JP4042269B2 - Porting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to mat seedling raising, seedling treatment and transplantation of the mat seedling.
[0002]
[Prior art]
As disclosed in JP-A-8-84516, the mat seedlings are rolled in a roll shape while lying down so that the seedling leaves are on the inside and the seedling floor is on the outer peripheral side. A seedling transplanter that loads a roll seedling, feeds out a mat seedling from the winding end side of the roll seedling, and takes seedlings one by one from the end of the mat seedling by a seedling planting device and plantes them on a field Is disclosed. In this seedling transplanter, when winding the mat seedlings in a roll shape, the mat seedlings are fed out from the outer periphery side of the roll seedlings that are made by rolling the mat seedlings in a roll shape while winding the leaves of the seedlings. Therefore, the leaves of the mat seedling supplied to the seedling picking position of the seedling planting device fall to the roll seedling side, that is, the side away from the seedling planting device, and the mat seedling leaves are in the seedling planting device. So that the seedling planting device can act on the seedling floor without damaging the seedling leaves and scrape the seedling properly to properly plant the seedling in the field. It has become.
[0003]
[Problems to be solved by the invention]
However, according to the above-described conventional seedling transplanter, when the mat seedling is wound up in a roll shape, it is necessary to roll the mat seedling in a state where the seedling leaf is wound up and tilted to the start end side, and the mat seedling is formed. It takes time and effort to wind up.
[0004]
[Means for Solving the Problems]
The present invention has taken the following technical means to solve the above problems.
That is, it is slightly inclined in the vertical direction, and a plurality of vertical liquid flow grooves (9) are provided on the bottom surface in a straight line without branching, crossing or joining, and supplying nutrient solution or water to the upper side of the inclination Use a long pool (1) provided with a mouth (2) and a drainage port (5) for collecting nutrient solution or water on the lower side of the slope, and the pool (1) has a thickness of 5 mm . Long mat seedlings are laid on the pool (1) with a floating deterrent plate (11) that lays the urethane mat (a), which is a seedling raising material, sowing seed pods, and prevents the seed pods from rising from the urethane mat (a). And rolled up the mat seedlings in a roll shape while rolling the leaves of the long mat seedlings that were nurtured to the end side, making a roll seedling (r). It is loaded into the transplanter (20), and the roll seedling (r) is wound in the seedling transplanter (20). Take feed mat seedlings Naeno base (30) from the terminal side, the mat seedling leaf plate configured seedlings regulation of the end of the seedling (39) abuts with leaf seedling planting the apparatus (32 The seedling planting device (32) from the end of the mat seedlings was used to transplant seedlings one by one at the seedling picking position (38a) and plant them in the field.
Accordingly, the liquid supply is made to be slightly inclined in the vertical direction, and a plurality of vertical liquid flow grooves (9) are provided on the bottom surface in a straight line without branching, crossing or joining, and supplying nutrient solution or water to the upper side of the inclination. Use a long pool (1) provided with a mouth (2) and a drainage port (5) for collecting nutrient solution or water on the lower side of the slope, and the pool (1) has a thickness of 5 mm . Long mat seedlings are laid on the pool (1) with a floating deterrent plate (11) that lays the urethane mat (a), which is a seedling raising material, sowing seed pods, and prevents the seed pods from rising from the urethane mat (a). The plurality of liquid flow grooves (9) are positioned below the nursery bed material (a) and are straight without branching, crossing or joining, and the thickness of the urethane mat (a) is 5 mm. By the above-mentioned, the soot lifting plate (11) Since it can be pressed down and sunk downward from the upper surface of the urethane mat (a), the stalk of the seedling enters the nursery part composed of the urethane mat (a) and the root of the seedling, and the leaves of the seedling The restoring force to return to the standing posture side is improved, and when the mat mat seedlings rolled up are rolled up, the seedlings overlap each other due to the winding, so the leaves of the mat seedlings are in pressure contact and fall to the end of winding A roll seedling (r) is produced by the above method. The roll seedling (r) is loaded into the seedling transplanter (20), and the mat seedling is fed out from the winding end side of the roll seedling (r). When the seedling planting device (32) takes seedlings one by one at the seedling picking position (38a) from the mat seedling that has been fed out, the seedling leaves have fallen to the winding end side. Is restored in a direction away from the operation locus of the seedling planting device (32). Further as leaves seedlings regulating body composed of plates seedlings end of the mat seedlings (39) is not crowded fallen leaves abuts seedling planting apparatus (32) side, an end portion of said mat seedlings That is, the seedling planting device (32) takes seedlings at the seedling picking position (38a) from the winding end side and plantes them in the field.
[0006]
【The invention's effect】
Therefore, a plurality of Tsuekimizo branched positioned below the nursery floor material, since it is straight without intersecting or merging, while smoothly flowing liquid in the pool, nutrient solution or liquid passage groove Even if water is allowed to flow, it can be prevented that seed pods on the nursery bed material are washed away or the posture of the seedling is deteriorated. In addition, by setting the thickness of the urethane mat (a) to 5 mm, the restoring force of the seedling leaves to return to the standing posture side is improved, so that the mat seedlings are rolled up in a state of lying down to the winding end side. -Since the seedlings are loaded into the seedling transplanter, the seedlings overlap each other when the mat seedlings are rolled up, and the leaves of the mat seedlings are pressed and fall down to the end of winding. Therefore, it is not necessary to straighten the leaves of the mat seedling, and it is possible to make a roll seedling to be loaded into the seedling transplanter by simply winding the mat seedling into a roll shape. The winding operation can be facilitated. The mat seedlings fed from the roll seedlings are taken from the lying state where the leaves of the seedlings have fallen to the winding end side until the seedling planting device takes one stock at the seedling picking position. The mat seedling is restored in a direction away from the operating trajectory , and further, the seedling regulating body composed of a plate abuts on the seedling leaf at the end of the mat seedling so that the leaf does not fall to the seedling planting device side. Can prevent the leaves from interfering with the operation trajectory of the seedling planting device, and the seedling planting device can scrape the seedlings properly by acting on the seedling floor without damaging the seedling leaves. It is possible to properly plant seedlings in the field.
[0007]
【Example】
An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a state in which a non-woven fabric a having a length of 6 m and a width of 30 cm is laid as a seedling raising material in a pool 1 in which a nutrient solution or water can be circulated to grow a rice seedling. The pool 1 has a shape that is long in the vertical direction so that a long mat seedling having a length of 6 m and a width of 30 cm can be nurtured, and has a slight inclination in the vertical direction. Or water is flowing. A liquid supply port 2 is provided on the upper side, and the nutrient solution or water in the main tank 3 is supplied from the liquid supply port 2 into the pool by the supply pump 4. A drainage port 5 is provided on the lower side, and nutrient solution or water can be collected from the drainage port 5. A drainage recovery tank 6 is provided below the drainage port 5, and nutrient solution or water in the drainage recovery tank is returned to the main tank 3 by a return pump 7 via a return liquid feed pipe 8. Thus, the nutrient solution or water can be circulated. In addition, this pool 1 becomes a structure which can accumulate a nutrient solution or water and can maintain it on the predetermined | prescribed liquid level.
[0008]
A plurality of liquid flow grooves 9 are provided on the bottom surface of the pool 1 in the vertical direction, that is, in the direction in which the circulating nutrient solution or water flows. The liquid flow grooves 9 are configured to have the same width and depth in the vertical direction and are formed in a straight line without branching, crossing or joining, so that nutrient solution or water can flow smoothly. Yes. Thereby, compared with the conventional case where there is no liquid passage groove 9 or the case where the liquid passage grooves 9 intersect vertically and horizontally, the flowing liquid in the pool 1 can be smoothly performed. It is possible to prevent the liquid temperature in the pool 1 from rising during summer and adversely affecting the seedlings.
[0009]
Moreover, as shown in FIGS. 3 and 4, a plurality of soot lifting prevention plates 11 are placed on the upper surfaces of the side wall portions 10, 10 of the pool 1. The floating prevention plate 11 is bent so as to match the shape of the side wall portions 10, 10 of the pool 1, and includes a wide portion 12 a at a portion matching the upper surface of the side wall portions 10, 10. Longitudinal elongated holes 12, 12, 12, 12 are provided at four corners. On the other hand, lifting prevention tools 13 are provided at appropriate positions on the upper surfaces of the side wall portions 10 of the pool 1. Accordingly, a plurality of lifting restraining plates 11 are placed on the pool 1 in parallel in the vertical direction, and the lifting preventing devices 13 are placed on the lifting restraining plates 11. Are inserted into the long holes 12 and are prevented from being lifted upward by the bud elongation by the lifting prevention tool 13.
[0010]
Therefore, by laying a urethane mat a which is a nursery bed material in the pool and sowing the seed mat on this urethane mat a, the seed soak absorbs the nutrient solution or water in the pool and germinates and roots. To do. The urethane mat a is made of foamable biodegradable urethane and has a thickness of about 5 mm. Then, the buds extend upward and the roots extend downward so as to be entangled with the urethane mat a. The seeds are not lifted from the urethane mat a due to the elongation of the roots, and the roots are sufficiently entangled with the urethane mat a, and the restraint plates 11 are mounted on the pool 1 until 3 to 4 days have elapsed after sowing. Thereafter, the lifting restraining plate 11 is removed, and the nutrient solution or water is circulated in the pool to raise the seedling. When the seedling is completed, the nutrient solution or water is discharged from the pool 1 and the mat seedling that has been grown for 1-2 days is drained. It takes 12 to 14 days from sowing until draining is completed.
[0011]
As shown in FIG. 3, a gap is provided between the lifting restraining plates 11 and the nursery bed material (seed seed pod) so that oxygen supply to the seed pod is not insufficient. In addition, the floating suppression plate 11 has an effect of keeping the seedling warm in winter and the like. In addition, if the said lifting suppression board 11 ... is a thing with translucency like an acrylic board etc., light can be supplied to a seedling from upper direction and the elongation of a seedling can be made favorable. In addition, by making the floating suppression plates 11 have translucency, the heat-retaining effect of the seedlings can be improved in winter.
[0012]
In addition, since the liquid flow groove 9 is located on the lower side of the nursery bed material to be placed, even if nutrient solution or water is flowed in the liquid flow groove 9, seed pods on the nursery bed material may be washed away. It can suppress that the posture of a seedling deteriorates.
[0013]
Then, the long mat seedling is wound around the winding shaft s so that the seedbed portion is on the outside in the longitudinal direction of the mat seedling, and becomes a roll seedling r. The rice is transferred by the rice transplanter 20 and transplanted to the field one by one. The winding shaft s is made of a resin pipe having a diameter of about 15 cm. The roll seedling r is pressed by hand so that the winding shaft s is brought into close contact with one end of a long mat seedling in the pool 1 so that the leaves of the seedling fall on the other end side, and then the other end It is made by rotating the winding shaft s toward the side and winding the seedling so that no gap is formed. Accordingly, since the seedlings overlap each other inside and outside the roll seedling r by winding the seedlings, the leaves of the mat seedlings are naturally brought into pressure contact with the bottom surface of the seedbed bed of the seedlings that have been wound first and fall down to the winding end side. Roll seedlings are made in the state.
[0014]
Then, the roll seedling r, which is formed by winding the mat seedling around the winding shaft s in a roll shape, is transplanted to a field in a riding type rice transplanter 20 as shown in FIG. This riding type rice transplanter 20 includes a traveling vehicle body 21 and a six-planted seedling planting portion 22.
[0015]
A pair of left and right front wheels 23, 23 and rear wheels 24, 24 are mounted on the traveling vehicle body 21, and the traveling vehicle body 21 travels by driving these front and rear wheels 23, 23, 24, 24. A pilot seat 25 is provided in the approximate center of the traveling vehicle body 21, and a steering handle 26 is provided on the front side of the pilot seat 25. The seedling planting part 22 is attached to the rear part of the traveling vehicle body 21 via a link mechanism 27, and the seedling planting part 22 is provided so as to be moved up and down by expansion and contraction of a hydraulic lifting cylinder 28. In addition, the seedling planting part 22 is configured to operate by transmitting power from the traveling vehicle body side.
[0016]
The seedling planting unit 22 mainly includes a roll seedling supply unit 29 for each strip, a seedling placement table 30 and a planting plant that can be loaded with a roll seedling r wound around a roll seedling winding shaft s. And a seedling planting device 32 for each strip, and a seedling planting device for each strip through the planting input case 33 and the planting transmission portion 31 by power from the traveling vehicle body side. 32... The roll seedlings r are supplied manually to each of the roll seedling supply units 29 for each line. The roll seedlings r of the roll seedling supply section 29 are fed as mat seedlings by driving the seedling feed belts 34 of the respective strips of the seedling mounting table 30 that are operated by transmission from the planting transmission section 31. It has become a composition to be. Since the rice seedling machine 20 loads the roll seedling r into the roll seedling supply unit 29, a large amount of seedlings can be loaded in a compact state. The number of seedling supply operations can be reduced, and labor saving of the seedling supply operation can be achieved.
[0017]
The seedling planting devices 32 are provided at both ends of a rotary case 35 that rotates about an output shaft 31b from the planting frame 31a of the planting transmission unit 31. A planting claw 36 for scraping seedlings one by one and an extrusion fork 37 for pushing out the seedling held by the planting claw 36 in a field scene are provided. The tips of the planting claws 36 of the seedling planting device 32... Operate by drawing an upper and lower loop locus T as shown in FIG. Along with the operation of the seedling planting device 32..., The seedling placement table 30 is moved left and right along the seedling placement table left and right moving guide plate 38 by the power from the planting transmission unit 31, and provided in the guide plate 38. Each seedling is sent to the seedling scraping opening 38a in the left-right direction, and the mat seedling is scraped from the seedling scraping opening 38a by the planting claw 36 of the seedling planting device 32. . Therefore, the seedling scraping opening 38a is a seedling removing position of the seedling planting device 32. A seedling regulating body 39 composed of a plate that moves left and right together with the seedling mounting table 30 is provided above the seedling scraping opening 38a, and the seedling regulating body 39 contacts the seedling leaf at the end of the mat seedling. Thus, the leaves of the seedlings are prevented from falling into the seedling planting device 32 side. In addition, the seedling mounting table 30 is configured to sequentially transfer mat-like seedlings along the seedling mounting table 30 to the seedling planting device side by the seedling feeding belt 34 at the end of the left and right movement of the seedling mounting table 30. Yes.
[0018]
By the way, since the roots of the mat seedlings are stretched by the roots entangled with the urethane mat a, which is a nursery material, and the strength is obtained, the leaves of the seedlings lying on the winding end side of the roll seedling r are the roll seedling r. Is restored to the height at which it returns to the standing posture side and smoothly contacts the seedling regulating body 39. The strength of the seed bed part that is restored from the roll seedling r so that the leaves of the seedling return to the standing posture side can be obtained by setting the thickness of the urethane mat a to 3 mm or more. In order to wind up the mat seedling in a roll shape, the nursery bed portion can be bent to some extent, and the roll seedling r can be easily handled such as transporting the roll seedling r and loading it into the roll seedling supply unit 29. Therefore, it is necessary to reduce the thickness of the nursery bed, and it is appropriate to set the thickness of the urethane mat a to 3 mm to 7 mm.
[0019]
The thickness of the urethane mat a is set to 3 mm to 7 mm so as to be approximately the same as or larger than the size of the seed soot, so that the seed soot is pressed down by the lifting restraining plate 11 and sinks downward from the upper surface of the urethane mat a. Therefore, the stem (leaf) part of the seedling enters the seedbed part composed of the urethane mat a and the root of the seedling, and the restoring force for returning the seedling leaf to the standing posture side is improved.
[0020]
As described above, the roll seedlings r are loaded into the roll seedling supply parts 29 of the strips of the rice transplanter 20, and the seedling feed belts 34 of the strips are fed from the winding end side of the roll seedlings r. The mat seedlings were fed out by driving, and the seedling leaves fell on the winding end side until the seedling planting device 32 of each strip took seedlings one by one at the seedling scraping port 38a ... A direction away from the operation locus T of the seedling planting device 32... From the lying state, that is, the roll seedling r side is restored, and the seedling leaves are not fallen into the seedling planting device 32. In the regulated state, the seedling planting device 32... Takes seedlings from the end portion of the mat seedling, that is, the winding end side, through the seedling scraping port 38 a.
[0021]
Therefore, the roll seedling r wound in a roll shape with the mat seedling lying on the winding end side is loaded into the roll seedling supply unit 29, so that the mat seedling is rolled. Since the mat seedling leaves are in pressure contact with the bottom of the seedling bed of the seedling that has been wound up first, the mat seedling leaves itself to the end of the winding, so it is necessary to correct the mat seedling leaves. The roll seedling r can be produced simply by winding the mat seedling in a roll shape, and the mat seedling winding operation can be facilitated. The mat seedlings fed from the roll seedling r are taken from the lying state in which the seedling leaves have fallen to the winding end side until the seedling planting device 32... Since the seedling planting device 32 is restored to the direction away from the operation trajectory T of the seedling planting device 32, that is, to the roll seedling r side, the mat seedling leaf does not fall inside the operation trajectory T of the seedling planting device 32. The seedling planting device 32... Acts on the seedling floor without damaging the seedling leaves, scrapes the seedling properly and properly divides the seedling, so that the seedling can be properly planted in the field. .
[0022]
In addition, since the urethane mat a serving as a nursery bed material has a predetermined air layer, the root extension into the mat a is smoothly performed and the seed pod is prevented from floating upward from the urethane mat a. The elongated roots are entangled even in the lower part of the mat a to obtain a sturdy mat seedling in the nursery. Furthermore, since the thickness of the urethane mat a is set to 3 mm or more, the nursery bed becomes strong. Therefore, since the seedbed portion becomes strong, when the mat seedling is transplanted to the field, the mat seedling is used for the right and left movement of the mat seedling by the seedling mounting table 30 and the scraping of the seedling for each strain by the seedling planting device 32. It is possible to prevent the seedlings from being expanded and contracted or torn, and the seedlings can be reliably transplanted to the field. In addition, since this urethane mat a is not dissolved by a fertilizer etc., even if it supplies fertilizer etc. during raising seedlings, there is little influence on the intensity | strength of a seedbed part.
[0023]
Further, the mat seedling on the seedling placement table 30 moves left and right with respect to the seedling placement table left and right movement guide plate 38 as the seedling placement table 30 moves left and right. On the other hand, if the mat seedling slides and the strength of the seedbed portion of the mat seedling is insufficient due to this sliding resistance, the mat seedling may shrink in the left-right direction. Since the mat seedling having the strength of the seed bed is obtained by the above-described raising seedling, the mat seedling can be prevented from shrinking in the left-right direction by using the mat seedling.
[0024]
Moreover, although the above-mentioned Example uses the urethane mat a as a nursery bed material, you may use a nonwoven fabric as a nursery bed material. Also in the case of a nonwoven fabric, it is appropriate that the thickness of the nursery bed material is 3 mm to 7 mm.
[0025]
In addition, although the above-mentioned Example seed | inoculates a seed pod on the nursery bed material of the urethane mat a, it seeds and raises seedlings, You may cover and raise a seedling on the seedling nursery material.
In order to assist in restoring the leaves of the seedlings to the standing posture side by being drawn out from the roll seedling r, a roller, a belt, or the like that is driven on the seedling placement table 30 in contact with the leaves of the mat seedlings. A seedling restoration assisting means may be provided.
[0026]
In addition, although this Example is related with the seedling transplanting machine of 6 row planting, this invention is not limited to the thing of 6 row planting. Moreover, although this Example demonstrated the riding type rice transplanter, it can utilize also in a walk type rice transplanter.
[Brief description of the drawings]
FIG. 1 is a plan view showing a pool, FIG. 2 is a side sectional view showing the pool, FIG. 3 is a front sectional view showing the pool, and FIG. 4 is a plan view showing a part of the pool. [Fig.5] Fig. 6 shows a state of raising seedlings for paddy rice using a urethane mat as a nursery bed material [Fig. 6] Side view of a riding type rice transplanter [Fig. 7] Side view showing a seedling planting part [Fig. 8] A diagram showing a part of the seedling mounting table as viewed from A in FIG.
DESCRIPTION OF SYMBOLS 1 ... Pool, 2 ... Liquid supply port, 5 ... Drainage port, 9 ... Fluid passage groove, 11 ... Lift prevention board, 20 ... Riding type rice transplanter, 30 ... Seedling mounting stand, 32 ... Seedling planting device, 34 ... seedling feeding belt, 38a ... seedling scraping opening, 39 ... seedling regulating body, a ... urethane mat, r ... roll seedling, T ... operation locus of seedling planting device

Claims (1)

Slightly inclined in the vertical direction, a plurality of vertical liquid flow grooves (9) are provided on the bottom surface in a straight line without branching, crossing or joining, and a supply port for supplying nutrient solution or water to the upper side of the inclination ( 2) and a vertically long pool (1) provided with a drainage port (5) for collecting nutrient solution or water on the inclined lower side is used, and a nursery bed with a thickness of 5 mm is used in the pool (1) Lay the material urethane mat (a) and sow seed pods, and attach a floating deterrent plate (11) to the pool (1) to prevent the seed pods from rising from the urethane mat (a) to grow long mat seedlings Then, roll up the mat seedlings in a roll shape while rolling up the leaves of the long mat seedlings that have been nurtured, and rolling them down to the end side to make roll seedlings (r), and the roll seedlings (r) are transferred to a seedling transplanter In (20), in the seedling transplanter (20), the winding end of the roll seedling (r) From the mat seedling feeding the Naeno base (30), the mat seedling leaf plate configured seedlings regulation of the end of the seedling (39) apparatus with a leaf seedling planting contacts (32) side A transplanting method in which seedlings are taken one by one at the seedling picking position (38a) by the seedling planting device (32) from the end of the mat seedling and planted in the field so as not to fall down .

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