an agricultural field, said method comprising the steps of: i) proving one or more tools according to the first aspect of the present invention; ii) delivering manure to the first opening of said delivery tube, and iii) moving one or more of said one or more tools through the soil of said agricultural field in such a way that said wing element of said tool is being submerged in soil, thereby making said tool provide sub-soil delivery of manure to said agricultural field.

Brief description of the figures

Fig. l is a perspective view illustrating a tool according to the first aspect of the present invention as seen in an upper front view.

Fig. 2 is a perspective view illustrating a tool according to the first aspect of the present invention as seen in an upper rear view.

Fig. 3 is a front view illustrating a tool according to the first aspect of the present invention as illustrated in Fig. 1 and 2.

Fig. 4 is a cross-sectional side view illustrating a tool according to the first aspect of the present invention.

Fig. 5 is a plan top view illustrating a tool according to the first aspect of the present invention. Fig. 6a is a perspective view illustrating an embodiment of a tool according to the first aspect of the present invention as seen in a lower front view.

Fig. 6b is a plan bottom view illustrating the tool of Fig. 6a.

Fig. 7a is a cross-sectional depiction of the distribution of manure in soil when using a prior art subsoil manure delivering tool.

Fig. 7b is a cross-sectional depiction of the distribution of manure in soil when using the manure delivering tool according the first aspect of the present invention.

Fig. 8 is a perspective view illustrating a tool assembly according to the second aspect of the present invention as seen in an upper front view.

Fig. 9 is a perspective view illustrating a tool assembly according to the second aspect of the present invention as seen in an upside-down view.

Fig. 10a is a side view illustrating a tool assembly according to the second aspect of the present invention.

Fig. 10b is a cross-sectional view illustrating the tool assembly illustrated in Fig. 10a.

Fig. 11 is a close-up cross-sectional view illustrating part of the tool assembly illustrated in

Fig. 10b.

Fig. 12a is plan front view illustrating an agricultural implement according to the third aspect of the present invention in its working configuration.

Fig. 12b is a top view illustrating an agricultural implement of Fig. 12a.

Fig. 12c is a perspective view illustrating an agricultural implement of Fig. 12a and 12b.

Fig. 13a is plan front view illustrating the agricultural implement of Fig. 12a in its transport configuration.

Fig. 13b is a side view of the embodiment illustrated in Fig. 13a.

Fig. 13c is a perspective view illustrating an agricultural implement of Fig. 13a and 13b.

Fig. 14a is side view illustrating a middle section of an agricultural implement according to the third aspect of the present invention with its tool assemblies in a lowered position.

Fig. 14b is a rear view illustrating the middle section of the agricultural implement of Fig. 14a.

Fig. 14c is a perspective view illustrating the middle section of the agricultural implement of Fig. 14a and 14b.

Fig. 15a is side view illustrating a middle section of an agricultural implement according to the third aspect of the present invention with its tool assemblies in a raised position. Fig. 15b is a rear view illustrating the middle section of the agricultural implement of Fig. 15a.

Fig. 15c is a perspective view illustrating the middle section of the agricultural implement of Fig. 15a and 15b.

Fig. 16a - Fig. 16j are schematic illustrations, illustrating various topologies in relation to different combinations, in a tool assembly according to the second aspect of the present invention, of number and positions of tools and number and positions of support wheels or rollers.

Fig. 17 is a perspective view illustrating a tool according to the first aspect of the present invention as seen in an upper front view and having an alternative design.

Fig. 18 is a perspective view illustrating the tool of Fig. 17 as seen in an upper rear view.

Fig. 19 is a front view illustrating the tool of Fig. 17.

Fig. 20 is a cross-sectional side view illustrating a tool of Fig. 17.

Fig. 21 is a top plan view illustrating tool of Fig. 17.

Fig. 22 is a perspective view of the tool of Fig. 17 as seen in a lower front view.

Fig. 23 is bottom plan view illustrating the tool of Fig. 17.

Fig. 24 is a perspective view illustrating a tool according to the first aspect of the present and comprising exchangeable wearing parts.

Fig. 25 is a perspective view illustrating a tool assembly according to the second aspect of the present invention as seen in an upper front view and comprising the tool illustrated in Fig. 17.

Fig. 26 is a perspective view illustrating the tool assembly of Fig. 25 as seen in an upsidedown view.

Fig. 27 is a side view illustrating the tool assembly of Fig. 25.

Fig. 28 is a cross-sectional view illustrating the tool assembly of Fig. 25.

Fig. 29 is side view illustrating a section of an agricultural implement according to the third aspect of the present invention with a tool assembly of Fig. 25 in a raised transportation position.

Fig. 30 is side view of the agricultural implement of Fig. 29 in a lowered, working position.

Fig. 31 is a perspective view illustrating the tool of Fig. 2 as seen in an upper front view, however in an embodiment in which the distributor plate is omitted.

Fig. 32 is a perspective view illustrating the tool of Fig. 18 as seen in an upper rear view, however in an embodiment in which the distributor plate is omitted. Detailed description of the invention

The first aspect of the present invention

The present invention relates in a first aspect to a tool 100 for supplying and distributing manure 2 below the surface 4 of soil 6 in an agricultural field, wherein said tool in the orientation intended during use is having a leading portion 8 and a trailing portion 10, wherein the direction from said trailing portion to said leading portion is defining a longitudinal direction X of said tool, and wherein a transversal direction Y of said tool is being defined as a lateral direction perpendicular to said longitudinal direction X; wherein said tool comprises:

-a delivery tube 12 for delivering manure to the soil, said delivery tube comprises a first opening 14 for receiving manure and an opposite, second opening 16 for expelling manure from said delivery tube, wherein said first opening 14 is being arranged above said second opening 16;

- a wing element 18 for creating a downward acting force upon being moved through soil;

- a distributor plate 20 for distributing manure in a horizontally oriented direction upon directing manure thereto from a position above said distributor plate 20; wherein at least a portion 22 of said distributor plate 20 is being arranged below said second opening 16 of said delivery tube 12.

By providing a distributor plate 20 in the tool it can be assured that the manure being delivered to the delivery tube 12 exits the second opening 16 of that manure delivery tube and hits that distributor plate 20, and thereby the movement direction of the manure will be diverted in a horizontal direction below the level of the surface of the soil which in turn implies that the manure being delivered to the soil will be delivered in a relative broad and shallow strip, compared to the prior art subsoil manure delivery tool which does not comprise a distributor plate, thus leading to a relative narrow and deep strip of delivered manure. In the tool the various elements thereof are preferably made from a metal or an alloy, such as steel and are connected to each other, such as by welding.

The direction of movement is preferably chosen in such a way that it is parallel to the distributor plate.

In the present description and in the appended claims the term “subsoil” shall be construed to mean below the surface of the soil.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is having an orientation in relation to said distributor plate 20, which is essentially perpendicular to said distributor plate. Hereby the manure will be diverted essentially uniformly in all directions.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is having an extension between said first opening 14 and said second opening 16 of 150 - 400 mm, such as 200 - 350 mm or 250 - 300 mm.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube is having a cross-sectional area selected from the ranges of 10 - 160 cm², such as 20 - 150 cm², for example 30 - 140 cm², e.g. 40 - 130 cm², such as 50 - 120 cm², for example 60 - 110 cm², such as 70 - 100 cm²or 80 - 90 cm².

The above stated dimensions have proven well suited in relation to amount of manure and pressure of the manure to be delivered from a manure tank in an agricultural field.

In one embodiment of the tool according to the first aspect of the present invention, the first opening 14 of said delivery tube 12 is being circular and is having an inner diameter of 35 - 100 mm, such as 40 - 90 mm, for example 50 - 80 mm or 60 - 70 mm.

Such dimensions will fit commonly used tubing.

In one embodiment of the tool according to the first aspect of the present invention, the inner cross-sectional area of said first opening 14 of said delivery tube 12 is smaller than the inner cross-sectional area of said second opening 16 thereof.

Hereby risk of clogging of solid matter in the delivery tube is reduced.

In one embodiment of the tool according to the firs aspect of the present invention, the second opening 16 of said delivery tube is having an oblong shape, such as an oval shape or a rectangular shape, thereby defining a major axis 24 and a minor axis 26 of said opening, said major axis 24 and said minor axis 26 are being perpendicular to each other, wherein the ratio of magnitude of the minor axis to magnitude of the major axis is selected from the ranges of 0.30 - 0.95, such as 0.35 - 0.90, for example 0.40 - 0.85, for example 0.45 - 0.80, e.g. 0.50 - 0.75, such as 0.55 - 0.70 or 0.60 - 0.65.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is being arranged in said tool in such a way that said major axis 24 is being aligned in a direction essentially parallel to said longitudinal direction X or is being aligned in a direction essentially perpendicular to said longitudinal direction X.

By these two embodiments, a non-uniform spreading in various directions may be attained.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is being arranged in relation to said distributor plate 20 in such a way that a manure delivery direction 28 of said delivery tube 12 points to a center portion 30 of said distributor plate 20, wherein said manure delivery direction 28 is being defined as the direction between a midpoint 32 of said first opening 14 and a midpoint 34 of said second opening 16 of said delivery tube 12.

This will assure efficient spreading of the manure in a horizontal direction. In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 at its first opening 14 comprises a manifold having two, three or more connection pipes for receiving manure from two, three or more manure delivering hoses.

Hereby, increased amounts of manure may be delivered to the same delivery tube 12.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 at its second opening 16 comprises a detachable nozzle, such as a rubber nozzle.

A detachable nozzle allows for easy altering the distribution pattern of manure exiting the delivery tube.

In one embodiment of the tool according to the first aspect of the present invention, at least part of said wing element 18 is having a downward inclination, in relation to said distributor plate 20, when viewed in a forward pointing direction parallel to said longitudinal direction X of said tool.

In one embodiment of the tool according to the first aspect of the present invention, the inclination angle of at least said part of said wing element 18 is selected from the ranges 1 - 30°, such as 2 - 29°, for example 3 - 28°, such as 4 - 27°, e.g. 5 - 26°, for example 6 - 25°, such as 7 - 24°, such as 8 - 23°, for example 9 - 22°, for example 10 - 21°, such as 11 - 20°, such as 12 - 19°, for example 13 - 18°, such as 14 - 17° or 15 - 16°.

With the above two embodiments is assured that the wing element of the tool will constantly, while being moved through soil, remain below the surface level of the soil.

In one embodiment of the tool according to the first aspect of the present invention, the wing element 18 is being symmetric around a vertical plane which is parallel to said longitudinal direction X and perpendicular to said transversal direction Y.

Hereby is assured that the drag encountered by the wing element during moving the tool through soil, is being symmetric.

In one embodiment of the tool according to the first aspect of the present invention, the wing element 18 comprises a first wing element part 36 and a second wing element part 38, wherein said first wing element part 36 and said second wing element part 38 are being arranged in a swept-back wing configuration.

This design has proven efficient for the intended purpose of the tool.

In one embodiment of the tool according to the first aspect of the present invention, the wing element 18 at a first extreme lateral portion 40 thereof comprises a first soil cavity forming element 42 arranged at a lower surface 44 thereof, and wherein said wing element 18 at a second extreme lateral portion 46 thereof comprises a second soil cavity forming element 48 arranged at a lower surface 44 thereof.

In one embodiment of the tool according to the first aspect of the present invention, the first elongate soil cavity forming element 42 and/or said second elongate soil cavity forming 48 is/are being aligned in a direction which is essentially parallel to a vertical plane comprising said longitudinal direction X. The above two embodiments ensures that cavities for accommodating manure is/are being formed in the soil at the position corresponding to the extreme lateral locations of the wing element 18.

In one embodiment of the tool according to the first aspect of the present invention, the wing element 18 is having a maximum width, as measured in a direction parallel to said transversal direction Y, of 200 - 650 mm or more, such as 250 - 600 mm, e.g. 300 - 550 mm, for example 350 - 500 mm or 400 - 450 mm.

These dimensions have proven beneficial for the intended purpose.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is being arranged in relation to said wing element 18 in such a way that no portion of said delivery tube 12 extends further rearward than the most rearward portion of said wing element 18.

In one embodiment of the tool according to the first aspect of the present invention, the delivery tube 12 is being arranged at a central position, in relation to said transversal direction Y, of said wing element 18.

This will contribute to a symmetric distribution of the manure being delivered.

In one embodiment of the tool according to the first aspect of the present invention, at least part of said second opening 16 of said delivery tube 12 is being arranged at a level below at least a portion of said wing element 18; or at a level above at least a portion of said wing element 18, or at a level corresponding to a portion of said wing element 18.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having an essential flat shape.

A flat shape will minimize drag when the tool is moved through soil.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having an orientation which is essentially parallel to said longitudinal direction X.

This embodiment will minimize drag when the tool is moved through soil.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having a front edge 50, wherein said front edge 50 is being fastened, such as by welding, to a lower surface 44 of said wing element 18.

Hereby the distributor plate will be securely fixed to the rest of the tool.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having a maximum width, in said transversal direction Y, selected from the ranges of 10 - 50 cm, such as 15 - 45 cm, e.g. 20 - 40 cm or 25 - 35 cm.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having a maximum length, in a said longitudinal direction X, selected from the ranges of 10 - 35 cm, such as 15 - 30 cm or 20 - 25 cm . In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is being arranged in relation to said delivery tube 12 in such a way that the minimum distance between said distributor plate 20 and said second opening 16 of said delivery tube 12 is being selected from the ranges of 20 - 100 mm or more, such as 25 - 90 mm, e.g. 30 - 85 mm, such as 35 - 80 mm, such as 40 - 75 mm , for example 45 - 70 mm, such as 50 - 65 mm or 55 - 60 mm.

The dimensions set out in the above three embodiments have proven efficient for the purpose of the tool.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is having an arched rear end portion 52.

In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is being connected to said wing element 18, such as by welding.

Hereby the distributor plate will be securely fixed to the rest of the tool.

In one embodiment of the tool according to the first aspect of the present invention, the tool comprises a mounting means 54 for mounting said tool onto a mounting bar 302 of a tool carrier 304 of a tool assembly 300.

Hereby the tool may easily be attached and detached to a tool assembly.

In one embodiment of the tool according to the first aspect of the present invention, the mounting means 54 comprises one or more through-going holes 56 for bolting that tool 100 onto said mounting bar 302 of said tool carrier 304 of said tool assembly 300.

Such through-going holes provides for efficient attachment of the tool to a mounting bar.

In one embodiment of the tool according to the first aspect of the present invention, the tool additionally comprises a deflector element 58 for deflecting soil when being moved through that soil, wherein said deflector element 58 is being arranged in front of said delivery tube 12.

The deflector element serves the purpose of minimizing drag of the tool when being moved through soil.

In one embodiment of the tool according to the first aspect of the present invention, the deflector element 58 extends in an upward direction from said wing element 18.

Hereby, the deflector element will protect the delivery tube of the tool.

In one embodiment of the tool according to the first aspect of the present invention, the deflector element 58 is being connected to said wing element 18, such as by being welded thereto.

In one embodiment of the tool according to the first aspect of the present invention, the deflector element 58 comprises a front portion 60 which is being arranged between a first side portion 62 and a second side portion 64, wherein said front portion 60 is being tapered in a forward pointing direction.

Such a design will efficiently minimize drag when being moved through soil. In one embodiment of the tool according to the first aspect of the present invention, said front portion 60 of said deflector element 58 extends upward from said wing element 18 at a front portion 35 thereof, optionally in such a way, that said front portion 60 essentially does not extent, in a forward direction, beyond the extension, in a forward direction, of said wing element 18.

Such a tool will be rather compact and very suitable for spreading manure in soil comprising relatively little vegetation.

In one embodiment of the tool according to the first aspect of the present invention said deflector element 58 extends in a forward direction beyond a front portion 35 of said wing element 18; thereby making said deflector element 58 comprise a deflector element rear portion 58a and a deflector element front portion 58b; wherein said deflector element rear portion 58a extends rearward from said front portion 35 of said wing element 18; and wherein said deflector element front portion 58b extends forward from said front portion 35 of said wing element 18.

In one embodiment of this embodiment said deflector element front portion 58b extends, in a forward direction, beyond said front portion 35 of said wing element 18 by a distance of 20 - 100 cm or more, such as 25 - 75 cm, for example 30 - 65 cm, e.g. 35 - 60 cm, for example 40 - 55 cm or 45 - 50 cm.

In one embodiment of the tool according to the first aspect of the present invention a lower portion 39 of said deflector element front portion 58b extends in a forward and upward direction from said front portion 35 of said wing element 18.

In one embodiment of the tool according to the first aspect of the present invention a front end 39a of said lower portion 39 of said deflector element front portion 58b is being upwardly curved.

In one embodiment of the tool according to the first aspect of the present invention said deflector element front portion 58b, is being tapered in a vertical direction so that the vertical extension of said deflector element front portion 58b diminishes in a direction from a rear position thereof to a front position thereof.

In one embodiment of the tool according to the first aspect of the present invention a top element 63 is being arranged between a top rim of said first side portion 62 and a top rim of said second side portion 64 of said deflector element 58, thereby at least partly sealing off access, from above, into the interior of said deflector element 58.

The embodiments of the tool 100 disclosed above and comprising a deflector element front portion 58b extending in a forward direction from said wing element 18,35 have proven beneficial when used in soil having a relatively large amount of vegetation.

In one embodiment of the tool according to the first aspect of the present invention, the deflector element 58 comprises the mounting means 54 for mounting said tool 100 onto a mounting bar 302 of a tool assembly 300.

As the deflector element is of a sturdy design, the arrangement of the mounting means 54 on the deflector element 58 ensures sturdy mounting of the tool. In one embodiment of the tool according to the first aspect of the present invention the mounting means 54 is/are being arranged at said deflector element rear portion 58a and/or at said deflector element front portion 58b.

Hereby, a sturdy mounting of the tool 100 onto a tool carrier 304 of a tool assembly 300 can be attained.

In one embodiment of the tool according to the first aspect of the present invention, the deflector element 58 is being hollow, thereby forming an interior space 66 in said deflector element 58.

In one embodiment of the tool according to the first aspect of the present invention, the mounting means 54 comprises first mounting means 68 and second mounting means 70 for collectively mounting said tool 100 onto a mounting bar 302 of a tool assembly 300; wherein said first mounting means 68 comprises one or two through-going holes 56 in said deflector element 58.

In one embodiment of the tool according to the first aspect of the present invention, the second mounting means 70 comprises an opening 74 in a bottom part 76 of said tool 100, thereby allowing said mounting bar 302, to be positioned in said tool 100 by being accommodated in said interior space 66 of said deflector element 58 and so as to engage with said first mounting means 68, such as via bolting said mounting bar 302 through said through- going holes 56 and so as to be engaged with said opening 74 of said second mounting means 70.

In one embodiment of the tool according to the first aspect of the present invention, the second mounting means 70 comprises said opening 74 in said wing element 18 and/or in said deflector plate 20, wherein said opening 74 is configured for accommodating a lower end of said mounting bar 302 of said tool assembly 300.

Providing such first and second mounting means have proven a safe way of mounting the tool on a tool bar and hence subsequently to a tool assembly as described below.

In one embodiment of the tool according to the first aspect of the present invention said tool comprises one or more exchangeable wearing parts 80, wherein one or more of said one or more wearing parts is forming part of said tool, such as forming part of said wing element 18, of said deflector element 58 such as of said deflector element rear portion 58a or of said deflector element front portion 58b, or of said lower portion 39 of said deflector element front portion 58b; wherein one or more of said one or more wearing parts 80 are being detachable mounted onto said tool, such as by being bolted thereon.

Providing the tool 100 with such exchangeable wearing parts prolongs the life span of the tool itself in that those parts that wear out can easily be exchanged.

In one embodiment of the tool according to this embodiment, one of said exchangeable wearing parts 80 is being a wearing part 80 constituting said lower portion 39 of said deflector element front portion 58b, wherein said wearing part 80,39 is being configured to be accommodated in a space formed between a first side portion 62 and a second side portion 64 of said deflector element 58. In one embodiment of the tool according to the first aspect of the present invention, the distributor plate 20 is being omitted.

In such an embodiment said tool is a tool for supplying and distributing manure 2 below the surface 4 of soil 6 in an agricultural field, wherein said tool in the orientation intended during use is having a leading portion 8 and a trailing portion 10, wherein the direction from said trailing portion to said leading portion is defining a longitudinal direction X of said tool, and wherein a transversal direction Y of said tool is being defined as a lateral direction perpendicular to said longitudinal direction X; wherein said tool comprises: a delivery tube 12 for delivering manure to the soil, said delivery tube comprises a first opening 14 for receiving manure and an opposite, second opening 16 for expelling manure from said delivery tube, wherein said first opening 14 is being arranged above said second opening 16; a wing element 18 for creating a downward acting force upon being moved through soil.

Such an embodiment is particularly suitable for spreading manure in relatively hard or in relatively dry and hard soil, wherein the delivered manure has less tendency to spread soil, compared to the situation in respect of a relatively soft soil or in respect of a relatively wet and soft soil.

The second aspect of the present invention

The present invention relates in a second aspect to a tool assembly 300 comprising a tool carrier 304 in combination with one or more tools 100 according to the first aspect, wherein said one or more tools 100 is/are being arranged on said tool carrier 304, said tool assembly 300 additionally comprises one or more support wheels or rollers 306 which is/are being arranged on said tool carrier 304 so as to be able to freely rotate.

The wheels or rollers 306 of the tool assembly will counteract the downward directing force exerted on the wing element 18 of the tool while moving the tool through soil. Thereby a rather fixed working depth of the tool will be ensured.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool carrier 304 in respect of one or more of said tools 100 additionally comprises a mounting bar 302, wherein said tool 100 is being suspended onto said mounting bar 302.

The mounting bar 302 accordingly connects the tool 100 to the tool carrier 304 of the tool assembly.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool carrier 304 comprises a mounting bar holder 318 which comprises a vertically arranged tube 320 having an upper end 322 and an open lower end 324, wherein the dimensions and geometry of said mounting bar 302 and of said mounting bar holder 318 are adapted to each other in such a way that said mounting bar 302 can be inserted into said open lower end 324 of said mounting bar holder 318 and thereby hold said mounting bar 302 and hence said tool 100 in place.

Such a design will be able to withstand the very strong drag forces encountered when moving the tool through soil.

In one embodiment of the tool assembly according to the second aspect of the present invention, the mounting bar 302 in its one end 303 comprises a female thread 326, and said mounting bar holder 318 comprises a threaded rod 328 which is being rotably mounted at said upper end 322 of said mounting bar holder, wherein the thread of said threaded rod is adapted to the thread of said female tread 326 and engaged therewith, thereby allowing adjustment of the vertical height of said mounting bar 302 and hence said tool 100 in relation to said tool carrier 304 by rotation of said threaded rod.

This arrangement provides in a simple way the possibility of adjusting the vertical position of the tool in relation of the tool carrier of the tool assembly.

In one embodiment of the tool assembly according to the second aspect of the present invention, the threaded rod 328 at its upper end is provided with a handle 330.

The handle makes it easy to adjust the vertical position of the tool in relation of the tool carrier of the tool assembly.

In one embodiment of the tool assembly according to the second aspect of the present invention, the one or more support wheels or rollers 306 is/are support wheels or rollers 306a which are being arranged at a position behind said one or more tools 100.

Hereby the wheel(s) or roller(s) may participate in levelling out any stirred up soil left behind by the tool after being moved through the soil.

In one embodiment of the tool assembly according to the second aspect of the present invention said one or more support wheels or rollers 306a is/are being suspended onto said tool carrier 304 in a wheel/roller suspension 360, wherein said wheel/roller suspension 360 is being configured to pivot in relation to said tool carrier 304.

In one embodiment of the tool assembly according to the second aspect of the present invention said wheel/roller suspension 360 additionally comprises height adjustment means 362, such as being in the form of a spindle arrangement having a handle 364 configured in such a way that turning said handle will effect a pivoting movement of said wheel/roller suspension 360a, and thereby adjust the height level of said support wheels or rollers 306a in relation to said tool carrier 304.

In one embodiment of the tool assembly according to the second aspect of the present invention said one or more support wheels or rollers 306 is/are being support wheels or rollers 306b which is/are being arranged at a position in front of at least a part of said one or more tools 100.

In one embodiment of the tool assembly according to the second aspect of the present invention said wheels or rollers 306b is/are being arranged in front of said wing element 18 of said tool 100, optionally in front of any part of said tool 100. In one embodiment of the tool assembly according to the second aspect of the present invention said one or more support wheels or rollers 306b is/are being suspended onto said tool carrier 304 in a wheel/roller suspension 366, wherein said wheel/roller suspension 366 is being configured to pivot in relation to said tool carrier 304.

In one embodiment of the tool assembly according to the second aspect of the present invention said wheel/roller suspension 366 additionally comprises height adjustment means 368, such as being in the form of a spindle arrangement having a handle 370 configured in such a way that turning said handle will effect a pivoting movement of said wheel/roller suspension 366, and thereby adjust the height level of said support wheels or rollers 306b in relation to said tool carrier 304.

The presence of such “rear” wheels or rollers 306,306a and “front” wheels or rollers 306,306b on the tool assembly 300 will each counteract the downward force generated by the wing element 18 when being moved through soil.

In one embodiment of the tool assembly according to the second aspect of the present invention, one or more of said one or more support wheels or rollers 306 is/are wheel(s) comprising a hub and a rim surrounded by a tire, such as rubber tire.

Such types of wheels are customary in the field of agriculture.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly comprises one and only one tool 100 and one and only one support wheel or roller 306, such as one and only one support wheel or roller 306a, or one and only one support wheel or roller 306b

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly comprises two, three or more tools 100 and one and only one support wheel or roller 306, such as one and only one support wheel or roller 306a, or one and only one support wheel or roller 306b.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly comprises one and only one tool 100 and two or three support wheels or rollers 306), such as two or three support wheels or rollers 306a, or two or three support wheels or rollers 306b.

The above-listed various configurations as to number of tools per number of wheels have proven efficient for the intended purpose.

In one embodiment of the tool assembly according to the second aspect of the present invention and in respect of one or more of said one or more support wheels or rollers 306, said support wheels or rollers 306 is having an outer diameter of 20 - 75 cm, such as 25 - 70 cm, e.g. 30 - 65 cm, such as 35 - 60 cm, for example 40 - 55 com or 45 - 50 cm.

Such dimensions have proven sufficient and efficient for the intended purpose.

In one embodiment of the tool assembly according to the second aspect of the present invention and in respect of one or more of said one or more support wheels or rollers 306, said support wheels or rollers 306 is having a width of 10 - 50 cm, such as 12 - 45 cm, such as 15 - 40 cm, for example 20 - 35 cm or 25 - 30 cm. Such dimensions have proven sufficient and efficient for the intended purpose.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly in respect of one or more of said tools 100, such as in respect of all said tools, additionally comprises a cutting disc 308 for cutting plant residues or the like which are being present in the soil, wherein at least part of said cutting disc 308, preferably the entire portion of said disc is being arranged at a position in front of said tool 100.

The cutting disc(s) will accordingly protect the tool of the tool assembly.

In one embodiment of the tool assembly according to the second aspect of the present invention and in respect of one or more of said cutting discs 308, said cutting disc is having a circular circumference, or a scalloped or notched circumference, or a waved circumference.

In one embodiment of the tool assembly according to the second aspect of the present invention and in respect of one or more of said cutting discs 308, said cutting disc is being arranged on said tool carrier 304 in a way that allows free rotation of said cutting disc 308.

In one embodiment of the tool assembly according to the second aspect of the present invention in respect of one or more of said cutting discs 308, said cutting disc is being arranged in a cutting disc bracket 310 on said tool carrier 304.

In one embodiment of the tool assembly according to the second aspect of the present invention in respect of one or more of said cutting discs 308, said cutting disc bracket 310 comprises height adjustment means 312 for allowing heigh adjustment of the position of said cutting disc 308 in relation to said wheel or rollers 306.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly comprises fastening means 332, such as one or two bushings 334 or pairs of bushings 334 for attaching said tool assembly 300 to a tool assembly suspension 404 of an agricultural implement 400.

Such bushing have proved to be an efficient and sturdy way of mounting the tool assembly to a frame of an agricultural implement.

In one embodiment of the tool assembly according to the second aspect of the present invention, the tool assembly in respect of one or more of said tools 100, such as in respect of all said tools, additionally comprises one or more after-harrows 314.

An after-harrow will participate in levelling out any soil which have been stirred up by the moving tool.

In one embodiment of the tool assembly according to the second aspect of the present invention and in respect of one or more of said tools 100, said tool assembly comprises a first after-harrow 314a arranged at a position corresponding to a first side in relation to said tool 100, and a second after-harrow 314b arranged at a position corresponding to a second, opposite side in relation to said tool 100.

Two such after-harrows provide for efficient levelling of stirred-up soil. In one embodiment of the tool assembly according to the second aspect of the present invention, one or more of said one or more after-harrows 314,314a, 314b is/are being suspended on said tool carrier via a spring suspension 316.

Spring suspensions will allow the after-harrows to slightly move, thus softening any impact with stones or like on the agricultural field.

In one embodiment of the tool assembly according to the second aspect of the present invention said after-harrow(s) 314,314a, 314b is/are being arranged on an after-harrow bracket 315 which is pivotally suspended on said tool carrier 304, such as being able to freely pivot in relation to said tool carrier 304.

In one embodiment of the tool assembly according to the second aspect of the present invention said after-harrow bracket 315 comprises height adjustment means, wherein said height adjustment means 350 optionally comprises a chain or a cord suspending said afterharrow bracket 315 onto said tool carrier 304.

These arrangements of an after-harrow will participate in levelling out any soil which have been stirred up by the moving tool. In one embodiment of the tool assembly according to the second aspect of the present invention, one or more of said one or more after-harrows 314,314a, 314b is/are in the form of a wheel or disc which is being obliquely arranged on said tool carrier 304 in relating to the longitudinal direction of said tool(s)

The third aspect of the present invention

In a third aspect, the present invention relates to an agricultural implement 400 for spreading manure in an agricultural field, wherein said implement comprises a frame 402 and a plurality of tool assemblies 300 according to the second aspect of the present invention, wherein said tool assemblies 300 are being mounted on said frame 402.

In one embodiment of the agricultural implement according to the third aspect of the present invention and in respect of any two adjacent tools 100 of said tool assemblies, the distance between centers of delivery tubes 12 of said tools 100 independently is selected from the ranges of 15 - 80 cm, such as 20 - 75 cm, e.g. 25 - 70 cm, for example 30 - 65 cm, such as 35 - 60 cm, e.g. 40 - 55 cm or 45 - 50 cm.

Such distances have proven efficient for spreading a suitable amount of manure in an agricultural field.

In one embodiment of the agricultural implement according to the third aspect of the present invention, the agricultural implement comprises a manure distributing device 406, such as a manure distributing device comprising a macerator, and having an inlet opening 408 for allowing delivery of manure from a manure holding tank via a hose, and wherein said manure distributor comprises a plurality of outlet openings 410 for delivering manure to the delivery tubes 12 of said tools 100 of said tool assemblies 300.

In one embodiment of the agricultural implement according to the third aspect of the present invention, the agricultural implement 400 comprises a plurality of hoses connecting said a plurality of outlet openings 410 to said delivery tubes 12 of said tools 100 of said tool assemblies 300.

The manure delivering device provides for distributing manure originating form a single hose from a manure tank to a plurality of hoses for delivering manure from the delivering device to each of the delivery tubes 12 of the tools 100 of the tool assemblies 300 of the agricultural implement 400.

In one embodiment of the agricultural implement according to the third aspect of the present invention, the agricultural implement 400 comprises one or more tool assembly suspensions 404 for suspending one or more of said tool assemblies 300.

The tool assembly suspension provides for connection a tool assembly to the frame of the agricultural implement.

In one embodiment of the agricultural implement according to the third aspect of the present invention and in respect of said one or more tool assembly suspensions 404, said agricultural implement comprises a parallelogram frame 412 having a front end 414 with two connection points 416 and a rear end 418 with two connection points 416, wherein said front end 414 of said parallelogram frame is being connected to said frame 402 of said agricultural implement 400, and wherein said rear end 418 of said parallelogram frame is being connected to said tool assembly 300, such as to its bushings 334 of its fastening means 332.

Use of a parallelogram frame ensures that the orientation remains unaltered when changing the vertical position of said tool assembly in relation to said frame of said agricultural implement.

In one embodiment of the agricultural implement according to the third aspect of the present invention and in respect of said one or more tool assembly suspensions, said agricultural implement comprises lifting means 420, such as a hydraulic actuator for changing the vertical position of said tool assembly in relation to said frame 402 of said agricultural implement 400.

In one embodiment of the agricultural implement according to the third aspect of the present invention in respect of said one or more tool assembly suspensions, said agricultural implement 300 comprises a spring having a first end which is connected to said frame 402 of said agricultural implement 400 and a second end which is connected to said tool assembly 300, thereby allowing exerting a force forcing said tool assembly 300 against the surface of the soil.

In one embodiment of the agricultural implement according to the third aspect of the present invention, the frame 402 comprises two or more frame sections 402a, 402b, 402c which are configured to be pivotably suspended in relation to each other, and which are configured to be able to shift configuration, such as by means of one or more hydraulic actuators 422, between a work configuration, in which one or more of said two or more frame sections 402a, 402b, 402c are folded down and a transport configuration, in which one or more of said two or more frame sections 402a, 402b, 402c are raised.

Hereby a relative broad working configuration and a relative narrow transport configuration of the implement can be attained. In one embodiment of the agricultural implement according to the third aspect of the present invention the frame 402 comprises a fixed middle frame section 402a and two side frame sections 402b, 402c, wherein said two side frame sections 402b and 402c are configured to be able to shift configuration, between said work configuration, in which said two side frame sections 402b, 402c are folded down and said transport configuration, in which said two frame sections 402b, 402c are raised in relation to said fixed middle frame section 402a.

In one embodiment of the agricultural implement according to the third aspect of the present invention the agricultural implement (400) comprises one or more supporting wheels (424).

In one embodiment of the agricultural implement according to the third aspect of the present invention the agricultural implement (400) is being in the form of a self-propelled vehicle, optionally comprising a holding tank for manure, or wherein said agricultural implement (400) is in the form of a trailer to be connected to a self-propelled vehicle, wherein said agricultural implement (400) comprises connection means for being connected to said self- propelled vehicle.

In one embodiment of the agricultural implement according to the third aspect of the present invention and in respect of one or more tools 100 being arranged on said agricultural implement 400, such as in respect of each tool 100 being arranged on said agricultural implement, said agricultural implement 400 comprises a sowing device for planting seeds in the soil.

In one embodiment of this embodiment said sowing device comprises a hopper for accommodating seeds to be sown, a dosing unit for dosing a predetermined number of seed from said hopper, a delivery tube for delivering seeds, which have been dosed, by said dosing device, to the soil, a shear for creating an opening in the soil and optionally also a shear for covering soil over seeds which have been sown in the soil by said sowing device.

In one embodiment of this embodiment said sowing device is being configured for sowing seeds at lateral positions corresponding to lateral positions of the manure 2 being delivered by said tool 100.

The fourth aspect of the present invention

In a fourth aspect the present invention relates to a use of a tool 100 according to the first aspect of the present invention for delivering manure 2 in an agricultural field.

In one embodiment of the use according to the fourth aspect of the present invention, the use is for delivering of manure 2 below soil surface level 4 of said agricultural field.

The fifth aspect of the present invention

In a fifth aspect the present invention relates to a use of a tool assembly 300 according to the second aspect of the present invention for delivering manure 2 in an agricultural field.

In one embodiment of the use according to the fifth aspect, the use is for delivering of manure 2 below soil surface level 4 of said agricultural field. The sixth aspect of the present invention

In a sixth aspect the present invention relates to a use of an agricultural implement 400 according to the third aspect of the invention for delivering manure 2 in an agricultural field.

In one embodiment of the use according to the sixth aspect, the use is for delivering manure below soil surface level 4 of said agricultural field.

The seventh aspect of the present invention

In a seventh aspect the present invention relates to a method for delivering and distributing manure 2 below soil surface level 4 in an agricultural field, said method comprising the steps of: i) proving one or more tools 100 according to the first aspect of the invention; ii) delivering manure 2 to the first opening 14 of said delivery tube 16; iii) moving one or more of said one or more tools 100 through the soil of said agricultural field in such a way that said wing element 18 of said tool is being submerged in soil, thereby making said tool provide sub-soil delivery of manure 2 to said agricultural field.

In one embodiment of the method according to the seventh aspect, step i) is performed by providing a tool assembly 300 according to the second aspect of the invention; and step iii) is performed by moving said tool assembly 300 through the agricultural field in such a way that said one or more support wheel(s) 306 is/are supported on top of the surface 4 of the soil and in such a way that said one or more tools 100 is/are providing sub-soil delivery of manure 2 to the field.

In one embodiment of the method according to the seventh aspect, step i) is performed by providing an agricultural implement 400 according to the third aspect of the invention and step iii) is performed by moving said agricultural implement 400 through the agricultural field in such a way that said tools 100 of said one or more tool assemblies 300 of said implement 400 is/are providing sub-soil delivery of manure 2 to the field.

I order to better explain the present invention in its various aspect we now refer to the drawings, wherein Fig. l is a perspective view illustrating a tool according to the first aspect of the present invention as seen in an upper front view.

Fig. 1 shows the tool 100. The tool is for supplying and distributing manure 2 below the surface 4 of soil 6 in an agricultural field.

In the orientation intended during use, as illustrated in Fig. 1, the tool is having a leading portion 8 and a trailing portion 10. An intended direction of movement of the tool through soil is defined as the longitudinal direction X extending from the trailing portion to the leading portion as denoted by the arrows.

A transversal direction Y of the tool is defined as a lateral direction perpendicular to said longitudinal direction X as shown. The tool itself comprises a delivery tube 12 for delivering manure to the soil. The delivery tube comprises a first opening 14 for receiving manure and an opposite, second opening 16 for expelling manure from the delivery tube. It is seen that the first opening 14 is being arranged above the second opening 16.

Fig. 1 also shows that the tool 100 comprises a wing element 18. By making sure that the wing element 18 is being inclined in a downward direction, relative to the direction of movement through soil, a downward acting force will be exerted on the tool.

The wing element 18 is being symmetric around a vertical plane which is parallel to said longitudinal direction X and perpendicular to said transversal direction Y.

It is seen in Fig. 1, that the wing element 18 comprises a first wing element part 36 and a second wing element part 38. The first wing element part 36 and the second wing element part 38 are being arranged in a swept-back wing configuration between the two extreme lateral portions 40,46.

Also seen in Fig. 1 is that the tool 100 comprises a distributor plate 20. The distributor plate is for distributing manure in a horizontally oriented direction when manure is directing thereto from a position above the distributor plate 20 via the manure delivery tube 12.

The distributor plate 20 is having an essential flat shape and the distributor plate 20 is having an orientation which is essentially parallel to said longitudinal direction X.

This means that the drag when moving the tool through soil is minimized.

Finally, Fig 1 shows that the tool 100 comprises a deflector element 58 for deflecting soil when being moved through that soil. It is seen that the deflector element 58 is being arranged in front of the delivery tube 12 and that the deflector element 58 extends in an upward direction from the wing element 18.

The deflector element 58 is being connected to the wing element 18 by being welded thereto.

In the embodiment illustrated in Fig. 1 the deflector element 58 comprises a front portion 60 and a first side portion 62 and a second side portion 64. The front portion 60 is being tapered in a forward pointing direction.

It is seen in Fig. 1 that the deflector element 58 is being hollow, thereby forming an interior space 66 in the deflector element 58 for accommodating a mounting bar 302 of a tool assembly 300 as described in further detail below.

Mounting means 54,68 in the form of through-going holes 56 are provided for mounting the tool 100 onto such a mounting bar 302 of a tool assembly 300.

The working mode of the tool 100 is as follows:

Upon being moved through soil 6 of an agricultural field, the inclination of the wing element 18, relative to a direction of movement X, will ensure that the wing element remains below the surface 4 of soil 6. Hereby, also the distributor plate 20 remains below the surface 4 of the soil 6. Due to the extension in the transversal direction Y of the wing element 18, a cavity in the soil will temporarily be formed below the surface of the soil. When delivering manure through the delivery tube 12 and when expelling this manure from the second opening 16 of the delivery tube, the manure will hit the distributor plate 20 and be directed in an essentially horizontal direction thereby filling the cavity which has been formed by the wing element in width corresponding the width of that wing element 18.

Accordingly, the tool 100 of the first aspect of the present invention provides for laying out manure at a subsoil level in a relative broad band and in a relatively shallow depth, relative to the width of the delivery tube.

Fig. 2 is a perspective view illustrating a tool 100 according to the first aspect of the present invention as seen in an upper rear view.

Fig. 2 shows that the distributor plate 20 is having an arched rear end portion 52 and that the distributor plate 20 is having a front edge 50, which is being fastened, such as by welding, to a lower surface 44 of the wing element 18.

It is seen that a portion 22 of the distributor plate 20 is being arranged below the second opening 16 of the delivery tube 12.

Fig. 3 is a front view illustrating a tool 100 according to the first aspect of the present invention as seen from the front and Fig. 4 is a cross-sectional side view illustrating a tool 100 according to the first aspect of the present invention.

Fig. 4 shows that the delivery tube 12 is being arranged in relation to the distributor plate 20 in such a way that a manure delivery direction 28 of said delivery tube 12 points to a center portion 30 of the distributor plate 20, when the manure delivery direction 28 is being defined as the direction between a midpoint 32 of the first opening 14 and a midpoint 34 of the second opening 16 of the delivery tube 12.

Fig. 5 is a plan view illustrating a tool 100 according to the first aspect of the present invention as seen from above.

Fig. 5 shows that the manure delivery tube 12 is having a circular first (upper) opening 14 and an oval second (lower) opening 16. The oval second opening 16 is defining a major axis 24 and a minor axis 26 of that opening. The major axis 24 and the minor axis 26 are being perpendicular to each other, and the ratio of magnitude of the minor axis to magnitude of the major axis is less than one (1.00).

Also, it is seen that the tube 12 is being arranged in the tool in such a way that the major axis 24 is being aligned in a direction parallel to the longitudinal direction X.

Fig. 5 also shows that the tool comprises mounting means 70,72 comprises an opening 74 in a bottom part 76 of the tool 100, that is in the wing element 18, thereby allowing a mounting bar 302 to be positioned in the tool 100 by being accommodated in the interior space 66 of the deflector element 58 and so as to engage with the first mounting means 68, such as via bolting the mounting bar 302 through the through-going holes 56 (see Fig. 1) and so as to be engaged with the opening 74.

Fig. 6a is a perspective view illustrating an embodiment of the tool according to the first aspect of the present invention as seen in an lower front view. Fig. 6b is a plan view illustrating the tool of Fig. 6a as seen from below.

Fig. 6a and 6b shows that the wing element 18 of the tool 100 at a first extreme lateral portion 40 thereof comprises a first soil cavity forming element 42 arranged at a lower surface 44 thereof, and that the wing element 18 at a second extreme lateral portion 46 thereof comprises a second soil cavity forming element 48 arranged at a lower surface 44 thereof.

It is seen in Fig. 6b that the first elongate soil cavity forming element 42 and the second elongate soil cavity forming 48 are being aligned in a direction which is parallel to a vertical plane comprising the longitudinal direction X.

The soil cavity forming element 42,48 provides for making additional space in the soil and at a subsoil level of manure being delivered by the tool 100.

It is seen in Fig. 7a that when using a prior art subsoil manure delivering tool which does not include a distributor plate for diverting the delivered manure into a horizontal direction a rather high vertical column 7 of stirred up soil mixed with manure 2 will result. Such a high vertical column of soil, saturated with manure will make the soil above that area 7 and immediately to the side thereof so soft that in case it is attempted, within a few days after application of the manure, to drive a tractor over it, the manure of the area 7 will be compressed to an extend that forces the manure to the surface 4 of the soil, thus leading to those odors which were to be prevented in the first place. Besides, the very narrow strip of manure/soil 7 makes it difficult in a subsequent sowing process to sow the seeds at exact positions where manure has been delivered.

The tool according to the present invention in its first aspect solves this problem. This is illustrated in Fig. 7b.

Because of the distributor plate 20 which is arranged below the second opening 16 of the manure delivering tube 12, any manure delivered will be diverted in an essentially horizontal direction.

This has the effect that the manure will be delivered to the soil in a broader and more shallow area of stirred up soil and manure 7,2.

In this situation, because the area 7 is shallower, the soil below the location of the strip of applied manure will much faster be able to absorb the liquid of the manure.

Moreover, as the area 7 of stirred up soil and manure 2 is much broader, it is more likely that the seed to be sown subsequently will be sown at the strip where manure in fact has been applied. In other words, with the tool 100 of the present invention there is a larger margin for error as to the exact location of the seed to be sown. Fig. 8 is a perspective view illustrating a tool assembly according to the second aspect of the present invention as seen in an upper front view.

Fig. 8 shows the tool assembly 300 comprising a tool carrier 304 in combination with a tool 100 according to the first aspect of the present invention. The tool 100 is being arranged on the tool carrier 304. As seen, the tool assembly 300 additionally comprises a support wheel 306 which is being arranged on the tool carrier 304 so as to be able to freely rotate.

It is seen that the wheel 306 comprises a hub and a rim surrounded by a tire and that the wheel 306 is being arranged at a position behind the tool 100.

The tool assembly 300 additionally comprises after-harrows 314. In the embodiment illustrated in Fig. 8, the tool assembly 300 comprises a first after-harrow 314a arranged at a position corresponding to a first side in relation to the tool 100, and a second after-harrow 314b arranged at a position corresponding to a second, opposite side in relation to the tool 100. The after-harrows 314,314a, 314b are being suspended on the tool carrier 304 via a spring suspension 316 and the after-harrows 314,314a, 314b are in the form of a disc which is being obliquely arranged on the tool carrier 304 in relating to the longitudinal direction of the tool 100.

Fig. 8 additionally illustrates that the tool assembly 300 comprises a cutting disc 308 for cutting plant residues or the like which are being present in the soil. The cutting disc 308, is being arranged at a position in front of the tool 100.

As seen the cutting disc is having a circular circumference and is being arranged on the tool carrier 304 in a way that allows free rotation of the cutting disc 308 in relation to a cutting disc bracket 310 connected to the tool carrier 304.

The cutting disc bracket 310 comprises height adjustment means 312 for allowing heigh adjustment of the position of the cutting disc 308 in relation to the wheel 306.

Fig. 8 also shows that the tool assembly comprises fastening means 332, such as pairs of bushings 334 for attaching the tool assembly 300 to a tool assembly suspension 404 of an agricultural implement 400.

In addition, Fig. 8 shows that the tool carrier 304 comprises a mounting bar holder 318 which accommodates the mounting bar 302 which is connected to the tool 100.

Fig. 9 is a perspective view illustrating the tool assembly as illustrated in Fig. 8 in an upsidedown view.

The mounting bar 302/mounting bar holder 318 arrangement is further illustrated below with reference to Fig. 10a, Fig. 10b and Fig. 11.

Fig. 11 is a cross-sectional view illustrating part of the tool assembly illustrated in Fig. 10b. Fig. 10a and Fig. 10b show the tool carrier 304 of the tool assembly 300 comprising the wheel 306, the cutting disc 308 and the after harrow 314. The tool carrier 304 comprises a mounting bar holder 318 into which interior the mounting bar 302 onto which the tool is suspended, is arranged.

Fig. 11 is a closeup view of the circled section B of Fig. 10b.

Fig. 11 shows that the mounting bar holder 318 is attached to the tool carrier 304 of the tool assembly 300. The mounting bar holder 318 comprises a vertically arranged tube 320 having an upper end 322 and an open lower end 324. The dimensions and geometry of the mounting bar 302 and of the mounting bar holder 318 are adapted to each other in such a way that the mounting bar 302 can be inserted into the open lower end 324 of the mounting bar holder 318 and thereby hold the mounting bar 302 and hence the tool 100 in place.

The mounting bar 302 in its one end 303 comprises a female thread 326, and the mounting bar holder 318 comprises a threaded rod 328 which is being rotably mounted at the upper end 322 of the mounting bar holder 318. The thread of the threaded rod 328 is adapted to the thread of the female thread 326 of the mounting bar 302 and is engaged therewith, thereby allowing adjustment of the vertical height of the mounting bar 302 and hence also of the tool 100 in relation to the tool carrier 304 by rotation of the threaded rod 328.

The threaded rod 328 is at its upper end is provided with a handle 330 as suggested in Fig. 10a.

Fig. 12b is a top view illustrating an agricultural implement of Fig. 12a.

Fig. 12a and Fig. 12c show the agricultural implement 400 for spreading manure in an agricultural field, The agricultural implement comprises a frame 402, 402a, 402b, 402c and twelve tool assemblies 300 according to the second aspect of the present invention. The twelve tool assemblies 300 are being mounted on the frame 402, 402a, 402b, 402c.

It is seen in Fig. 12a and Fig. 12c that the agricultural implement 400 comprises a manure distributing device 406 comprising a macerator and having an inlet opening 408 for allowing delivery of manure from a manure holding tank via a hose, and that the manure distributor comprises a plurality of outlet openings 410 for delivering manure to the delivery tubes 12 of said tools 100 of said tool assemblies 300.

In use a plurality of hoses are connecting the plurality of outlet openings 410 to the delivery tubes 12 of the tools 100 of the tool assemblies 300 of the implement 400 (not shown in the figures).

It is seen in Fig. 12a, 12b and 12c that the frame 402 of the agricultural implement 400 comprises three frame sections 402a, 402b, 402c.

Accordingly, the frame 402 comprises a fixed middle frame section 402a and two side frame sections 402b, 402c. The two side frame sections 402b and 402c are configured to be able to shift configuration between a work configuration as illustrated in Fig. 12a, 12b and 12c, in which said two side frame sections 402b, 402c are folded down, and a transport configuration, in which the two frame sections, 402b, 402c are raised in relation to said fixed middle frame section 402a. The latter situation is illustrated in Fig. 13a, Fig. 13b and Fig. 13c.

Fig. 12c also shows that hydraulic actuators 422 provide for shifting between the work configuration and the transport configuration.

Fig. 13b is a side view of the embodiment illustrated in Fig. 13a.

Fig. 14a is a side view illustrating a middle section of an agricultural implement according to the third aspect of the present invention with its tool assemblies in a lowered position.

Fig. 14a and Fig. 14c show the middle section 402 of the frame 402 of an agricultural implement 400. The middle section 402a comprises four tool assemblies 300. Each tool assembly is being suspended by the frame section 402a by a tool assembly suspension 404.

Each tool assembly suspension 404 comprises a parallelogram frame 412 having a front end 414 with two connection points 416 and a rear end 418 with two connection points 416, wherein the front end 414 of the parallelogram frame is being connected to the frame section 402a of the agricultural implement 400. Additionally, the rear end 418 of the parallelogram frame is being connected to the tool assembly 300, namely to its bushings 334 of its fastening means 332.

As seen, the agricultural implement 400 comprises lifting means, in the form of a hydraulic actuator 420 for changing the vertical position of the tool assembly 300 in relation to the frame 402,402a of the agricultural implement 400.

Fig. 15a, Fig. 15b and Fig. 15c are analogue to Fig. 14a, Fig. 14b and Fig. 14c, respectively, and shows the middle section of an agricultural implement with its tool assemblies in a raised position.

Hence, Fig. 15a is side view illustrating a middle section 402a of an agricultural implement 400 according to the third aspect of the present invention with its tool assemblies 300 in a raised position.

Fig. 14b is a rear view illustrating the middle section 402a of the agricultural implement of Fig. 15a. Fig. 15c is a perspective view illustrating the middle section 402a of the agricultural implement 400 of Fig. 15a and 15b.

Fig. 16a - Fig. 16e are schematic illustrations illustrating various topologies in relation to different combinations, in a tool assembly according to the second aspect of the present invention, of number and positions of tools and number and positions of support wheels or rollers arranged at least partly behind the tool 100.

Accordingly, Fig. 16a is a schematic representation of a tool assembly 300 according to the second aspect, wherein the tool assembly comprises one and only one tool 100 and one and only one support wheel or roller 306, 306a.

Fig. 16b is a schematic representation of a tool assembly 300 according to the second aspect, wherein the tool assembly comprises two and only two tools 100 and one and only one support wheel or roller 306, 306a.

Fig. 16c is a schematic representation of a tool assembly 300 according to the second aspect, wherein the tool assembly comprises three and only three tools 100 and one and only one support wheel or roller 306, 306a.

Fig. 16d is a schematic representation of a tool assembly 300 according to the second aspect, wherein the tool assembly comprises one and only one tool 100 and two and only two support wheels or rollers 306, 306a.

Fig. 16e is a schematic representation of a tool assembly 300 according to the second aspect, wherein the tool assembly comprises one and only one tool 100 and three and only three support wheels or rollers 306,306a.

In each of the figures 16a - Fig. 16e it is seen that in relation the preferred direction of movement (X) of the tool 100, the support wheel(s) or rollers 306,306a is/are arranged behind the tool(s) 100.

Fig. 16f — Fig. 16j are schematic illustrations illustrating various topologies in relation to different combinations, in a tool assembly according to the second aspect of the present invention, of number and positions of tools and number and positions of support wheels or rollers arranged at least partly in front of the tool 100.

In each of the figures 16f - Fig. 16j it is seen that in relation the preferred direction of movement (X) of the tool 100, the support wheel(s) or rollers 306,306b is/are arranged in front of the tool(s)100.

The topologies representing combinations, in a tool assembly according to the second aspect of the present invention, of number and positions of tools and number and positions of support wheels as illustrated in any of Fig. 16a - 16e may be combined independently with the topologies illustrated in any of Fig. 16f — 16j.

It is seen in Fig. 17 that the deflector element 58 comprises a deflector element rear portion 58a and a deflector element front portion 58b. The deflector element 58b extends in a forward direction beyond a front portion 35 of the wing element 18, and the deflector element rear portion 58a extends in a rearward direction beyond a front portion 35 of the wing element 18.

It is seen that a lower portion 39 of the deflector element front portion 58b extends in a forward and upward direction from said front portion 35 of said wing element 18.

Fig. 17 also illustrates that a front end 39a of the lower portion 39 of the deflector element front portion 58b is being upwardly curved, and that the deflector element front portion 58b, is being tapered in a vertical direction so that the vertical extension of the deflector element front portion 58b diminishes in a direction from a rear position thereof to a front position thereof.

This embodiment of the tool 100 comprising a deflector element front portion 58b extending in a forward direction from said wing element 18,35 have proven beneficial when used in soil having a relatively large amount of vegetation.

Fig. 17 shows that a top element 63 is being arranged between a top rim of said first side portion 62 and a top rim of said second side portion 64 of said deflector element 58. Hereby, access from above into the interior of the deflector element 58 is sealed off.

It is also seen that the mounting means 54 are being arranged at the deflector element rear portion 58a as well as at said deflector element front portion 58b.

Fig. 18 - 23 are illustrations showing the tool of Fig. 17 as seen in an upper rear view, front view, cross-sectional view top plan view, lower front view, and bottom plan view, respectively.

Fig. 24 shows the tool 100 comprising wearing parts 80 which are forming part of the wing element 18 of the deflector element rear portion 58a and of the deflector element front portion 58b, and of the lower portion 39 of the deflector element front portion 58b (see hatched areas in Fig. 24). The wearing parts 80 are being detachable mounted onto said tool by being bolted thereon.

One of the wearing parts 80 is being a wearing part 80 constituting the lower portion 39 of the deflector element front portion 58b. This wearing part 80,39 is being accommodated in a space formed between a first side portion 62 and a second side portion 64 of the deflector element 58b.

Fig. 25 shows the tool assembly 300 comprising a tool carrier 304 in combination with a tool 100 according to the first aspect of the present invention. The tool 100 is being arranged on the tool carrier 304. As seen, the tool assembly 300 additionally comprises a first support wheel 306,306a and a second support wheel 306,306b which are being arranged on the tool carrier 304 so as to be able to freely rotate. The support wheels 306a are being suspended onto the tool carrier 304 in a wheel suspension 360, so that the wheel suspension can pivot in relation to the tool carrier 304.

A height adjustment means 362 in the form of a spindle arrangement having a handle 364 configured in such a way that turning said handle will affect a pivoting movement of the wheel/roller suspension 360, and thereby adjust the height level of the support wheels 306a in relation to the tool carrier 304.

A support wheel 306b is also being arranged on the tool carrier 304 at a position in front of at least a part of the tool 100.

In one embodiment of the tool assembly according to the second aspect of the present invention said one or more support wheels or rollers 306b is/are being suspended onto said tool carrier 304 in a wheel/roller suspension 366, wherein said wheel/roller suspension 366 is being configured to pivot in relation to said tool carrier 304.

Height adjustment means 368 in the form of a spindle arrangement having a handle 370 is configured in such a way that turning that handle will affect a pivoting movement of the wheel suspension 366, and thereby adjust the height level of the support wheel 306b in relation to the tool carrier 304.

Fig. 25 shows that the tool assembly comprises fastening means 332 in the form of pairs of bushings for attaching the tool assembly 300 to a tool assembly suspension 404 of an agricultural implement 400.

Fig. 26 shows that the tool assembly also comprises after-harrow(s) 314,314a, 314b which are being arranged on an after-harrow bracket 315 which is pivotally suspended on the tool carrier 304, so that it is able to freely pivot in relation to the tool carrier 304.

Fig. 27 is a side view illustrating the tool assembly of Fig. 25 and 26; and Fig. 28 is a cross- sectional view illustrating the tool assembly of Fig. 25, 26 and 27.

Fig. 29 is side view illustrating a section of an agricultural implement according to the third aspect of the present invention with a tool assembly in a raised transportation position.

Fig. 29 shows a section 402 of the frame of an agricultural implement 400. The section 402 comprises a tool assembly 300. The tool assembly is being suspended on the frame section 402.

The tool assembly suspension comprises a parallelogram frame 412 having a front end 414 with two connection points 416 and a rear end 418 with two connection points 416. The front end 414 of the parallelogram frame is being connected to the frame section 402 of the agricultural implement 400. Additionally, the rear end 418 of the parallelogram frame is being connected to the tool assembly 300, namely to bushings of its fastening means 332.

As seen, the agricultural implement 400 comprises lifting means 420 in the form of a hydraulic actuator 422 for changing the vertical position of the tool assembly 300 in relation to the frame 402 of the agricultural implement 400. Fig. 29 shows that in its transport configuration the tool 100 of the tool assembly 300 is being raised above the ground level or the surface of the soil 4.

Fig. 30 is side view showing the agricultural implement of Fig. 29 in a lowered, working position.

Fig. 30 shows that in its working configuration the tool 100 of the tool assembly 300 is being lowered below the ground level or the surface of the soil 4 so as to be able to spread manure 2 below that surface 4.

Fig. 31 is a perspective view illustrating the tool of Fig. 2 as seen in an upper front view, however in an embodiment having the distributor plate omitted.

This embodiment corresponds otherwise to the embodiments of the tool appearing in any of Fig. 1 - 16j.

Fig. 32 is a perspective view illustrating the tool of Fig. 18 as seen in an upper rear view, however in an embodiment having the distributor plate omitted.

This embodiment corresponds otherwise to the embodiments of the tool appearing in any of Fig. 16a - 30.

Omitting the distributor plate in the tool 100 may be particularly suitable for spreading manure in relatively hard soil or in relatively dry and hard soil, wherein the delivered manure has less tendency to spread soil, compared to the situation in respect of a relatively soft or in respect of a relatively wet and soft soil.

It should be understood that all features and achievements discussed above and in the appended claims in relation to one aspect of the present invention and embodiments thereof apply equally well to the other aspects of the present invention and embodiments thereof.

List of reference numerals

2 Manure

4 Surface of soil

6 Soil

7 Area of stirred up soil mixed with delivered manure

8 Leading portion of tool

10 Trailing portion of tool

12 Delivery tube of tool

14 First opening of delivery tube

16 Second opening of delivery tube

18 Wing element of tool

20 Distributor plate for distributing manure

22 Portion of distributor plate arranged below second opening of delivery tube

24 Major axis of oval opening of delivery tube

26 Minor axis of oval opening of delivery tube

28 Delivering direction of delivery tube

30 Center portion of distributor plate

32 Midpoint of first opening of delivery tube

34 Midpoint of second opening of delivery tube

35 Front portion of wing element

36 First wing element part

38 Second wing element part

39 Lower portion of deflector element front portion

39a Front end of lower portion of deflector element front portion

40 First extreme lateral portion of wing element

42 First soil cavity forming element

44 Lower surface of wing element

46 Second extreme lateral portion of wing element

48 Second soil cavity forming element

50 Front edge of distributor plate 52 Rear end portion of distributor plate

54 Mounting means for mounting tool on a mounting bar

56 Throgh-going holes of mounting means

58 Deflector element

58a Deflector element rear portion

58b Deflector element front portion

60 Front portion of deflector element

62 First side portion of deflector element

63 Top element arranged between top rim of first side portion and second side portion deflector element

64 Second side portion of deflector element

66 Interior space in deflector element

68 First mounting means of mounting means

70 Second mounting means of mounting means

72 Opening comprising second mounting means

74 Opening in bottom part of tool

76 Bottom part of tool

80 Detachable wearing part of tool

100 Tool

300 Tool assembly

302 Mounting bar of tool assembly

303 One end of mounting bar

304 Tool carrier

306 Support wheel or roller

306a Support wheels or rollers at rear of tool assembly

306b Support wheels or rollers at front of tool assembly308 Cutting disc

310 Cutting disc bracket

312 Height adjustment means for cutting disc

314 After-harrow

314a, 314b After-harrow

315 Articulating after-harrow bracket 316 Spring suspension for after-harrow

318 Mounting bar holder

320 Vertically arranged tube of mounting bar holder

322 Upper of vertically arranged tube

324 Open lower end of vertically arranged tube

326 Female thread of mounting bar

328 Threaded rod of mounting bar holder

330 Handle of threaded rod

332 Fastening means of tool assembly

334 Bushing of fastening means

360 Wheel/roller suspension for wheel/roller at rear of tool assembly

362 Height adjustment means for adjusting height of wheel/roller at rear of tool assembly

364 Handle of height adjustment means

366 Wheel/roller suspension for wheel/roller at front of tool assembly

368 Height adjustment means for adjusting height of wheel/roller at front of tool assembly

370 Handle of height adjustment means

400 Agricultural implement

402 Frame of agricultural implement

402a Middle frame segment of agricultural implement

402b, 402c Side frame segment of agricultural implement

404 Tool assembly suspension og agricultural implement

406 Manure distributing device of implement

408 Inlet opening of manure distributing device

410 Outlet opening of manure distributing device

412 Parallelogram frame of tool assembly suspension

414 Front end of parallelogram frame

416 Connection point of parallelogram frame

418 Rear end of parallelogram frame 420 Lifting means of agricultural implement for lifting tool assembly

422 Hydraulic actuator for lifting and lowering frame section

424 Supporting wheels

X Longitudinal direction of tool Y Transversal direction of tool

Claims

1. A tool (100) for supplying and distributing manure (2) below the surface (4) of soil (6) in an agricultural field, wherein said tool in the orientation intended during use is having a leading portion (8) and a trailing portion (10), wherein the direction from said trailing portion to said leading portion is defining a longitudinal direction (X) of said tool, and wherein a transversal direction (Y) of said tool is being defined as a lateral direction perpendicular to said longitudinal direction (X); wherein said tool comprises:

-a delivery tube (12) for delivering manure to the soil, said delivery tube comprises a first opening (14) for receiving manure and an opposite, second opening (16) for expelling manure from said delivery tube, wherein said first opening (14) is being arranged above said second opening (16);

- a wing element (18) for creating a downward acting force upon being moved through soil;

- a distributor plate (20) for distributing manure in a horizontally oriented direction upon directing manure thereto from a position above said distributor plate (20); wherein at least a portion (22) of said distributor plate (20) is being arranged below said second opening (16) of said delivery tube (12).

2. A tool (100) according to claim 1, wherein said delivery tube (12) is having an orientation in relation to said distributor plate (20), which is essentially perpendicular to said distributor plate.

3. A tool (100) according to claim 1 or 2, wherein said delivery tube (12) is having an extension between said first opening (14) and said second opening (16) of 150 - 400 mm, such as 200 - 350 mm or 250 - 300 mm.

4. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) is having a cross-sectional area selected from the ranges of 10 - 160 cm², such as 20 - 150 cm², for example 30 - 140 cm², e.g. 40 - 130 cm², such as 50 - 120 cm², for example 60 - 110 cm², such as 70 - 100 cm²or 80 - 90 cm².

5. A tool (100) according to any of the preceding claims, wherein said first opening (14) of said delivery tube (12) is being circular and is having an inner diameter of 35 - 100 mm, such as 40 - 90 mm, for example 50 - 80 mm or 60 - 70 mm.

6. A tool (100) according to any of the preceding claims, wherein the inner cross-sectional area of said first opening (14) of said delivery tube (12) is smaller than the inner cross- sectional area of said second opening (16) thereof.

7. A tool (100) according to any of the preceding claims, wherein said second opening (16) of said delivery tube is having an oblong shape, such as an oval shape or a rectangular shape, thereby defining a major axis (24) and a minor axis (26) of said opening, said major axis (24) and said minor axis (26) are being perpendicular to each other, wherein the ratio of magnitude of the minor axis to magnitude of the major axis is selected from the ranges of 0.30 - 0.95, such as 0.35 - 0.90, for example 0.40 - 0.85, for example 0.45 - 0.80, e.g. 0.50 - 0.75, such as 0.55 - 0.70 or 0.60 - 0.65.

8. A tool (100) according to claim 7, wherein said delivery tube (12) is being arranged in said tool in such a way that said major axis (24) is being aligned in a direction essentially parallel to said longitudinal direction (X) or is being aligned in a direction essentially perpendicular to said longitudinal direction (X).

9. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) is being arranged in relation to said distributor plate (20) in such a way that a manure delivery direction (28) of said delivery tube (12) points to a center portion (30) of said distributor plate (20), wherein said manure delivery direction (28) is being defined as the direction between a midpoint (32) of said first opening (14) and a midpoint (34) of said second opening (16) of said delivery tube (12).

10. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) at its first opening (14) comprises a manifold having two, three or more connection pipes for receiving manure from two, three or more manure delivering hoses.

11. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) at its second opening (16) comprises a detachable nozzle, such as a rubber nozzle.

12. A tool (100) according to any of the preceding claims, wherein at least part of said wing element (18) is having a downward inclination, in relation to said distributor plate (20), when viewed in a forward pointing direction parallel to said longitudinal direction (X) of said tool.

13. A tool (100) according to claim (20), wherein the inclination angle of at least said part of said wing element (18) is selected from the ranges 1 - 30°, such as 2 - 29°, for example 3 - 28°, such as 4 - 27°, e.g. 5 - 26°, for example 6 - 25°, such as 7 - 24°, such as 8 - 23°, for example 9 - 22°, for example 10 - 21°, such as 11 - 20°, such as 12 - 19°, for example 13 - 18°, such as 14 - 17° or 15 - 16°.

14. A tool (100) according to any of the preceding claims, wherein said wing element (18) is being symmetric around a vertical plane which is parallel to said longitudinal direction (X) and perpendicular to said transversal direction (Y).

15. A tool (100) according to claim 14, wherein said wing element (18) comprises a first wing element part (36) and a second wing element part (38), wherein said first wing element part (36) and said second wing element part (38) are being arranged in a swept-back wing configuration.

16. A tool (100) according to any of the preceding claims, wherein said wing element (18) at a first extreme lateral portion (40) thereof comprises a first soil cavity forming element (42) arranged at a lower surface (44) thereof, and wherein said wing element (18) at a second extreme lateral portion (46) thereof comprises a second soil cavity forming element (48) arranged at a lower surface (44) thereof.

17. A tool (100) according to claim 16, wherein said first elongate soil cavity forming element (42) and/or said second elongate soil cavity forming element (48) is/are being aligned in a direction which is essentially parallel to a vertical plane comprising said longitudinal direction (X).

18. A tool (100) according to any of the preceding claims, wherein said wing element (18) is having a maximum width, as measured in a direction parallel to said transversal direction (Y), of 200 - 650 mm or more, such as 250 - 600 mm, e.g. 300 - 550 mm, for example 350 - 500 mm or 400 - 450 mm.

19. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) is being arranged in relation to said wing element (18) in such a way that no portion of said delivery tube (12) extends further rearward than the most rearward portion of said wing element (18).

20. A tool (100) according to any of the preceding claims, wherein said delivery tube (12) is being arranged at central position, in relation to said transversal direction (Y), of said wing element (18).

21. A tool (100) according to any of the preceding claims, wherein at least part of said second opening (16) of said delivery tube (12) is being arranged at a level below at least a portion of said wing element (18); or at a level above at least a portion of said wing element (18), or at a level corresponding to a portion of said wing element (18).

22. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having an essential flat shape.

23. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having an orientation which is essentially parallel to said longitudinal direction (X).

24. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having a front edge (50), wherein said front edge (50) is being fastened, such as by welding, to a lower surface (44) of said wing element (18).

25. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having a maximum width, in said transversal direction (Y), selected from the ranges of 10 - 50 cm, such as 15 - 45 cm, e.g. 20 - 40 cm or 25 - 35 cm.

26. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having a maximum length, in a said longitudinal direction (X), selected from the ranges of 10 - 35 cm, such as 15 - 30 cm or 20 - 25 cm.

27. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is being arranged in relation to said delivery tube (12) in such a way that the minimum distance between said distributor plate (20) and said second opening (16) of said delivery tube (12) is being selected from the ranges of 20 - 100 mm or more, such as 25 - 90 mm, e.g. 30 - 85 mm, such as 35 - 80 mm, such as 40 - 75 mm , for example 45 - 70 mm, such as 50 - 65 mm or 55 - 60 mm.

28. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is having an arched rear end portion (52).

29. A tool (100) according to any of the preceding claims, wherein said distributor plate (20) is being connected to said wing element (18), such as by welding.

30. A tool (100) according to any of the preceding claims, wherein said tool comprises a mounting means (54) for mounting said tool onto a mounting bar (302) of a tool carrier (304) of a tool assembly 300.

31. A tool (100) according to claim 50, wherein said mounting means (54) comprises one or more through-going holes (56) for bolting that tool (100) onto said mounting bar (302) of said tool carrier (304) of said tool assembly (300).

32. A tool (100) according to any of the preceding claims, wherein said tool additionally comprises a deflector element (58) for deflecting soil when being moved through that soil, wherein said deflector element (58) is being arranged in front of said delivery tube (12).

33. A tool (100) according to claim 32, wherein said deflector element (58) extends in an upward direction from said wing element (18).

34. A tool (100) according to any claims 32 or 33, wherein said deflector element (58) is being connected to said wing element (18), such as by being welded thereto.

35. A tool (100) according to any of the claims 32 - 34, wherein said deflector element (58) comprises a front portion (60) which is being arranged between a first side portion (62) and a second side portion (64), wherein said front portion (60) is being tapered in a forward pointing direction.

36. A tool (100) according to claim 35, wherein said front portion (60) of said deflector element (58) extends upward from said wing element (18) at a front portion (35) thereof, optionally in such a way, that said front portion (60) essentially does not extent, in a forward direction, beyond the extension, in a forward direction, of said wing element (18).

37. A tool (100) according to any of the claims 32 - 35, wherein said deflector element (58) extends in a forward direction beyond a front portion (35) of said wing element (18); thereby making said deflector element (58) comprise a deflector element rear portion (58a) and a deflector element front portion (58b); wherein said deflector element rear portion (58a) extends rearward from said front portion (35) of said wing element (18); and wherein said deflector element front portion (58b) extends forward from said front portion (35) of said wing element (18).

38. A tool (100) according to claim 37, wherein said deflector element front portion (58b) extends, in a forward direction, beyond said front portion 35 of said wing element (18) by a distance of 20 - 100 cm or more, such as 25 - 75 cm, for example 30 - 65 cm, e.g. 35 - 60 cm, for example 40 - 55 cm or 45 - 50 cm

39. A tool (100) according to claim 37 or 38, wherein a lower portion (39) of said deflector element front portion (58b) extends in a forward and upward direction from said front portion (35) of said wing element (18).

40. A tool (100) according to any of the claims 37 - 39, wherein a front end (39a) of said lower portion (39) of said deflector element front portion (58b) is being upwardly curved.

41. A tool (100) according to any of the claims 37 - 40, wherein said deflector element front portion (58b), is being tapered in a vertical direction so that the vertical extension of said deflector element front portion (58b) diminishes in a direction from a rear position thereof to a front position thereof.

42. A tool (100) according to any of the claims 35 - 41, wherein a top element (63) is being arranged between a top rim of said first side portion (62) and a top rim of said second side portion (64) of said deflector element (58), thereby at least partly sealing off access, from above, into the interior of said deflector element (58).

43. A tool (100) according to any of the claims 30 - 42, wherein said deflector element (58) comprises said mounting means (54) for mounting said tool (100) onto a mounting bar (302) of a tool assembly (300).

44. A tool (100) according to any of the claims 37 - 43, wherein said mounting means (54) is/are being arranged at said deflector element rear portion (58a) and/or at said deflector element front portion (58b).

45. A tool (100) according to any of the claims 32 - 44, wherein said deflector element (58) is being hollow, thereby forming an interior space (66) in said deflector element (58).

46. A tool (100) according to any of the claims 43 - 45, wherein said mounting means (54) comprises first mounting means (68) and second mounting means (70) for collectively mounting said tool (100) onto a mounting bar (302) of a tool assembly (300); wherein said first mounting means (68) comprises one or two through-going holes (56) in said deflector element (58).

47. A tool according to claim 46, wherein said second mounting means (70) comprises an opening (74) in a bottom part (76) of said tool (100), thereby allowing said mounting bar (302), to be positioned in said tool (100) by being accommodated in said interior space (66) of said deflector element (58) and so as to engage with said first mounting means (68), such as via bolting said mounting bar (302) through said through-going holes (56) and so as to be engaged with said opening (74) of said second mounting means (70).

48. A tool (100) according to claim 47, wherein said second mounting means (70) comprises said opening (74) in said wing element (18) and/or in said deflector plate (20), wherein said opening (74) is configured for accommodating a lower end of said mounting bar (302) of said tool assembly (300).

49. A tool (100) according to any of the preceding claims, wherein said tool comprises one or more exchangeable wearing parts (80), wherein one or more of said one or more wearing parts is forming part of said tool, such as forming part of said wing element (18), of said deflector element (58) such as of said deflector element rear portion (58a) or of said deflector element front portion (58b), of said lower portion (39) of said deflector element front portion (58b); wherein one or more of said one or more wearing parts (80) are being detachable mounted onto said tool, such as by being bolted thereon.

50. A tool (100) according to claim 49, wherein one of said exchangeable wearing parts (80) is being a wearing part (80) constituting said lower portion (39) of said deflector element front portion (58b), wherein said wearing part (80,39) is being configured to be accommodated in a space formed between a first side portion (62) and a second side portion (64) of said deflector element (58).

51. A tool (100) according to one or more of the preceding claims, wherein in said tool, said distributor plate (20) is being omitted.

52. A tool (100) according to claim 51, wherein said tool is a tool for supplying and distributing manure (2) below the surface (4) of soil (6) in an agricultural field, wherein said tool in the orientation intended during use is having a leading portion (8) and a trailing portion (10), wherein the direction from said trailing portion to said leading portion is defining a longitudinal direction (X) of said tool, and wherein a transversal direction (Y) of said tool is being defined as a lateral direction perpendicular to said longitudinal direction (X); wherein said tool comprises:

- a wing element (18) for creating a downward acting force upon being moved through soil.

53. A tool assembly (300) comprising a tool carrier (304) in combination with one or more tools (100) according to any of the preceding claims, wherein said one or more tools (100) is/are being arranged on said tool carrier (304), said tool assembly (300) additionally comprises one or more support wheels or rollers (306) which is/are being arranged on said tool carrier (304) so as to be able to freely rotate.

54. A tool assembly (300) according to claim 53, wherein said tool carrier (304) in respect of one or more of said tools (100) additionally comprises a mounting bar (302), wherein said tool (100) is being suspended onto said mounting bar (302).

55. A tool assembly (300) according to claim 54, wherein said tool carrier (304) comprises a mounting bar holder (318) which comprises a vertically arranged tube (320) having an upper end (322) and an open lower end (324), wherein the dimensions and geometry of said mounting bar (302) and of said mounting bar holder (318) are adapted to each other in such a way that said mounting bar (302) can be inserted into said open lower end (324) of said mounting bar holder (318) and thereby hold said mounting bar (302) and hence said tool (100) in place.

56. A tool assembly (300) according to claim 54 and/or 55, wherein said mounting bar (302) in its one end (303) comprises a female thread (326), and wherein said mounting bar holder (318) comprises a threaded rod (328) which is being rotably mounted at said upper end (322) of said mounting bar holder, wherein the thread of said threaded rod is adapted to the thread of said female tread (326) and engaged therewith, thereby allowing adjustment of the vertical height of said mounting bar (302) and hence said tool (100) in relation to said tool carrier (304) by rotation of said threaded rod.

57. A tool assembly (300) according to claim 56, wherein said threaded rod (328) at its upper end is provided with a handle (330).

58. A tool assembly (300) according to any of the claims 53 - 57, wherein said one or more support wheels or rollers (306) is/are being support wheels or rollers (306a) which are being arranged at a position behind said one or more tools (100).

59. A tool assembly (300) according to claim 58, wherein said one or more support wheels or rollers (306a) is/are being suspended onto said tool carrier (304) in a wheel/roller suspension (360), wherein said wheel/roller suspension (360) is being configured to pivot in relation to said tool carrier (304).

60. A tool assembly (300) according to claim 59, wherein said wheel/roller suspension (360) additionally comprises height adjustment means (362), such as being in the form of a spindle arrangement having a handle (364) configured in such a way that turning said handle will effect a pivoting movement of said wheel/roller suspension (360a), and thereby adjust the height level of said support wheels or rollers (306a) in relation to said tool carrier (304).

61. A tool assembly (300) according to any of the claims 53 - 60, wherein said one or more support wheels or rollers (306) is/are being support wheels or rollers (306b) which is/are being arranged at a position in front of at least a part of said one or more tools (100).

62. A tool assembly (300) according to claim 61, wherein said wheels or rollers (306b) is/are being arranged in front of said wing element (18) of said tool (100), optionally in front of any part of said tool (100).

63. A tool assembly (300) according to claim 61 or 62, wherein said one or more support wheels or rollers (306b) is/are being suspended onto said tool carrier (304) in a wheel/roller suspension (366), wherein said wheel/roller suspension (366) is being configured to pivot in relation to said tool carrier (304).

64. A tool assembly (300) according to claim 63, wherein said wheel/roller suspension (366) additionally comprises height adjustment means (368), such as being in the form of a spindle arrangement having a handle (370) configured in such a way that turning said handle will effect a pivoting movement of said wheel/roller suspension (366), and thereby adjust the height level of said support wheels or rollers (306b) in relation to said tool carrier (304).

65. A tool assembly (300) according to any of the claims 53 - 64, wherein one or more of said one or more support wheels or rollers (306) is/are wheel(s) comprising a hub and a rim surrounded by a tire, such as rubber tire.

66. A tool assembly (300) according to any of the claims 53 - 65, wherein said tool assembly comprises one and only one tool (100) and one and only one support wheel or roller (306), such as one and only one support wheel or roller (306a), or one and only one support wheel or roller (306b).

67. A tool assembly (300) according to any of the claims 53 - 66, wherein said tool assembly comprises two, three or more tools (100) and one and only one support wheel or roller (306), such as one and only one support wheel or roller (306a), or one and only one support wheel or roller (306b).

68. A tool assembly (300) according to any of the claims 53 - 67, wherein said tool assembly comprises one and only one tool (100) and two or three support wheels or rollers (306), such as two or three support wheels or rollers (306a), or two or three support wheels or rollers (306b).

69. A tool assembly (300) according to any of the claims 53 - 68, wherein in respect of one or more of said one or more support wheels or rollers (306), said support wheels or rollers (306) is having an outer diameter of 20 - 75 cm, such as 25 - 70 cm, e.g. 30 - 65 cm, such as 35 - 60 cm, for example 40 - 55 com or 45 - 50 cm.

70. A tool assembly (300) according to any of the claims 53 - 69, wherein in respect of one or more of said one or more support wheels or rollers (306), said support wheels or rollers (306) is having a width of 10 - 50 cm, such as 12 - 45 cm, such as 15 - 40 cm, for example 20 - 35 cm or 25 - 30 cm.

71. A tool assembly (300) according to any of the claims 53 - 70, wherein said tool assembly in respect of one or more of said tools (100), such as in respect of all said tools, additionally comprises a cutting disc (308) for cutting plant residues or the like which are being present in the soil, wherein at least part of said cutting disc (308), preferably the entire portion of said disc is being arranged at a position in front of said tool (100).

72. A tool assembly (300) according to claim 71, wherein in respect of one or more of said cutting discs (308), said cutting disc is having a circular circumference, or a scalloped or notched circumference, or a waved circumference.

73. A tool assembly (300) according to claim 71 or 72, wherein in respect of one or more of said cutting discs (308), said cutting disc is being arranged on said tool carrier (304) in a way that allows free rotation of said cutting disc (308).

74. A tool assembly (300) according to any of the claims 71 - 73, wherein in respect of one or more of said cutting discs (308), said cutting disc is being arranged in a cutting disc bracket (310) on said tool carrier (304).

75. A tool assembly (300) according to claim 74, wherein in respect of one or more of said cutting discs (308), said cutting disc bracket (310) comprises height adjustment means (312) for allowing heigh adjustment of the position of said cutting disc (308) in relation to said wheel or rollers (306).

76. A tool assembly (300) according to any of the claims 71 - 75, wherein said tool assembly comprises fastening means (332), such as one or two bushings (334) or pairs of bushings (334) for attaching said tool assembly (300) to a tool assembly suspension (404) of an agricultural implement (400).

77. A tool assembly (300) according to any of the claims 53 - 76, wherein said tool assembly in respect of one or more of said tools (100), such as in respect of all said tools, additionally comprises one or more after-harrows (314).

78. A tool assembly (300) according to claim 77, wherein in respect of one or more of said tools (100), said tool assembly comprises a first after-harrow (314a) arranged at a position corresponding to a first side in relation to said tool (100), and a second after-harrow (314b) arranged at a position corresponding to a second, opposite side in relation to said tool (100).

79. A tool assembly (300) according to claim 77 or 78, wherein one or more of said one or more after-harrows (314,314a, 314b) is/are being suspended on said tool carrier via a spring suspension (316).

80. A tool assembly (300) according to claim 577or 78, wherein said after-harrow(s)

(314,314a, 314b) is/are being arranged on an after-harrow bracket (315) which is pivotally suspended on said tool carrier (304), such as being able to freely pivot in relation to said tool carrier (304).

81. A tool assembly (300) according to claim 80, wherein said after-harrow bracket (315) comprises height adjustment means, wherein said height adjustment means (350) optionally comprises a chain or a cord suspending said after-harrow bracket (315) onto said tool carrier (304).

82. A tool assembly (300) according to any of the claims 77 - 81, wherein one or more of said one or more after-harrows (314,314a, 314b) is/are in the form of a wheel or disc which is being obliquely arranged on said tool carrier (304) in relating to the longitudinal direction of said tool(s).

83. An agricultural implement (400) for spreading manure in an agricultural field, wherein said implement comprises a frame (402) and a plurality of tool assemblies (300) according to any of the claims 41 - 62, wherein said tool assemblies (300) are being mounted on said frame (402).

84. An agricultural implement (400) according to claim 83, wherein in respect of any two adjacent tools (100) of said tool assemblies, the distance between centers of delivery tubes (12) of said tools (100) independently is selected from the ranges of 15 - 80 cm, such as 20 - 75 cm, e.g. 25 - 70 cm, for example 30 - 65 cm, such as 35 - 60 cm, e.g. 40 - 55 cm or 45 - 50 cm.

85. An agricultural implement (400) according to claim 83 or 84, wherein said agricultural implement comprises a manure distributing device (406), such as a manure distributing device comprising a macerator, and having an inlet opening (408) for allowing delivery of manure from a manure holding tank via a hose, and wherein said manure distributor comprises a plurality of outlet openings (410) for delivering manure to the delivery tubes (12) of said tools (100) of said tool assemblies (300).

86. An agricultural implement (400) according to claim 85, wherein said agricultural implement (400) comprises a plurality of hoses connecting said a plurality of outlet openings (410) to said delivery tubes (12) of said tools (100) of said tool assemblies (300).

87. An agricultural implement (400) according to any of the claims 84 - 86, wherein said agricultural implement (400) comprises one or more tool assembly suspensions (404) for suspending one or more of said tool assemblies (300).

88. An agricultural implement (400) according to claim 67, wherein in respect of said one or more tool assembly suspensions (404), said agricultural implement comprises a parallelogram frame (412) having a front end (414) with two connection points (416) and a rear end (418) with two connection points (416), wherein said front end (414) of said parallelogram frame is being connected to said frame (402) of said agricultural implement (400), and wherein said rear end (418) of said parallelogram frame is being connected to said tool assembly (300), such as to its bushings (334) of its fastening means (332).

89. An agricultural implement (400) according to claim 87 or 88, wherein in respect of said one or more tool assembly suspensions, said agricultural implement comprises lifting means (420), such as a hydraulic actuator for changing the vertical position of said tool assembly in relation to said frame (402) of said agricultural implement (400).

90. An agricultural implement (400) according to any of the claims 87 - 89, wherein in respect of said one or more tool assembly suspensions, said agricultural implement (300) comprises a spring having a first end which is connected to said frame (402) of said agricultural implement (400) and a second end which is connected to said tool assembly (300), thereby allowing exerting a force forcing said tool assembly (300) against the surface of the soil.

91. An agricultural implement (400) according to any of the claims 83 - 90, wherein said frame (402) comprises two or more frame sections (402a, 402b, 402c) which are configured to be pivotably suspended in relation to each other, and which are configured to be able to shift configuration, such as by means of one or more hydraulic actuators (422), between a work configuration, in which one or more of said two or more frame sections (402a, 402b, 402c) are folded down and a transport configuration, in which one or more of said two or more frame sections (402a, 402b, 402c) are raised.

92. An agricultural implement (400) according to claim 91 wherein said frame (402) comprises a fixed middle frame section (402a) and two side frame sections (402b, 402c), wherein said two side frame sections (402b) and (402c) are configured to be able to shift configuration, between said work configuration, in which said two side frame sections (402b, 402c) are folded down and said transport configuration, in which said two frame sections (402b, 402c) are raised in relation to said fixed middle frame section (402a).

93. An agricultural implement (400) according to any of the claims 83 - 92, wherein said implement comprises one or more supporting wheels (424).

94. An agricultural implement (400) according to any of the claims 83 - 93, wherein said implement (400) is being in the form of a self-propelled vehicle, optionally comprising a holding tank for manure, or wherein said agricultural implement (400) is in the form of a trailer to be connected to a self-propelled vehicle, wherein said agricultural implement (400) comprises connection means for being connected to said self-propelled vehicle.

95. An agricultural implement (400) according to any of the claims 83 - 94, wherein in respect of one or more tools (100) being arranged on said agricultural implement (400), such as in respect of each tool (100) being arranged on said agricultural implement, said agricultural implement (400) comprises a sowing device for planting seeds in the soil.

96. An agricultural implement (400) according to claim 95, wherein said sowing device comprises a hopper for accommodating seeds to be sown, a dosing unit for dosing a predetermined number of seed from said hopper, a delivery tube for delivering seeds, which have been dosed by said dosing device, to the soil, a shear for creating an opening in the soil and optionally also a shear for covering soil over seeds which have been sown in the soil by said sowing device.

97. An agricultural implement (400) according to claim 95 or 96, wherein said sowing device is being configured for sowing seeds at lateral positions corresponding to lateral positions of the manure (2) being delivered by said tool (100).

98. Use of a tool (100) according to any of the claims 1 - 52 for delivering manure (2) in an agricultural field.

99. Use according to claim 98, wherein said use is for delivering of manure (2) below soil surface level (4) of said agricultural field.

100. Use of a tool assembly (300) according to any of the claims 53 - 82 for delivering manure (2) in an agricultural field.

101. Use according to claim 100, wherein said use is for delivering of manure (2) below soil surface level (4) of said agricultural field.

102. Use of an agricultural implement (400) according to any of the claims 83 - 97 for delivering manure (2) in an agricultural field.

103. Use according to claim 102, wherein said use is for delivering manure below soil surface level (4) of said agricultural field.

104. A method for delivering and distributing manure (2) below soil surface level (4) in an agricultural field, said method comprising the steps of i) proving one or more tools (100) according to any of the claims 1 - 52; ii) delivering manure (2) to the first opening (14) of said delivery tube (16), iii) moving one or more of said one or more tools (100) through the soil of said agricultural field in such a way that said wing element (18) of said tool is being submerged in soil, thereby making said tool provide sub-soil delivery of manure (2) to said agricultural field.

105. A method according to claim 104, wherein step i) is performed by providing a tool assembly (300) according to any of the claims 53 - 82; and wherein step iii) is performed by moving said tool assembly (300) through the agricultural field in such a way that said one or more support wheel(s) (306) is/are supported on top of the surface (4) of the soil and in such a way that said one or more tools (100) is/are providing sub-soil delivery of manure (2) to the field.

106. A method according to claim 104 or 105, wherein step i) is performed by providing an agricultural implement (400) according to any of the claims 83 - 97, and wherein step iii) is performed by moving said agricultural implement (400) through the agricultural field in such a way that said tools (100) of said one or more tool assemblies (300) of said implement (400) is/are providing sub-soil delivery of manure (2) to the field.