JPH0724982Y2 - Fertilizer application for paddy work machines - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fertilizer application device for a paddy working machine such as a rice transplanter or a submerged soil seeder, and more specifically, a two-stage fertilized rice plant for simultaneously fertilizing a shallow layer and a deep layer of a field. It relates to the improvement of machines and the like.

2. Description of the Related Art Conventional techniques and problems Conventionally, in rice transplanters and the like, side-row fertilizer rice transplanters, which are used for fertilizing a shallow layer of a field in parallel with planting seedlings, are already known and used. Further, a rice transplanter (two-stage fertilized rice transplanter), which is adapted to apply fertilizer to upper and lower two layers of a shallow layer and a deep layer at the same time, has also been proposed.

The purpose of applying fertilizer to the upper and lower two layers of the shallow layer and the deep layer is to obtain a fertilizing effect for early growth such as improved survival by lateral row shallow layer fertilizing, and a fertilizing effect for mid-term growth by deep fertilizing to save labor for fertilization management. It aims to increase sales and increase sales. However, many of the conventional ones have a structure in which both shallow and deep fertilizer pipes are supported by a float for sliding down a paddy field, and mud resistance to the fertilizer pipes is directly added to the float, which disturbs the balance of the float. There is a risk. In particular, the float with the hydraulic pressure sensing function for automatically raising and lowering the planting part has a drawback that normal hydraulic operation is impaired when the balance is disturbed, and thus the planting depth varies and the planting accuracy deteriorates. It is a thing. In addition, since the deep-layer fertilizer pipes are generally placed at the laterally separated positions of the float and do not cover the soil with the float, if left as it is, the deep-layer fertilizer at a sharp angle floats on the surface layer and the fertilizing fertilizing effect cannot be expected. However, it causes fertilizer runoff and environmental pollution, and in order to prevent it, it is necessary to equip a cover plate separately, which causes a problem of increased cost and increased weight.

Means for Solving the Problems Therefore, the present invention proposes to slide the shallow fertilizer pipe 9 and the deep fertilizer pipe 21 into the field so that fertilizer is applied to the shallow and deep regions of the field at the same time in parallel with planting or sowing. In the paddy working machine attached to the float 5 for use in shallow fertilization, a shallow layer fertilization pipe 9 is provided on the side of the central float which is a hydraulic pressure sensing float for maintaining the working depth of the planting part or the sowing part. The pipe 21 is provided so as to penetrate substantially the central portion of the float 5, and the shallow rock fertilizer pipe 9 and the deep fertilizer pipe 21 are attached to the upper surface of the float 5 before and after the same stay 12 float swing mounting fulcrums 5a, 5b. It is intended to eliminate the above-mentioned problems by mounting it at a substantially intermediate position.

Action The shallow fertilizer pipe is provided on the side of the float, and the deep fertilizer pipe is provided so as to pass through almost the center part of the float, so the balance of the float is good, and the deep rear fertilizer pipe passes through after the deep fertilizer pipe and the deep fertilizer hole is passed. Is covered by the float itself. Therefore, it is not necessary to separately provide a soil cover plate.

Examples The drawings show an example in which the fertilizer application apparatus according to the present invention is installed in a six-row planting rice transplanter P.

The rice transplanter P is connected to the rear of the traveling body A through the link mechanism 1.
A planting section (working section) B composed of a drive case 2, a seedling mounting table 3, a planting rod 4, and three floats 5 for sliding down a field is connected in a vertically movable manner, and the planting rod 4 is rotated up and down. It is the same as in the prior art that the mat seedlings (not shown) on the seedling mounting table 3 are scraped off one by one by movement and continuously planted on the rice field.

The center float 5 of the three floats 5 is a hydraulic pressure sensing float for moving the planting part B up and down. In response to the vertical movement of the central float 5, a hydraulic valve (not shown) is actuated to plant it. The part B is automatically moved up and down to keep the planting depth constant.

The rice transplanter P is provided with a fertilizer application section a for fertilizing the shallow layer fertilizer at a position near the side row shallow layer in the vicinity of the planting row corresponding to each row. The fertilization part b for fertilizing the deep-layer fertilizer is provided for each partition at the deep part of the part.

In the present embodiment, as the shallow layer fertilizer, a fertilizing agent suitable for initial growth of seedlings, for example, a liquid fertilizer such as a paste-like fertilizer is used. Between the fertilizer tanks 6 mounted on both sides of the front part of A, between the fertilizer pumps 8 with transmissions arranged below the seat 7, and the nozzle-shaped shallow-layer fertilizer pipes 9 between the fertilizer tanks 6 and the fertilizer pumps 8. Between the fertilizer pump 8 and the fertilizer pipe 9, hoses 10 and 11, respectively.
Are connected via. Then, the shallow fertilizer pipes 9 are arranged symmetrically at positions close to both sides of the float 5, and the fertilizer mouth 9a is 3 to 5 cm deep from the rice field, and about 2 cm from the planted shoot row.
It is set at a separated position.

The shallow-layer fertilizer pipe 9 is supported by the float 5, and its supporting structure is as follows. That is, the bearing cylinder 13 is welded to the middle of the stay (base metal) 12 fixed to the upper surface of each float 5, and the support shaft 14 rotatably inserted into the bearing cylinder 13.
The receiving plates 15 are fixed to both ends of the mounting plate 16, and the mounting plates 16 integral with the shallow-layer fertilizing pipe 9 are screwed to the receiving plates 15 with bolts 15a. And
The shallow layer fertilization pipe 9 is configured to be vertically rotatable within a predetermined range by a fertilization depth adjuster 17 so that the fertilization depth can be adjusted. The shallow fertilizer tube 9 may be provided only on one side of the float 5.

On the other hand, as the deep-layer fertilizer, for example, granular fertilizer with a coating film is used, and the fertilizer application part b of this shallow-layer fertilizer is a fertilizer hopper 19 supported above the drive case 2 via a stay 18, Feeding roll 20 installed in fertilizer hopper 19, drive mechanism M of feeding roll 20, float 5
And an insertion hole (not shown) opened in the approximate center of the stay 12.
The deep fertilizer pipe 21 penetrated into the deep fertilizer pipe 21, a groove plate 22 arranged in front of the deep fertilizer pipe 21, etc., between the funnel 23 provided at the outlet of the fertilizer hopper 19 and the deep fertilizer pipe 21 via a hose 24. It is connected. The drive mechanism M of the feeding roll 20 is independent of the pair of left and right planting rods 4, and the bell crank 25,
It is linked to the planting rod 4 via a connecting rod 26 or the like, and in conjunction with the rotation of the planting rod 4, granular deep-layer fertilizer accommodated in the hopper 19 is fed out by a predetermined amount, and a deep-layer fertilizer pipe. twenty one
The fertilizer is applied to the deep layer of the soil from the soil, and the feeding roll 20 is configured to interlock with a row stopping mechanism (not shown) for every two rows of the planting section.

The fertilizer for deep layer is fertilizer applied to each deep row in the deep area in the central part of the row between planting rows, and the fertilization depth is 10 to 15 from the paddy field.
It is set to cm.

By the way, the deep fertilizer pipe 21 and the grooved plate 22 are integrated with the bracket 27 having the upper end fixed to the stay 12 on the float 5 via the bolt 28. Therefore, the deep fertilizer pipe 21 and the shallow fertilizer pipe 9 are The float 5 is supported via the same stay 12. Further, the deep-layer fertilization pipe 21 is provided so as to be positioned in the middle portion in the width direction of the float 5, and moreover, it is arranged in a well-balanced manner so that the deepest part of the deep-layer fertilization pipe 21 is located at the approximate center of the float fulcrum 5a, 5b. I am doing it.

In addition, although the fluid fertilizer such as a paste-like fertilizer is used as the shallow layer fertilizer and the granular fertilizer is used as the deep layer fertilizer in the above-described embodiment, the fertilizer for the deep layer is not necessarily limited thereto. Further, the present invention can be installed not only on the paddy rice transplanter but also on the paddy working machine such as the walk-type rice transplanter or the direct seeder for submerged soil.

In the above configuration, when performing a planting (fertilizing) operation, the fertilizer tank 6 is loaded with paste-like fertilizer suitable for initial growth of a crop, and the fertilizer hopper 19 is loaded with granular fertilizer coated with a coating film. When the planting clutch (not shown) is turned on to move the machine forward and the fertilizer pump 8 is started to start the work, the mat seedlings on the seedling stand 3 are scraped off by the planting rods 4 one by one. And planted continuously on the rice field.

On the other hand, the paste fertilizer in the fertilizer tank 6 is hose 10,11.
After being fed to the rear of the machine via the fertilizer, the fertilizer is applied from the shallow-layer fertilization pipe 9 to the shallow-layer portion near each planting row. Also the hopper
The granular fertilizer in 19 is fed out in a fixed amount in conjunction with the rotation of the planting rod 4, and passes through the hose 24 from the deep fertilizer pipe 21 to the grooving plate.
It falls into the groove made in 22 and is fertilized in a deep layer in the central part between the planting rows. The rear part of the float 5 passes through the traces of fertilization and closes the fertilization holes, so that soil is naturally covered.
As a result, shallow fertilization as a basic fertilizer and deep fertilization with top-dressing fertilization effect are performed at a proper ratio and density in relation to the planting strip, promoting rooting and splitting to enhance initial growth of seedlings, and effective stems. The number can be secured at an early stage, and the granular fertilizer coated with the coating film gradually begins to dissolve from the time when the roots are extended to the vicinity of the fertilizer, so that the fertilizing effect in the middle growth period can be continuously obtained. Therefore, the fertilizer can be absorbed throughout the growing period without causing the fertilizer to run out, and the number of additional fertilizing operations can be reduced as much as possible. Further, since the soil covering of the deep-layer fertilization trace is completed by the passage of the float 5, the granular fertilizer is hermetically held at a predetermined depth from the rice field after fertilization. Therefore, the fertilizer does not float up or run off, which is useful for environmental protection.

By the way, the shallow-layer fertilization pipes 9 are symmetrically arranged on both left and right sides of the float 5, and the deep-layer fertilization pipe 21 is provided so as to penetrate substantially the central portion of the float 5, so that the deep-layer fertilization pipes 5 are deeply formed at the central portions of the float fulcrums 5a and 5b. Coupled with the fact that the deepest part of the fertilizer application pipe 21 is located, it is possible to minimize the adverse effect of the mud resistance on the fertilizer application pipes 9 and 21 on the float 5. for that reason,
Although the shallow fertilizer pipe 9 and the deep fertilizer pipe 21 are both supported by the float 5, the front-rear and left-right balance of the float 5 is always kept well, and the float 5 closes the seedlings with unnecessary mud while working. The planting accuracy is kept good because the planting accuracy is prevented as much as possible and that the float having the hydraulic pressure sensing function for raising and lowering the planting part is not adversely affected. Moreover, since both fertilizer pipes 9 and 21 and the grooving plate 22 are attached to the same stay 12, the fertilization depth from the paddy field is maintained at the predetermined depth for both the shallow and deep layers, and effective fertilization management is performed. Is possible.

Effect of the Invention As described above, the present invention supports both the shallow fertilizer pipe and the deep fertilizer pipe on the float, but can always maintain a good balance of the float, which adversely affects the planting accuracy. In addition, it is possible to prevent the soiling of the fertilizer application hole by passing the rear side of the float after passing through the deep fertilizer pipe, and thus it is possible to eliminate the need for a soil cover plate, etc.
Combined with the fact that an extra stay for fertilizer application is unnecessary,
The cost and weight can be reduced, and moreover,
The effect is that the fertilization depth from the paddy field can always be kept constant.

Since each fertilizer pipe was installed at approximately the middle position of the rocking mounting fulcrum for oil pressure detection before and after the float, attach the fertilizer pipe to the central float for oil pressure detection that keeps the working depth of planting or sowing constant. However, the degree of hindrance to the vertical swing of the central float is less disturbed, and the stability and accuracy of oil pressure sensing and working depth control can be maintained well.

[Brief description of drawings]

The drawings show one embodiment of a fertilizer application device for a paddy field working machine according to the present invention. Fig. 1 is a side view of a riding rice transplanter equipped with the present invention, and Fig. 2 is a planting part and deep fertilizer application. Fig. 3 is a rear view of the part, Fig. 3 is a side view of the main part, Fig. 4 is a plan view of the main part, Fig. 5 is an exploded perspective view of the mounting structure of the deep fertilizer pipe and the grooving plate to the bracket, and Fig. 6 is It is a cross-sectional top view which shows the support structure of a shallow layer fertilization tube. 5 is a float, 9 is a shallow fertilizer pipe, 12 is a stay, 21 is a deep fertilizer pipe.

Claims (1)

[Scope of utility model registration request] 1. A shallow fertilizer pipe (9) and a deep fertilizer pipe (21) are floated for sliding down a paddy field so that fertilizer is applied simultaneously to the shallow and deep regions of a field in parallel with planting or sowing. In the paddy work machine attached to 5), shallow-layer fertilization pipe (9)
Is provided on the side of the central float which is a hydraulic pressure sensing float for maintaining the working depth of the planting part or the sowing part, and the deep fertilizer pipe (21) is provided so as to penetrate substantially the central part of the float (5). Together with the shallow fertilizer pipe (9) and the deep fertilizer pipe (21) attached to the upper surface of the float (5), the same stay (12)
A fertilizer applicator for paddy work machines, characterized in that the fertilizer is installed at a position approximately midway between the float swing mounting fulcrums (5a) and (5b) before and after.