JP7353626B2 - Seeding device - Google Patents

Description

The present invention relates to a seeding device.

Conventionally, an irrigation device and a seed supply device are provided above a transfer table having a transfer means for transferring a seedling raising container, and a water receiving sheet is provided below the irrigation device and the seed feeding device. The structure is known in the art, in which the lower end of the hanging fixture is engaged with the sheet attachment hole provided at the top of the water receiving sheet along with the cord, and the hanging fixture is hung, and the upper end of the hanging fixture is fixed to the transfer table frame side with bolts. Yes (Patent Document 1)

Publication No. 4-23366

In the known example, there is a gap in the vertical direction between the upper end of the water receiving sheet and the lower surface of the transfer table frame of the transfer table, so water splashed from the irrigation device and drainage discharged from the seedling container leak through this gap. There is a problem that it scatters.
In other words, at first glance in FIG. 1 of the known example, the upper end of the water-receiving sheet and the side surface of the transfer table frame of the transfer table overlap, but in the known example, there is no water around the seeding device. There is no recognition of the problem of muddy water scattering, and in FIGS. 3 and 4, there is a gap between the upper end of the water receiving sheet and the lower surface of the transfer table frame of the transfer table, and water scatters from this gap.
Further, since a large notch is formed in the water receiving sheet in order to attach and detach the paddy receiving box provided below the seed supply device, there is a problem that water scatters from this notched portion.
Furthermore, since the hanging equipment was attached to the transfer table frame with bolts, there was a problem in that the task of attaching the water receiving sheet was troublesome.
In addition, the known example assumes only a seeding device that is provided with an irrigation device in front of the seed supply device, so there is a problem that so-called "post-irrigation" in which watering is performed after seed supply is not possible.
The present application provides a seeding device that prevents water and muddy water from scattering around the seeding device by devising the mounting position and mounting configuration of the water receiving sheet, and also facilitates the attachment and detachment of the water receiving sheet. Furthermore, the present invention is configured to be applicable to a seeding device in which irrigation devices are installed on both the front and back sides of the seed feeding device, thereby providing a highly versatile seeding device.

The invention of claim 1 provides a method for supplying bedding soil into the seedling growing container A from above at a position above a transfer table 1 having a transfer means 2 for horizontally transferring the seedling growing container A from the starting end side to the terminal end side. A bed soil supply device 4, an irrigation device 6 that supplies water into the seedling growing container A from above, and a seed feeding device 7 that supplies seeds into the seedling growing container A from above are provided, and the irrigation device 6 and the seed feeding device are provided. A water-receiving sheet 30 is provided below the water-receiving sheet 30, and the water-receiving sheet 30 is suspended during the sowing operation using a hanging tool 38 that is engaged with a mounting hole 34 provided in the water-receiving sheet 30. The upper edge 40 and the lower surface of the transfer table frame 36 of the transfer table 1 are arranged so that there is no gap in the vertical direction, and the upper edge 40 of the water receiving sheet 30 is arranged at least on the side of the transfer table frame 36. The seeding device is located at an intermediate position between the top and bottom of the plant .
According to a second aspect of the present invention, the upper edge 40 of the water receiving sheet 30 is formed in a substantially horizontal state from beginning to end from the beginning to the end.
The invention according to claim 3 provides a seeding device in which the water receiving sheet 30 is formed by providing side portions 32 on both left and right sides of a bottom portion 31 and having rising portions 33 rising upward substantially vertically on both front and rear sides of the bottom portion 31. That is.
According to a fourth aspect of the invention, the water receiving sheet 30 has a hanging fixture 38 having one end engaged with a mounting hole 34 provided in the water receiving sheet 30 and a mounting hole 37 provided on the transfer table frame 36 side. The seeding device is configured to engage with the seeding device.
According to a fifth aspect of the invention, one of the left and right transfer table frames 36 is provided with a drive sprocket 42 for transmission of the transfer means 2, and a cover 43 is provided on the outer side of the drive sprocket 42 for transmission. The seeding device has a mounting hole 37 provided in the cover 43.
According to a sixth aspect of the present invention, a transfer table frame 36 that is not provided with a transmission drive sprocket 42 on either the left or right side of the transfer table frame 36 has a lower or lower outer edge portion of an upper plate 45 of the transfer table frame 36. The seeding device is provided with a protrusion 46 that protrudes laterally, and a mounting hole 37 in which the hanging tool 38 engages.
According to a seventh aspect of the invention, the hanging tool 38 for suspending the water receiving sheet 30 is a seeding device formed in an S-shape having arcuate portions 41 at the top and bottom.
According to an eighth aspect of the invention, the transfer table 1 is configured such that an irrigation device 6 can be installed on either or both of the front and rear sides of the seed supply device 7, and the water receiving sheet 30 is installed on both the front and rear sides of the seed supply device 7. When the irrigation device 6 is installed, it is a seeding device formed with a front and back length located below the irrigation device 6 on both front and rear sides.

In the invention of claim 1, the water receiving sheet 30 is arranged so that the upper edge 40 of the water receiving sheet 30 and the lower surface of the transfer table frame 36 of the transfer table 1 are arranged relatively without any gap, so that there is no gap around the seeding device. It is possible to prevent water and muddy water from scattering, and since the upper edge 40 of the water receiving sheet 30 is located at least at an intermediate position between the upper and lower sides of the transfer table frame 36, it is possible to prevent water and muddy water from scattering. Prevents water and muddy water from scattering.
In the invention of claim 2 , since the upper edge 40 of the water receiving sheet 30 is formed in a substantially horizontal state from the beginning to the end, drainage of the seedling raising container A passing below the seed supply device 7 can be carried out. It is possible to prevent water and muddy water from scattering around the seeding device, including water flowing down from the holes.
In the invention according to claim 3 , the water receiving sheet 30 is formed by providing side portions 32 on both left and right sides of the bottom portion 31, and having rising portions 33 rising upward substantially vertically on both front and rear sides of the bottom portion 31. Therefore, even if the irrigation device 6 is provided either before or after the seed supply device 7, the side portions 32 and the rising portions 33 can prevent water or muddy water from scattering around.
In the invention of claim 4 , the water receiving sheet 30 has one end of the hanging fixture 38 engaged with the mounting hole 34 provided in the water receiving sheet 30, and the other end of the hanging fixture 38 engaged with the mounting hole 37 provided on the transfer table frame 36 side. Since it is configured to engage, the water receiving sheet 30 can be attached to and removed from the transfer table frame 36 of the transfer table 1 without any tools.
In the invention of claim 5 , a drive sprocket 42 for transmission of the transfer means 2 is provided on either the left or right of the transfer frame 36, and a cover 43 is provided on the outside of the drive sprocket 42 for transmission. Since the mounting hole 37 is provided in the cover 43, it is possible to prevent water from entering the transmission part of the transfer table 1 and also to prevent water and muddy water from scattering around the seeding device.
In the invention according to claim 6 , the transfer table frame 36 on either the left or right side of the transfer table frame 36, which is not provided with the transmission drive sprocket 42, has a lower part on the outer edge of the upper plate 45 of the transfer table frame 36. Alternatively, a protrusion 46 that protrudes laterally is provided, and a mounting hole 37 is provided in the protrusion 46 to which the hanging tool 38 engages, so that the water receiving sheet 30 can be attached to the transfer table frame 36 of the transfer table 1 without tools. It is removable and can prevent water and muddy water from scattering around the seeding device.
In the invention of claim 7 , the hanging tool 38 for suspending the water receiving sheet 30 is formed in an S-shape having circular arc portions 41 at the top and bottom, so that the water receiving sheet 30 can be easily attached and detached without any tools. realizable.
In the invention according to claim 8 , the transfer table 1 is configured such that an irrigation device 6 can be installed on either or both of the front and rear sides of the seed supply device 7, and the water receiving sheet 30 is installed on both the front and rear sides of the seed supply device 7. When the irrigation device 6 is installed, it is formed with a front and back length that is located below the irrigation device 6 on both the front and rear sides, so it is possible to "irrigate" regardless of before or after seed supply, making it highly versatile. While providing a seeding device with high quality, it is possible to prevent water and muddy water from scattering around the seeding device, thereby improving the added value of the product.

A side view of the seeding device. A side view of the bed soil supply device. A side view of the irrigation device. A side view of the seed supply device. (A) Side view of the pre-irrigation seeding device. (B) Side view of the post-irrigation seeding device. The side view of the seeding device which provided the irrigation device before and behind the seed supply device. The front view of the water receiving sheet in the attached state. Same left side view. Right side view of the same.

One embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a transfer table of a seeding device H, which has a transfer means 2 formed by a transfer roller or a transfer belt for transferring a seedling raising container A, and has a transfer means 2 formed by a transfer roller or a transfer belt for transferring a seedling raising container A. configured to be placed.
At the upper position of the transfer table 1, from the starting end side, a bed soil supply device 4, a bed soil leveling brush 5, an irrigation device 6, a seed supply device 7, a soil covering supply device 8, etc. are installed, and the soil supplied by these supply devices is - Seeds, water, etc. are supplied from above while transporting the seedling raising container A using the transporting means 2 (Fig. 1).
In order to facilitate understanding, the following explanation will be given using directions such as front and back, left and right, and up and down, based on the transfer direction of the seedling growing container A that is transferred by the transfer table 1 toward the front. The configuration is not limited.

A bed soil supply device 4 for supplying bed soil to the seedling growing container A is provided at the starting end of the transfer table 1.
The structure of the bed soil supply device 4 is arbitrary, and a bed soil supply hopper 11 is provided on the upper part of the bed soil supply frame 10, and an endless shape that rotates in a direction parallel to the transfer direction of the seedling raising container A is provided below the bed soil supply hopper 11. It is constructed by providing a bed soil supply belt 12 (FIG. 2).
The configuration of the irrigation device 6 is arbitrary, and an irrigation pipe 16 in the left and right direction is provided on the upper part of the irrigation frame 15, and a water supply hose (not shown) is connected to the irrigation pipe 16, and the water is passed through the irrigation hole of the irrigation pipe 16 downward. Irrigate the bed soil in seedling raising container A (Figure 3).

The structure of the seed supply device 7 is arbitrary, and the seed supply hopper 21 is provided at the front upper part of the seeding frame 20, the grain flow board 23 is provided at the seed supply port 22 of the seed supply hopper 21, and the tip of the grain flow board 23 is connected to the seed supply port 22 of the seed supply hopper 21. (FIG. 4).
Reference numeral 26 denotes a paddy receiving box provided below the seed supply device 7, which functions to catch paddy seeds that fall without being sown into the seedling raising container A.
Note that, as will be described later, the irrigation device 6 is configured to be detachably attached to the transfer table 1, and its installation position relative to the seed supply device 7 can be changed.

That is, those skilled in the art refer to irrigating the bed soil before supplying seeds with the seed supply device 7 as "pre-irrigation" (FIG. 5A); Those skilled in the art refer to this as "post-irrigation" (FIG. 5B), and the present invention is configured so that the irrigation device 6 can be installed either before or after the seed supply device 7, or both. FIG. 1 shows the installation positions of both the pre-irrigation device 6A and the post-irrigation device 6B.

Therefore, if the irrigation device 6 is provided on both the front and rear sides of the seed supply device 7, the irrigation device 6 in front of the seed supply device 7 is set as the front irrigation device 6A, and the irrigation device on the rear side of the seed supply device 7 is set as the front irrigation device 6A. 6 is a post-irrigation device 6B, and a water receiving sheet 30 is provided below the pre-irrigation device 6A to the post-irrigation device 6B so as to straddle both the front-irrigation device 6 and the post-irrigation device 6 in the front and back (Fig. 1 , Figure 6). The water receiving sheet 30 receives water flowing down from the irrigation device 6 and water leaking from the drainage hole of the seedling raising container A, and is made of vinyl or the like.
That is, the transfer table 1 is configured such that the irrigation device 6 can be installed on either or both of the front and rear sides of the seed supply device 7 (FIG. 5), and the water receiving sheet 30 is configured so that the irrigation device 6 can be installed on either or both of the front and rear sides of the seed supply device 7. 6 is installed, it is formed with a front and back length located below the irrigation device 6 on both front and rear sides (FIGS. 1 and 6).

The symbol "B" in FIG. 5 is a striping roll, and the symbol "C" is a compression roll.
The water receiving sheet 30 has side portions 32 on both left and right sides of a bottom portion 31, rising portions 33 at the front and rear of the side portions 32, and is formed into a U-shape in cross section when viewed from the front.
Therefore, the side portions 32 on both the left and right sides of the bottom portion 31 and the rising portions 33 rising substantially vertically upward can prevent water and muddy water from scattering around.
A plurality of seat attachment holes 34 are provided in parallel at the upper edge portion of the side portion 32 at predetermined intervals. 35 is a ring-shaped annular metal fitting (eyelet metal fitting) that reinforces the seat attachment hole 34 (FIGS. 8 and 9).

The water receiving sheet 30 is formed with side parts 32 on both the left and right sides of the bottom part 31, and rising parts 33 that stand up substantially vertically upward on both the front and rear sides of the bottom part 31, so that the irrigation device 6 can be used for seedlings. Regardless of whether it is provided before or after the supply device 7, the side portions 32 and the rising portions 33 can prevent water or muddy water from scattering around.
The sheet attachment hole 34 of the water receiving sheet 30 is suspended from a frame-side attachment hole 37 provided in the transfer table frame 36 of the transfer table 1 using a hanging tool 38 (FIG. 7).

In this case, the frame side mounting hole 37 of the transfer table frame 36, the hanging tool 38, and the sheet attachment hole 34 of the water receiving sheet 30 are such that the upper end edge 40 of the water receiving sheet 30 is at least connected to the transfer table frame. It is configured to be located at an intermediate position between the upper and lower sides of 36.
As a result, the upper edge 40 of the water receiving sheet 30 is always located on the side of the transfer table frame 36, and the water from the irrigation device 6 is prevented from scattering to the outside of the transfer table frame 36 of the transfer table 1. do.
That is, the upper edge 40 of the water receiving sheet 30 is formed in a substantially horizontal state from the beginning to the end.
Therefore, it is possible to prevent water and muddy water from scattering around the seeding device, including water flowing down from the drainage hole of the seedling raising container A passing below the seed feeding device 7.

The hanging tool 38 for suspending the water receiving sheet 30 is formed in an S-shape having circular arc portions 41 on the upper and lower sides, and the upper circular arc portion 41 of the upper and lower circular arc portions 41 engages with the frame side mounting hole 37. , engage the lower arcuate portion 41 with the seat attachment hole 34 of the water receiving sheet 30 (FIG. 7).
A drive sprocket 42 for transmission of the transfer means 2 is provided on either the left or right of the transfer frame 36, and a rail cover 43 is provided on the outside of the drive sprocket 42 for transmission. A frame-side attachment hole 37 is provided in the rail cover 43, and the water-receiving sheet 30 is suspended by a hanging tool 38 that is engaged with the frame-side attachment hole 37.

Reference numeral 44 denotes a fitting hole into which the lower circular arc portion 41 of the hanging tool 38 is fitted, and holds the hanging tool 38 in a vertical position.
Of the transfer table frames 36, the transfer table frame 36 on which the transmission driving sprocket 42 is not provided is provided with a protrusion that projects downward or sideways on the outer edge of the upper plate 45 of the transfer table frame 36. 46, a frame-side mounting hole 37 is provided in the protrusion 46 with which a hanging tool 38 is engaged, and the water receiving sheet 30 is suspended by the hanging tool 38 that is engaged with the frame-side mounting hole 37. (Figure 8).

50 is a drainage nozzle provided on the bottom 31, and the upper end of the drainage nozzle 50 is positioned a predetermined distance above the upper surface of the bottom 31 of the water receiving sheet 30 so that a predetermined amount of water is stored on the bottom 31; The mud is precipitated in the stored water and is prevented from being discharged from the drainage nozzle 50.
51 is a drainage hose connected to the drainage nozzle 50.
Although not shown in the drawings, the seed feeding device 7 of the present invention is attached to the pair of left and right transfer frames 36 of the transfer table 1 so as to be slidable back and forth by a sliding mechanism, and a fertilizing device (not shown) is mounted on the transfer table 1. ) and space for installing irrigation equipment 6, etc.

That is, the shorter the length of the transfer table 1, the more advantageous it is for transporting and storing the sowing device H, but if the seed feeding device 7 is fixed in position, the bed soil feeding device 4 and There is no space to install the pre-irrigation device 6 and the fertilization device between the seed supply device 7 and the space to install the fertilization device and the post-irrigation device 6 between the seed supply device 7 and the soil-covering device 8. In order to install the irrigation device 6 and the fertilization device afterwards without changing the position of the seed supply device 7, it is necessary to secure a space in advance to install these devices, and the length of the transfer table is accordingly reduced. However, in the present invention, by making the seed feeding device 7 slidable back and forth, the length of the transfer table 1 can be secured in advance while securing an installation space that enables the installation of a retrofitted irrigation device 6 and fertilization device. The length can be shortened.

(Action of embodiment)
The present invention has the above-mentioned configuration, and when the seedling growing container A is supplied to the transfer table 1, it is brought to the lower part of the soil supply device 4 by the transfer means 2, and is supplied with soil by the soil supply device 4.
The seedling raising container A supplied with bed soil reaches below the bed soil leveling brush 5, and the top surface of the supplied bed soil is leveled by the bed soil leveling brush 5.
The seedling raising container A with the top surface of the bed soil leveled is further transported, and in the pre-irrigation sowing mode, the bed soil in the seedling raising container A is irrigated by the pre-irrigation device 6.
The irrigated seedling raising container A reaches below the seed supply device 7, and is supplied with seeds by the seed supply device 7.

In the post-irrigation sowing mode, the seedling-raising container A supplied with seeds reaches the post-irrigating device 6, and the bed soil and seeds in the seedling-raising container A are irrigated.
The seedling raising container A is further transported to be supplied with seeds, reaches below the soil covering supply device 8, and is supplied with covering soil by the soil covering supply device 8.
The seedling raising container A, which has been supplied with water by the irrigation device 6, drains excess water from the drainage hole (not shown) provided on the bottom of the seedling raising container A, and if left as it is, it will contaminate the sowing work site. However, since the seeding device H of the present invention is provided with the water receiving sheet 30 below the irrigation device 6, the water receiving sheet 30 can receive drainage from the seedling raising container A.

In this case, the seeding device H of the present invention is configured so that the seeding operation can be performed by selecting pre-irrigation in which the bed soil is watered before the seeds are supplied, and post-irrigation in which the soil is watered after the seeds are supplied. Since the water receiving sheet 30 is formed with a length that is located below both the pre-irrigation device 6 and the post-irrigation device 6 provided, the water receiving sheet 30 can be used from the seedling raising container A regardless of the sowing form. can receive wastewater.

A plurality of mounting holes 34 are arranged in parallel at predetermined intervals in the side part 32 of the water receiving sheet 30 in the conveyance direction of the seedling raising container A, and one end of the hanging tool 38 is connected to the sheet mounting hole 34. Since the other end of the hanging tool 38 is locked to the transfer table frame 36 of the transfer table 1, the water receiving sheet 30 can be easily attached to and removed from the transfer table frame 36 of the transfer table 1, making maintenance easy. do.
Therefore, the paddy receiving box 26 is attached to the transfer table 1 below the seed supply device 7, but the paddy receiving box 26 is installed before the water receiving sheet 30 is attached, and the paddy receiving box 26 is hung after the paddy receiving box 26 is attached. It is only necessary to attach the water receiving sheet 30 using the equipment 38, and in this respect as well, the water receiving sheet 30 can be easily attached to and removed from the transfer table frame 36 of the transfer table 1, making maintenance easier.

In this case, the frame side mounting hole 37 of the transfer table frame 36, the hanging tool 38, and the sheet attachment hole 34 of the water receiving sheet 30 are such that the upper end edge 40 of the water receiving sheet 30 is at least connected to the transfer table frame. 36, the upper edge 40 of the water receiving sheet 30 is always located on the side of the transfer platform frame 36, and the transfer platform A gap between the frame 36 and the water receiving sheet 30 is not created on the side of the lower end of the frame 36, and water from the irrigation device 6 is prevented from scattering to the outside of the transfer table frame 36 of the transfer table 1.

Furthermore, a drive sprocket 42 for transmission of the transfer means 2 is provided on either the left or right transfer frame 36 of the transfer frame 36 of the transfer table 1, and a cover rail cover 43 is provided on the outside of the drive sprocket 42 for transmission. The rail cover 43 is provided with a frame-side mounting hole 37, and the water receiving sheet 30 is suspended by a hanging fixture 38 that is engaged with the frame-side mounting hole 37. Even if the transfer table frame 36 has a built-in transmission drive sprocket 42 and a chain (not shown), it is possible to easily provide a frame-side mounting hole 37, and a water receptacle can be installed in this frame-side mounting hole 37 using a hanging tool 38. The sheet 30 can be suspended from the transfer table frame 36 without any gaps.

Of the transfer table frames 36, the transfer table frame 36 on which the transmission driving sprocket 42 is not provided is provided with a protrusion that projects downward or sideways on the outer edge of the upper plate 45 of the transfer table frame 36. 46, a frame-side attachment hole 37 with which a hanging tool 38 engages is provided in the protrusion 46, and the water receiving sheet 30 is suspended by the hanging tool 38 engaged with the frame-side attachment hole 37. I can do it.

DESCRIPTION OF SYMBOLS 1...Transfer table, 2...Transfer means, 3...Support leg, 4...Bed soil supply device, 5...Bed soil leveling brush, 6...Irrigation device, 7...Seed supply device, 8...Soil cover supply device, 10...Bed soil Supply frame, 11...Bed soil supply hopper, 12...Bed soil supply belt, 15...Irrigation frame, 16...Irrigation pipe, 20...Seeding frame, 21...Seed supply hopper, 22...Seed supply port, 23...Flowing grain board, 25... Horizontal axis feeding roll, 30... Water receiving sheet, 31... Bottom, 32... Side, 34... Sheet mounting hole, 35... Annular metal fitting, 36... Transfer table frame, 37... Frame side mounting hole, 38... Hanging installation Tools, 40... Upper edge, 41... Arc portion, 42... Drive sprocket for transmission, 43... Rail cover, 45... Upper plate, 46... Projection, 50... Drainage nozzle, 51... Drainage hose.

Claims (8)

At a position above the transfer table 1 having a transfer means 2 for horizontally transferring the seedling raising container A from the starting end side to the terminal end side, there is a bed soil supplying device 4 for supplying bed soil into the seedling raising container A from above, An irrigation device 6 that supplies water into the seedling-raising container A from above, and a seed supply device 7 that supplies seeds into the seedling-raising container A from above are provided. A receiving sheet 30 is provided, and the water receiving sheet 30 is connected to the upper edge 40 of the water receiving sheet 30 and the transfer table 1 during the seeding operation by means of a hanging tool 38 that is engaged with a mounting hole 34 provided in the water receiving sheet 30. The water receiving sheet 30 is arranged so that there is no gap in the vertical direction relative to the lower surface of the transfer table frame 36, and the upper edge 40 of the water receiving sheet 30 is located at least at a vertical intermediate position on the side of the transfer table frame 36. Seeding equipment arranged as follows . 2. The seeding device according to claim 1, wherein the upper edge 40 of the water receiving sheet 30 is formed in a substantially horizontal state from the beginning to the end. In claim 1 or claim 2, the water receiving sheet 30 is formed by providing side portions 32 on both left and right sides of the bottom portion 31, and having rising portions 33 rising substantially vertically upward on both front and rear sides of the bottom portion 31. Seeding equipment. In claims 1 to 3, the water receiving sheet 30 is mounted such that one end of a hanging fixture 38 is engaged with a mounting hole 34 provided in the water receiving sheet 30, and the other end of the hanging fixture 38 is provided on the transfer table frame 36 side. A seeding device configured to engage with a hole 37. In claim 4, one of the left and right transfer table frames 36 is provided with a drive sprocket 42 for transmission of the transfer means 2, and a cover 43 is provided on the outer side of the drive sprocket 42 for transmission. , a seeding device in which a mounting hole 37 is provided in the cover 43. In claim 4 or claim 5, the transfer table frame 36 which is not provided with the transmission driving sprocket 42 on either the left or right side of the transfer table frame 36 has an outer edge portion of the upper plate 45 of the transfer table frame 36. The seeding device is provided with a protrusion 46 that protrudes downward or laterally, and a mounting hole 37 in which a hanging tool 38 engages. The seeding device according to any one of claims 1 to 6, wherein the hanging tool 38 for suspending the water receiving sheet 30 is formed in an S-shape having an arcuate portion 41 at the top and bottom. In claims 1 to 7, the transfer table 1 is configured such that an irrigation device 6 can be installed either before or after the seed supply device 7, or both, and the water receiving sheet 30 is installed at the front or rear of the seed supply device 7. When the irrigation devices 6 are installed on both sides, the seeding device is formed with a front-rear length located below the irrigation devices 6 on both the front and rear sides.

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