DE102016003870B4 - Sowing machine and method for introducing plant seeds into a planting soil - Google Patents

Abstract

Sowing machine (10) for introducing plant seeds (12) into a planting soil (14), comprising a supporting frame (16) and at least one coulter (18) held on the supporting frame (16) for processing the planting soil (14), one of the coulters ( 18) assigned seed guiding means (20) for feeding and depositing the plant seeds (12) into the planting soil (14) processed with the seed coulter (18), and one aligned in one working direction (A) of the seed drill (10) in front of the seed coulter (18) working tine (22) held on the support frame (16) and projecting into the planting soil (14) in an operating position of the seed drill (10), characterized in that a section for working in on the section of the working tine (22) projecting into the planting soil (14) a displacer (28) formed below the plant soil surface (24) and a tunnel-shaped channel (26) is arranged, and wherein the working tine (22) is a bait guide designed for the placement of an animal bait (30) in the channel (26) ittel (32) is assigned.

Description

The invention relates to a seeder for introducing plant seeds into a plant soil according to the preamble of claim 1 and to a method for introducing plant seeds into a plant soil according to claim 12.

Seeders of the generic type are preferably used in order to bring seeds into a planting soil in a cost-saving and gentle manner. In contrast to conventional tillage by using a conventional plow, in which the soil is turned over a large area and is mechanically complex, sowing is carried out with a generic seeder without prior tillage immediately after harvesting or in the unprocessed waste land. Residues of the plant material from the preculture remain as mulch in the field. The sowing technology carried out with these seed drills is called direct sowing or drill sowing. With generic seeders, narrow furrows are worked into the planting soil, into which the seeds are deposited. Special devices such as chisel, cutting disc or cross slot shares are arranged on the seed drill for opening or slitting the planting soil. After the seed placement, the seed furrows are covered with soil. The soil only undergoes mechanical intervention in the actual seed rows.

The planting soil is thus processed very gently and only mechanically to a limited extent, which leads to the preservation of the soil fauna on the one hand and a significant reduction in processing times and working material costs on the other.

A problem that has not yet been solved satisfactorily, which is observed particularly in the case of drill sowing carried out with a generic seed drill, is the increased occurrence of mouse populations in the planting area, which due to the careful cultivation of the plant soil find improved living conditions in the processed plant soil and thus improved conditions for a disproportionate amount Propagation. Due to increased feeding damage to seeds and the root system of the growing plants, the increasing mouse population causes considerable economic damage in the areas ordered. Since the animals live in nest chambers and passage systems that are about 50 cm below the surface of the soil, the pest populations cannot be controlled significantly even with conventional plowing technology, which typically only intervenes 30 cm in the soil.

The currently only effective way to combat mouse populations in agriculture is the use of so-called laying shotguns. A lay flint essentially consists of a tube filled with lethal animal bait. An opening mechanism is provided at the foot of the flint, with which a limited number of animal baits can be placed in the ground. To release the poison bait, the opening shot is passed with the opening area to a mouse hole and the bait is placed in the mouse passageway after the opening of the laying shot. This method of pest control is very labor-intensive, since a large number of workers are required to equip the planting soil with sufficient poison baits. This method of fighting mice is very time-consuming and costly and therefore not economical. Particularly in the case of extensive areas, a large number of workers are required, which makes pest control using this method particularly uneconomical. A widespread application of poison baits, for example by mechanical litter application, cannot be seen as an alternative, since legal requirements exist that prohibit the above-ground placement of mouse baits.

The invention is an improvement of generic sowing machines, with which an automated placement of poison baits is made possible directly during sowing, whereby current legal positions regarding poison bait placement are taken into account.

Various generic seed drills are already known from the prior art. Out EP 0201047 A2 For example, a seed drill with a frame, a storage container and a seed coulter is known, with which seed furrows are incorporated into the planting soil and seeds or fertilizers are deposited in the seed furrows created.

Out DE 102004023087 A1 a generic seed drill for introducing seed into the soil is also known. As also provided in the seed drill according to the invention, the known seed drill can be designed as an attachment for a towing vehicle.

Another generic tillage machine for drill or direct sowing is out EP 0427154 B1 known. A seed drill is also of the generic type EP 1608214 B1 .

CN 2673062 Y describes an apparatus and a method for introducing plant seeds and fertilizers below the surface of the soil. For this purpose, a furrow is pulled into the planting soil with a plow element and seeds or fertilizers are deposited into the furrow via a channel. With the smoothing device reaching to the ground, the furrow behind the plow element is closed again.

DE 8708039 U1 describes a sowing device for sowing seeds with a loosening device for loosening at least one narrow soil strip and with a fertilizer for introducing fertilizer into the loosened soil strip, with a sowing device that successively opens the loosened soil strip, introduces the seed and closes the soil strip again.

Also the DE 102009006681 A1 deals with the introduction of seeds and fertilizers into the planting soil. For this purpose, a seeder is used which has a coulter and a furrow opening element assigned to the coulter for breaking up the soil. A fertilizer coulter is arranged in front of the coulter. The publication is concerned in particular with limiting the depth of penetration of the seed and fertilizer coulters arranged on the seed drill.

Out DE 69002501 T2 a seeder for introducing plant seeds into a planting soil is known, in which a working tine is arranged behind a coulter with which chemicals such as insecticides, herbicides and fungicides can be released to the soil.

The object of the present invention is to provide a seed drill of the generic type with a device for laying out animal baits below the surface of the plant soil during the sowing of the plant seeds.

The object is achieved by a seed drill with the features of claim 1. Advantageous refinements are specified in the subclaims.

According to the invention, a seeder for introducing plant seeds into a planting soil, comprising a support frame and at least one seed coulter held on the support frame for opening processing of the planting soil, is a seed guiding means assigned to the seed coulter for depositing the plant seeds in the planting soil processed with the seed coulter, and one in one Working direction of the seed drill in alignment in front of the coulter on the support frame, the working tine protrudes into the planting soil in an operating position of the seed drill, wherein a displacement body designed to incorporate a channel below the surface of the planting soil is arranged on the section of the working tine projecting into the planting soil, and wherein the Working tine is assigned a bait guiding means designed for the placement of an animal bait in the channel.

The working tine provided on the seed drill according to the invention, which is positioned in front of the sowing coulter in the working direction provided for the seed drill, ensures not only the positively guided movement of the displacer below the surface of the planting soil but also loosening of the soil area located locally behind the working tine, into which the seed is used the coulter is placed in the ground. The length of the working tine with the displacement body is usually chosen so that soil loosening can be carried out to a depth of 10 cm to 30 cm below the surface of the soil. The coulter works the soil surface in such a way that the seed can be placed, for example, about 3 - 4 cm below the soil surface. The working depths of the coulter and / or the working tine are preferably adjustable, so that the loosening depth or the seed placement depth can be adapted to the soil conditions and / or the seed to be sown. The displacement body is arranged on the working tine in such a way that the channel intended for the animal bait is formed below the seed deposited in the ground. The simultaneous formation of a channel for the placement of an animal bait and the introduction of seed into the planting soil is particularly advantageous in the seed drill according to the invention. This saves labor-intensive and time-consuming connection work for pest control after sowing with laying shotguns or the like.

The tunnel-shaped channel according to the invention forms a tube-like passage below the surface of the plant soil, into which pests such as mice can dig. When passing through the tunnel-shaped channel, the pests encounter the animal bait. The animal bait is protected against environmental influences in the underground channel. Since the channel is formed below the surface of the planting soil, the bait is neither washed out or washed away by rain on the surface, nor is the animal bait removed by wind. In addition, the underground discharge reduces the risk that the animal bait is inadvertently taken up by animals looking for food on the surface of the planting soil.

The animal bait is eaten by the mice looking for food in the planting area, which leads to an effective and species-appropriate pest control. Since a large part of the duct system and the nest areas of the mice are at a depth of more than 30 cm, the channel formed with the displacement body lies between the seeds and a large part of the mouse ducts. Mice that burrow to the bottom of the channel from the bottom or that burrow from the bottom towards the nest areas are likely to encounter the channel that has been baited with poison. The likelihood that a mouse will reach the channel equipped with bait is increased by the fact that the planting soil with the seed drill according to the invention is worked in strips so that strips of loosened earth and strips of solidified earth lie side by side in a processed soil area. The mouse will typically dig up or down in the areas of loosened soil, forcibly bumping into the canal stocked with animal bait. The mouse can run in the channel and quickly finds the bait.

According to the invention it is provided that the working tine with the displacement body arranged thereon and the coulter are held in alignment in the working direction provided for the seed drill on a support frame of the seed drill. Seen in the intended working direction of the seeder, the working tine and the coulter are in a row one behind the other. Thus, the channel created below the surface of the soil is worked into the soil below the seed deposited in the area of the coulter.

Depending on the size of the ground area to be worked or on the performance of the towing vehicle, several rows of working tines and coulters can be provided in parallel on the seed drill according to the invention. The arrangement of working tines and coulters on the seeder can be carried out in accordance with common patterns known from the prior art. With regard to the arrangement of working tines and coulters, particular attention is paid to EP 1 608 214 B1 Reference is made to which express reference is made to the technical details of the coulter and working tines as well as to the construction of a generic seed drill.

It goes without saying that the seeder can be equipped with its own drive for movement in the working direction. Alternatively or additionally, the seeder can have coupling elements for connection to a towing vehicle, such as a tractor or the like. The seeder can be designed to be self-supporting, for example with wheels that hold the support frame at a fixed or adjustable distance from the ground surface. Alternatively or additionally, it can be provided that the seed drill is carried in whole or in part by the towing vehicle.

As is usual with generic seed drills, height adjustment means can be provided on the seed drill, which are used, for example, for height adjustment of the working tine and / or the coulter or the seed and / or bait feed means. In this way, for example, the depth of penetration of the coulters into the soil or the placement depth of the plant seeds can be influenced and adjusted to the soil conditions or the type of plant. The depth of penetration of the working tine and thus the depth of the channel to be worked into the ground can also be adjusted using such height adjustment means.

In order to provide particularly good sliding properties of the displacement body when penetrating the floor area, the displacement body according to the invention can be approximately torpedo-shaped. This supports the most resource-efficient work possible when guiding through the ground. In addition to cultivating arable soil, the seeder can also be used to process and sow plant seeds in a plant substrate. For example, it is conceivable that the plant seeds should be placed in an artificial substrate instead of in a natural soil.

In one embodiment variant, it is contemplated that a feed line is connected to the torpedo-like, that is to say approximately tubular, displacement body, through which the animal bait can be guided into the channel. The animal bait is preferably located in a container on the seeder. The animal bait can be guided from the container to the bait guiding means by means of a metering device connected to the container. Analogously, a container and in particular also a metering device for storing and metering the seeds on the seeder can be provided.

The metering device can be actuated manually or automatically, for example via electrical, pneumatic or hydraulic drives. An automatically controlled dosing device can be controlled by a control device such as an on-board computer or the like. The dosing device doses the desired amount of bait, in particular pneumatically, via a line system to the displacement body for placement in the channel or, analogously, the seed via a line system in the ground. The control device can be assigned to the drill and arranged on the drill. Alternatively or additionally, it is conceivable that the metering device is controlled by means of a control device arranged on a towing vehicle provided for the seed drill. This control device arranged on the towing vehicle can be, for example, the on-board computer of the towing vehicle. By integrating it into a seeder that is used in various locations in arable farming, an electronic, for example speed-dependent, automatic introduction of the bait into the sewer is advantageous. It is therefore not necessary for additional operating personnel to travel in the area of the seed drill and to throw in the bait by hand. It is also possible to dispense with a simple, non-adjustable cellular wheel metering. Thanks to the electronically controlled dosing, the quantity and storage frequency can be adjusted without further ado.

In a variant, it is contemplated that the displacement body is tubular. As explained, it is particularly thought that the displacement body is shaped like a torpedo. The torpedo shape tapers to a point, rounded or hemispherical at its distal end, which is at the front and in the working direction of the seed drill. This improves the sliding properties when penetrating the soil. To protect against damage or excessive wear and tear due to collision with stones or other hard objects in the floor area, it is contemplated that the displacement body has a hardened surface, at least in the forehead area. It is contemplated, for example, that the surface is coated with a hard material such as a tungsten carbide ceramic or the like. Alternatively or additionally, the displacement body can be made at least in regions from a hard metal alloy or from a ceramic such as tungsten carbide.

To reduce weight, the displacement body can be hollow at least in some areas. Instead of a crude or torpedo-like body, a spherical or partially spherical body is also conceivable as a displacement body.

For the storage of the animal bait in the immediate vicinity of the displacement body, it is contemplated that the bait guiding means comprises a line connector, in particular motion-coupled to the displacement body, wherein an animal bait guided through the line connector is guided into the channel formed by the displacement body.

In order to hold the pipe socket on the displacement body in a stable manner, the pipe socket can be connected to the displacement body in a cohesive manner, for example by welding. In a preferred embodiment, it is contemplated that the line connector opens into a cavity of the displacement body, the cavity being open on the underside of the displacement body, that is to say on its side facing away from the floor surface, so that the bait guided into the cavity into the Displacement body formed channel is stored. In this variant, it is provided that the opening of the cavity extends as far as the proximal rear end of the displacement body, so that the animal bait deposited on the channel floor remains in the channel when the displacement body is continued.

To protect against damage to the sinker by stones lying in the planting soil, which are caught by the sinker when the planting soil is being worked on, a stone protection can be provided on the working tine or on the sinker. In particular, it is contemplated that the displacement body is pivotally mounted on the working tine in an angular range about a pivot axis oriented transversely to the working direction. The pivot axis is in particular aligned horizontally or parallel to the floor surface. The working tine can in particular be flat, in particular plate-shaped, the narrow sides of the working tine being aligned along the working direction. The flat sides of the working tine are aligned transversely to the working direction, which supports stable guidance of the working tine when penetrating the planting soil. It is provided here that the pivot axis of the displacement body is aligned perpendicular to the flat side of the working tine.

Since a seeder generally works at a higher speed on inhomogeneous arable land, which may contain stones and other obstacles in the subsoil, stone protection of the displacement body according to the invention is particularly advantageous. This stone safety device can preferably be designed with a joint between the guide tines and the torpedo, since in the event of hitting an obstacle the guide tine dodges backwards and upwards. Without such a joint, there is a risk that the displacement body swivels from the horizontal position into a vertical position and thus gets caught on the obstacle. This can damage or tear off the bait feed, for example a hose.

The displacement body is preferably articulated on the working tine such that the displacement body e.g. is rotatably mounted on the working tines in an angle range in a plane transverse to the ground surface or in a plane transverse to the surface spanned by the working direction of the seed drill and the working tines. In addition, it is thought that the working tine is pivotally mounted on the support frame. In the event of a collision of the displacement body or the working tine with a stone lying in the planting soil, the working tine and / or the displacement body can deflect away from the working direction and swing away. Due to the articulated arrangement of the displacement body on the working tine, the displacement body can pivot parallel to the working direction in the direction of the ground surface when the working tine is swung out. This prevents high mechanical loads on the seed drill, which could damage or destroy the work equipment.

In one embodiment of the invention, it is contemplated that the seeder includes a seed container for storing the plant seeds, which is connected to that of the coulter via a feed line assigned seed management means is connected. Analogously to this, it can be provided in a further preferred embodiment of the invention that the seeder comprises an animal bait container for storing the animal bait, which is connected via a feed line to the bait guidance means assigned to the working tine. Alternatively, it can be provided that containers for seed or animal bait are held on a towing vehicle, in this embodiment a line system that can be connected to the container is used to forward the seed or animal bait to appropriate feed means.

For a coordinated placement of plant seeds and / or animal baits in the planting soil, it is contemplated that the seeder includes at least one metering device which dispenses the plant seeds in metered quantities to the seed guiding means assigned to the seed coulter and / or the animal baits to the bait guiding means assigned to the working tine. The animal bait can be in solid or liquid form. With the help of the dosing device, individual portions can be dosed or a mass flow can be set.

For the controlled delivery of resources such as seed or animal bait to the seed guiding means and / or to the bait guiding means, it is contemplated that the metering device can be controlled by means of an electronic control device.

When dosing the animal bait into the channel formed with the displacement body, it is contemplated that the dosing device delivers the bait in continuous dosing or at intervals in individual units.

In the case of a timed metering, the animal bait is deposited in a pile in the channel. Deposits are formed in the channel at intervals depending on the set metering cycle. Depot formation is advantageous because the animal bait can become ineffective when exposed to soil moisture. In the heap-shaped depot of internal animal baits, external baits protect against the influence of moisture. This means that internal baits remain effective even if external baits have already lost their effectiveness due to moisture. The effectiveness of animal baits can thus be extended overall. Continuous application can be advantageous to cover longer distances in the channels and thus increase the likelihood of pests finding the bait. The preferred dosing method can be selected, for example, depending on the nature of the soil or the type of bait.

In a possible embodiment of the seed drill according to the invention, it is also contemplated that the seed drill comprises a pneumatic transport system by means of which the plant seed and / or the animal bait is pneumatically transported in the area of the seed drill, at least in some areas. It is preferably provided that the animal bait and / or the plant seeds are placed pneumatically in the planting soil.

Particularly good results in the formation of the underground channel and the placement of the animal bait can be achieved if the displacement body is pressurized when the channel is formed, so that the channel is formed below the plant soil surface at an overpressure. In a preferred embodiment, the animal bait is guided with compressed air to a storage opening in the displacement body. The displacer is pressurized.

The bait is preferably led directly into a cavity or into a recess of the displacement body for binding into the bait channel, the cavity or the recess having an opening to the ground through which the bait is placed on the channel bottom. Experiments without pressurizing the displacer have shown that the bait deposit opening of the displacer is sometimes clogged with soil. This interferes with the application of the bait and impairs the tunnel formation. Particularly good results in the placement of the bait and the formation of the sewer tube could only be achieved when using excess pressure.

According to the invention is also a method for introducing plant seeds into a planting soil, in particular with a seeder according to one of the preceding claims, characterized by the steps: incorporating a channel below the surface of the planting soil by means of a displacement body attached to a working tine; Introducing an animal bait into the channel worked into the planting soil by means of the displacement body; Working the planting soil with a coulter at a distance in the working direction behind the displacer; Placing plant seeds in the planting soil worked with the coulter. When introducing the animal bait, it is provided in particular that the animal bait is placed in the channel at a distance behind the end faces of the displacement body forming the channel. When laying down the plant seeds, it is particularly provided that the seeds are placed behind the coulter at a distance in the working direction.

Advantages and preferred configurations of the method according to the invention result also from the statements made for the seed drill according to the invention.

In a further development of the method, a further method step can be provided, namely: smoothing the planting soil behind the working tine and / or behind the coulter.

• 1 eine vereinfachte schematische Darstellung einer erfindungsgemäßen Sämaschine,
• 2 eine schematische Prinzipdarstellung der erfindungsgemäßen Arbeitszinke mit Verdrän¬gungskörper und Säschar in einer Betriebsstellung der Sämaschine,
• 3 eine schematische Prinzipdarstellung einer Eindosierung von Tierködern in den mit dem Verdrängungskörper ausgebildeten Kanal unterhalb der Planzbodenoberfläche, und
• 4. eine schematische Darstellung von Tierköderdepots in einem ausgebildeten Kanal.

Embodiments of the invention are shown in the following figures. Show it:

• 1 a simplified schematic representation of a seed drill according to the invention,
• 2nd 2 shows a schematic basic illustration of the working tine according to the invention with displacement body and coulter in an operating position of the seed drill,
• 3rd is a schematic diagram of a dosing of animal bait in the channel formed with the displacement body below the surface of the plank, and
• 4th . a schematic representation of animal bait depots in a trained channel.

1 is a highly simplified schematic sketch of a seed drill according to the invention 10th . The seeder 10th has a support frame 16 on a coulter 18th and a working tine 22 are supported. The support frame 16 is shown interrupted to indicate that both the coulter 18th as well as the working tine 22 movable, in particular height adjustable, on the support frame 16 can be arranged. Correspondingly, height adjustment means (not shown) on the seed drill 18th be provided with which the coulter 18th and / or the working tines 22 height adjustable on the seeder 10th are supported. The support frame 16 is in the illustrated embodiment of idler wheels 58 carried. As explained in the associated description section, the seeder can 10th with the help of carrying wheels 58 be self-supporting. Alternatively or additionally, it can be provided that the seeder 10th is wholly or partly carried by a towing vehicle (not shown).

In 1 is a seeder 10th with a pair of working tines 22 and coulter 18th pictured. As explained in the description, the seed drill according to the invention can 10th have a plurality of such pairs, the pairs being arranged in particular in parallel rows on the seeder.

For the motion-linked connection of the seed drill 10th a coupling can be attached to a towing vehicle 60 on the support frame 16 be provided. As is common with agricultural vehicles, a clutch can be used 60 be provided via the mechanical power to the seed drill by means of mechanical rotation of coupling components 10th is transferable. This can be used, for example, on the seed drill 10th Arranged actuators or generators are driven (not shown).

As in 1 the working tine is clearly visible 22 in the working direction A the seeder 10th in front of the coulter 18th on the support frame 16 supported. The coulter 18th is assigned a seed management agent 20th on the seeder 10th arranged with the seed in the with the coulter 18th machined floor 14 is filed. At the lower end of the working tine 22 is a displacement body according to the invention 28 arranged with which a channel 26 can be introduced into the ground. The sinker 28 and the working tine 22 is assigned at 32 the bait control agent 32 shown. The bait guide 32 is in this example directly to the sinker 28 connected.

As in 1 indicated, the working tine 22 pivotable on the support frame 16 be supported. This is a pivoting of the working tine 22 against the direction of work A enables. In the event of a collision of the working tine 22 or the sinker 28 with a stone lying in the soil, the working tine can move backwards towards the coulter 18th dodge to prevent high mechanical stress on the work equipment and thus damage to the components.

2nd shows the working tine according to the invention 22 with the sinker 28 together with the coulter 18th out 1 in a further detailed schematic diagram during tillage during a relative movement of the seed drill 10th opposite the planting soil 14 in the working direction A . In 2nd is particularly recognizable, like that of the working tine 22 worn displacement bodies 28 below the ground surface 24th through the solid floor area 52 is guided and the channel 26 incorporated into the soil. For the introduction of the channel 26 in the planting soil 14 soil is displaced and compacted in such a way that a stable channel 26 is produced. The channel 26 is approximately tunnel-shaped. The channel 26 forms a stable passage for mice and a shelter for the animal bait.

About the bait feed 32 , which in the present example is a pipe socket 34 and a supply line 44 includes animal bait 30th in the with the sinker 28 trained channel 26 filed. The pipe socket 34 is like this on the sinker 28 connected that the fed animal bait 30th in training the channel 26 can be placed on the channel floor and during the further movement of the displacement body 28 on the bottom of the canal 26 remains lying. For that the animal bait falls 30th an opening at the bottom of the sinker 28 , wherein the opening of the displacer extends to its rear end so that the animal bait 30th after storage in the canal undisturbed 26 remains lying.

The sinker 28 is by means of a swivel axis 36 swiveling on the working tine 22 stored. The rotary bearing of the sinker 28 on the working tine 22 allows a directed evasion of the sinker 28 together with a rearward pivoting of the working tine in the opposite direction to the working direction in the event of a collision with a hard object such as a stone or the like. In the event of a collision with a stone, the working tine is provided 22 back towards the coulter 18th evades and the displacement body 28 up towards the ground surface 24th leads. Due to the rotating arrangement of the displacement body 28 on the swivel axis 36 the working tine 22 becomes the displacer 28 roughly parallel to the ground surface 24th shifted as soon as the working tine 22 back towards the coulter 18th evades. This means that high mechanical forces can be avoided, which are rigid on the working tine 22 arranged displacement body 28 would arise if the working tine 22 dodges backwards in the event of a collision with a stone.

As shown, the bait guide can 32 a pipe socket 34 and a supply line 44 include with which the animal bait 30th from a container 42 in the channel 26 to be led. The feeder 44 is preferably designed to be flexible, for example as a flexible hose line, around an undisturbed pivoting of the displacement body 28 relative to the working tine 22 to enable.

As in 2nd indicated, can on the container 42 a dosing device 48 be connected with the animal bait 30th in definable quantities in the feeder 44 can be delivered. As shown, a control device 50 be provided, the metering device 48 controls. Analogous to the introduction of the animal bait 30th in the channel 26 is a seed management agent 20th in the area of the coulter 18th provided with the plant seeds 12th from a container 38 in the one with the coulter 18th machined floor area 56 be filed. To the container 38 can also use a dosing device 46 for the metered delivery of seeds to the feeder 40 or the seed guiding agent 20th be connected.

In addition to guiding the sinker 28 has the working tine 22 also the function, the floor 52 before working with the coulter 18th to loosen. This will improve conditions for growing in the soil 14 filed plant seeds 12th created. Root system can be easier in the loosened soil 54 penetrate, and the water supply to the root system is significantly improved.

Not shown are smoothing agents that can be held on the support frame with which the loosened soil 54 and / or the one with the plant seeds 12th populated floor area 56 can be closed or smoothed. Smoothing agents can in particular between working tines 22 and coulter 18th and / or in the working direction behind the coulter 18th be provided. Smoothing agents can be, for example, rollers and / or arm-like tines that smooth or close the processed soil areas when the floor surface is slipped on. Details of the structure of the seed drill according to the invention 10th can in particular as in the expressly referred to EP 1 608 214 B1 described generic seed drill.

3rd shows schematically the dosing of animal baits 30th in the channel designed according to the invention 26 below a plant soil surface 24th . The dosing of animal baits 30th in the channel 26 can be provided according to the invention continuously or in timed intervals in individual units of measure. In the example shown is below a stock of animal baits 30th a dosing element 62 arranged which the animal bait 30th into a supply line 44 for forwarding to the sinker 28 dosed.

In the present case, a discrete dosage is shown, with individual units of measure at adjustable intervals in the feed line 44 be performed. The dosing element can do this 62 for example a metering roller 68 have the rotation around an axis of rotation M Units of animal bait 30th from a supply to the supply line 44 discards. It is conceivable that the roller has a recess or a recess for this, which is rotated by a supply of animal baits 30th with a unit of bait 30th is filled and this unit of measure after further rotation in a metering inlet 64 the supply line 44 delivers. The animal baits fall as the roller rotates 30th due to gravity into the recess and are aligned with the orientation of the recess in the area of the metering inlet 64 due to gravity in the metering inlet 64 submitted.

Alternatively, the dosing element 62 be trained an adjustable continuous inflow of animal baits 30th from a supply into the dosing inlet 64 to deliver. The clocked or continuous dosing of animal baits 30th can as indicated by the control unit 50 be adjustable. The dosing speed or the dosing cycle is preferably adjustable depending on the driving speed of an agricultural machine guiding the coulter. The rhythm or the continuous feeding of the animal bait 30th can thus be automatically reduced when the driving speed is reduced or increased when the driving speed is increased. The control unit is preferably 50 arranged in the area of an agricultural machine (not shown) so that an agricultural machine operator can set parameters of the seeder such as, for example, the setting of the dosage directly in the area of the agricultural machine, for example in the cockpit of the agricultural machine. The control unit is preferably 50 Part of an on-board computer of an agricultural machine.

In the present exemplary embodiment it is shown that the animal bait 30th pneumatic in the supply line 44 is transported. There is a blower for that 60 to the supply line 44 connected. The in the area of the supply line 44 The arrows shown indicate the direction of transport of the animal bait 30th on. With pneumatic dosing, the baits can also pass through horizontal or horizontal, curved or even passages of the feed line that run counter to the direction of gravity 44 be transported. You can also use the bait 30th thus in the outlet area of the bait guide in the channel 26 placed under pressure. The conveying air also ensures that an air cushion forms around the displacement body and that no soil adheres to cohesive soils.

It can be provided that the blower 60 by means of a control unit 50 is controllable, so that in the supply line 44 prevailing air pressure or the air speed is adjustable. The dosing inlet 64 can preferably be designed as a nozzle with a side inlet, the bait 30th for infiltration into the supply line 44 be metered into the side inlet of the nozzle. In particular, the metering inlet 64 be designed as a Venturi nozzle.

3rd shows a feed of animal bait according to the invention 30th in the channel 26 that is below the plant soil surface 24th in the ground 14 is incorporated. The supply line 44 is for a pipe socket 34 of the sinker 28 connected, the continuous stream or the clocked units of the animal bait 30th in the pipe socket 34 and further into one to the ground 14 open area of the sinker 28 be performed. With the timed dosing of the animal bait 30th the metered units of measure in the form of heap-like depots in the channel 26 filed. Alternatively, a continuous stream of animal bait 30th stored in the channel (not shown).

The one with the blower 60 generated air flow in the supply line 44 ensures that the displacer is pressurized 28 during the formation of the channel 26 . This will open the displacer 28 in the mouth of the pipe socket 34 constantly pressurized. It has been shown that the recess of the displacement body formed in the area of the storage opening 28 add less with the displaced soil if excess pressure is generated in this opening area of the displacement body with a compressed air supply. The compressed air supply prevents the opening area or the pipe socket from becoming blocked 34 . This ensures that the bait is safely stored 30th guaranteed. In addition, the compressed air supply leads to an improved formation of a stable tunnel-shaped channel 26 .

4th shows an example of animal bait depots 66 that with clocked dosing of the animal bait 30th in the channel 26 are filed. The distances between the depots depend on the clock setting 66 narrower or broader. The distance between the depots is preferably 10th to 50 cm. A distance between 20 and 40 cm is further preferred and a distance of 30 cm is particularly preferred. The distance and / or the amount of bait per depot can vary depending on the legal requirements regarding the amount of bait to be used. The continuous or cyclical metering is preferably set such that approximately 2.5 kg of animal bait per hectare are applied using the seed drill according to the invention.

Reference list

10th

Seeder

12th

Plant seeds

14

Planting soil

16

Support frame

18th

Säschar

20th

Seed management agents

22

Working tine

24th

Plant soil surface

26

channel

28

Displacement body

30th

Animal bait

32

Bait guide

34

Pipe socket

36

Swivel axis

38

Seed hopper

40

Supply

42

Animal bait container

44

Supply

46

Dosing device

48

Dosing device

50

Control device

52

solid floor area

54

loosened floor area

56

Carrying wheel

58

clutch

60

fan

62

Dosing element

64

Dosing inlet

66

depot

68

Dosing roller

A

Working direction of the seeder

M

Axis of rotation

Claims (13)

Sowing machine (10) for introducing plant seeds (12) into a planting soil (14), comprising a supporting frame (16) and at least one coulter (18) held on the supporting frame (16) for processing the planting soil (14), one of the coulters ( 18) assigned seed guiding means (20) for feeding and depositing the plant seeds (12) into the planting soil (14) processed with the seed coulter (18), and one aligned in one working direction (A) of the seed drill (10) in front of the seed coulter (18) working tine (22) held on the support frame (16) and projecting into the planting soil (14) in an operating position of the seed drill (10), characterized in that a section for working in on the section of the working tine (22) projecting into the planting soil (14) a displacement body (28) formed below the plant soil surface (24) and a tunnel-shaped channel (26) is arranged, and wherein the working tine (22) is a bait guide designed to place an animal bait (30) in the channel (26) medium (32) is assigned. Seed drill after Claim 1 , characterized in that the displacement body (28) is tubular. Sowing machine according to one of the Claims 1 or 2nd , characterized in that the bait guiding means (32) comprises a line socket (34) connected to the displacement body (28), the line socket (34) forming and being set up so that an animal bait guided through the line socket (34) into the through the displacement body trained channel is directed. Seed drill according to one of the preceding claims, characterized in that the displacement body (28) is mounted on the working tine (22) so as to be pivotable about a pivot axis (36) oriented transversely to the working direction (A). Seed drill according to one of the preceding claims, characterized in that the seed drill (10) comprises a seed container (38) for storing the plant seeds (12), which is connected via a feed line (40) to the seed guiding means (20) assigned to the seed coulter (18) is. Seed drill according to one of the preceding claims, characterized in that the seed drill (10) comprises an animal bait container (42) for storing the animal bait (30), which is connected via a feed line (44) to the bait guide means (32) assigned to the working tine (22) is. Seed drill according to one of the preceding claims, characterized in that the seed drill (10) comprises at least one dosing device (46; 48) which doses the plant seed (12) to the seed guiding means (20) assigned to the coulter (18) and / or the animal bait (30) doses to the bait guiding means (32) assigned to the working tine (22). Seed drill after Claim 7 , characterized in that the metering device (46; 48) can be controlled by means of an electronic control device (50). Sowing machine according to one of the Claims 7 or 8th , characterized in that the dosing device (48) delivers the animal baits (30) in continuous dosing or at intervals in individual units. Seed drill according to one of the preceding claims, characterized in that the seed drill (10) comprises a pneumatic transport system by means of which the plant seed (12) and / or the animal bait (30) is pneumatically transported in the area of the seed drill (10) at least in certain areas. Seed drill according to one of the preceding claims, characterized in that the displacement body (28) is pressurized when the channel (26) is formed, so that the channel is formed below the plant soil surface (24) at an overpressure. Method for introducing plant seeds (12) into a planting soil (14), in particular with a seeder (10) according to one of the preceding claims, characterized by the steps: incorporating a tunnel-shaped channel (26) lying below the planting soil surface (24) into the planting soil (14) using one on a working tine (22) fixed displacement body (28); Introducing an animal bait (30) into the tunnel-shaped channel (26) incorporated into the planting soil (14) by means of the displacement body (28); Working the planting soil (14) with a coulter (18) at a distance in the working direction (A) behind the displacement body (28); Placing plant seeds (12) in the planting soil (14) worked with the coulter (18). Procedure according to Claim 12 , characterized by the further step: smoothing the planting soil (14) behind the working tine (22) and / or behind the coulter (18).

Images