JP5349845B2 - Multi-seat laying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for laying a mulching sheet comprising: laying a nonporous mulching sheet on the upper part of a porous mulching sheet to be laid in contact with the surface of a farm field simultaneously while superimposing the sheets on each other, and fixing the nonporous mulching sheet so as to be peeled when fixing both sides of the respective sheets in a laying direction to the surface of a farm field, so as to facilitate heat retention of the surface of the farm field and prevention of evaporation of disinfectant. <P>SOLUTION: The method for laying a mulching sheet comprises: fixedly laying the porous mulching sheet 3 on the surface of the farm field; and sowing seeds or planting seedlings on the surface of the farm field through-holes made in the porous mulching sheet 3; simultaneously laying the porous mulching sheet 3 laid in contact with the surface of the farm field, and the nonporous mulching sheet 4 for blocking the holes of the porous mulching sheet 3 from above while superimposing the sheets on top of each other; fixedly laying the nonporous mulching sheet 4 to be peeled while the porous mulching sheet 3 is fixedly laid when fixing both sides of the porous mulching sheet 3 and the nonporous mulching sheet 4 to the surface of the farm field in their laying direction. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a method for laying a multi-sheet laid on a farm scene.

2. Description of the Related Art Conventionally, a vertical multi-work machine in which a vertical part (liner forming machine) and a multi-part (laying device) are connected to the rear part of a plowing work machine provided in a traveling machine body (tractor) is provided by a vertical part on a cultivated field. The work can be performed by a method of sequentially laying a multi-sheet (hereinafter simply referred to as a sheet) fed out from the multi-part on the reed while forming the reed (for example, Patent Document 1).
Moreover, the multi part of patent document 1 supports the roll sheet which wound the sheet | seat in roll shape transversely with respect to the advancing direction, and extends the sheet | seat on a farm scene (saddle surface), and the sheet | seat laid It is composed of multi-fixing parts that are fixed by placing soil on both sides.
In addition, in the work machines as described above, a material supply unit for disinfecting dredged soil is provided immediately before the dredging and sheet laying, and a disinfectant such as crawl picrin is supplied into the tilled soil to disinfect the soil. It has already been done.
JP 2000-50746 A

The working machine shown in Patent Document 1 has an advantage that it is possible to simultaneously perform the uprighting and the sheet laying work, but with one sheet fed from one roll sheet set in the multi-feeding unit. Since it only covers the straw, there is a drawback that it is difficult to sufficiently keep the straw warm so as to promote fertilizer fermentation and microbial activity in the cold soil.
Also, for example, in areas where garlic production of garlic is active, laying perforated multi-sheets with holes for sowing or planting seedlings, and inserting and supplying garlic seeds (ball pieces) into each hole Then, it is buried in the soil and cultivated. However, in recent years, even in cold regions such as the Tohoku region, it has been required to disinfect the soil in advance with a disinfectant belonging to a powerful drug such as crawl picrin before moulding to prevent disease. In such a case, simply covering the bowl supplied with the disinfectant with a perforated multi-sheet will cause the chemical components to evaporate into the atmosphere together with the soil moisture from each hole. There is a problem of leaking into the atmosphere.
Therefore, when cultivating as described above, first cover the planned cultivation site with a non-porous multi-sheet while disinfecting the soil, peel off the non-porous multi-sheet after the soil disinfection, and stand on this field scene. However, since the perforated multi-sheet is laid and the garlic seeding operation is performed, there is a problem that the cultivation cost is extremely complicated and time-consuming.
In view of the above circumstances, an object of the present invention is to easily lay a perforated multi-sheet and a non-perforated multi-sheet in a farm scene to easily keep the farm scene warm and prevent the disinfectant from evaporating.

The multi-sheet laying method of the present invention for solving the above-mentioned problem is as follows. First, the perforated multi-sheet 3 is laid and fixed on the field scene, and the field scene is inserted through the hole formed in the perforated multi-sheet 3. In the multi-sheet laying method in which seeds or seedlings are seeded or planted, a perforated multi-sheet 3 laid in contact with the field scene and a non-porous multi-sheet 4 that closes the holes of the perforated multi-sheet 3 from above are overlapped However, when laying simultaneously, the width of the non-porous multi-sheet 4 is made narrower than the width of the perforated multi-sheet 3, so that the laying fixing allowance H with the non-porous multi-sheet 4 is set on both sides of the perforated multi-sheet 3. The porous multi-sheet 3 is formed on the both sides of the perforated multi-sheet 3 by folding the soil into the ground and turning it over and fixing the soil. multi-seat 3 In conditions such as while retaining the laying fixed stripping nonporous multi-seat 4 can, as characterized by fixing the both sides of the laying direction of the perforated multi-seat 3 and nonporous multi-seat 4 each field plane Yes.

Secondly , both sides of the perforated multi-sheet 3 are fixed to a field scene in a state where the folded portion of the perforated multi-sheet 3 does not wrap with the non-perforated multi-sheet 4 .

Thirdly , the farm scene is characterized by being a saddle face of the basket 2 formed in the farm field.

  Fourthly, the perforated multi-sheet 3 and the non-porous multi-sheet 4 are laid in the field scene while supplying soil-added materials such as disinfectant to the field scene.

  The multi-sheet laying method according to the present invention has the following effects. When a perforated multi-sheet is laid in contact with the field scene, and the non-perforated multi-sheet is laid on top of the perforated multi-sheet at the same time, and both sides of the laying direction are fixed to the field scene, By adopting the laying method to fix the sheet so that it can be peeled off, each hole drilled in the perforated multi-seat can be easily closed by the non-perforated multi-seat, thus preventing the transpiration from the hole and keeping the field scene warm. Alternatively, leakage of the disinfectant or the like into the atmosphere can be prevented, and the non-porous multi-sheet can be peeled off and seeding or planting can be easily performed. Further, since the non-porous multi-sheets are laid on top of each other when the perforated multi-sheets are laid, the laying operation can be performed efficiently and easily.

  Perforated multi-sheets and non-porous multi-sheets by making the width of non-porous multi-sheets smaller than the width of perforated multi-sheets and laying them on both sides of the multi-sheets Both sides of the sheet can be individually fixed, the non-porous multi-sheet can be easily peeled off from the perforated multi-sheet, and the non-porous multi-sheet can be removed efficiently.

  While laying the perforated multi-sheet and non-perforated multi-sheet on the surface of the ridge formed in the field, fix the non-perforated multi-sheet and perforated multi-sheet by placing soil on both sides, so that the When the multi-sheet is laid, the soil can be put on the perforated multi-sheet so as to be quickly fixed. Moreover, the non-porous multi-sheet can be easily and easily peeled off from the perforated multi-sheet by simply pulling it against the placed soil.

  By supplying perforated multi-sheets and non-porous multi-sheets to the field scene while supplying soil-added materials such as disinfectant to the field scene, it is possible to efficiently supply the disinfectant and the sheet at the same time. At the same time, the field scene to which the soil-added material is supplied can be quickly covered with the perforated multi-sheet and the non-porous multi-sheet to prevent the transpiration of the soil-added material.

  FIG. 1 is a side view showing a working mode of a working machine in which an upright multi-work machine 1 to which the present invention is applied is mounted on a traveling machine body (not shown) such as a tractor. It is a top view which shows a structure. FIG. 3 is a cross-sectional view showing a state in which a plurality of multi-sheets 3 and 4 are laid on the ridge 2 formed in the field. FIG. 4 is a perspective view showing an operation mode of removing the multi-sheet (upper sheet) 4 with the multi-sheet (lower sheet) 3 left.

  The working machine (laying work machine) in the embodiment disinfects from the front side to the rear part of the tilling work machine 5 provided in the traveling machine body in performing the work of planting garlic seeds along the eave width and eave length directions in the eaves 2. Material supply unit 6 for supplying soil-added materials such as agents or fertilizers, eaves unit 7 for erecting cultivated soil, multi-feeding unit 8 for laying lower sheet 3 and upper sheet 4, and both sheets The multi part 10 which consists of the multi fixing | fixed part 9 which fixes both sides of 3 and 4 is connected so that attachment or detachment is possible respectively.

  As a result, when the working machine in the illustrated example travels forward, first, a chemical such as chlorpicrin for soil disinfection is discharged and supplied from the material supply unit (disinfection unit) 6 to the plowed portion where the field is plowed by the tilling work unit 5. However, the ridge 2 is formed by the upright portion 7 so as to be substantially equal to the tillage width. And the upper sheet | seat 4 and the lower sheet | seat 3 which are drawn out from the multi feeding part 8 of the multi part 10 are piled up and down on this eaves 2, and both sides of both are fixed with the multi fixing | fixed part 9 on top. Thereby, the working machine can sequentially and simultaneously perform each operation such as tillage, soil disinfection, and sheet laying.

  Next, the configuration of each part of the working machine will be described in detail with reference to FIGS. The tilling work machine 5 has a tilling transmission body 11 detachably attached to a hitch portion of a three-point link type lifting mechanism provided on the rear part of the body of the tractor. This tillage transmission body 11 has a gate shape in a rear view, and supports a tillage shaft 13 in which a plurality of tillage claws 12 are planted at the lower part of the left and right frames so as to be able to rotate and constitute a rotary tillage portion 15. doing.

  Further, the tilling work machine 5 covers the upper and both sides of the tilling portion 15 with a rotary cover 16, and a rear end of a support rod 17 that extends from the tillage transmission body 11 to the rear above the rotary cover 16. The horizontal toolbar 18 is provided. The support rod 17 is provided with a horizontal holder 19 in the middle, and a plurality of breakers 20 are attached to the holder 19 so as to be vertically adjustable with a tilling crushing interval. Thereby, the breaker 20 crushes the cultivator which becomes an unplowed portion with the tilling claws 12 in a streak shape at every cultivating crushing interval to make it soft.

  The material supply unit 6 connects the medicine storage tank 21 mounted on the traveling machine body or the tilling work machine 5 and the material supply pipe 22 provided along the rear end surface of the breaker 20 with a flexible connection pipe 23. doing. Thereby, the material supply unit 6 sends the disinfectant in the medicine storage tank 21 to the material supply pipe 22 through the connection pipe 23 by a supply pump (not shown), and the inside of the tillage soil of the rod 2 formed from the lower end nozzle hole As shown by the symbol P in FIG. 3, the material can be discharged and supplied at a predetermined depth position.

  Next, the vertical multi-work machine 1 will be described. In the illustrated vertical multi-work machine 1, a working unit tool bar 26 is attached to the tool bar 18 in parallel via a plurality of brackets 25, and the upright parts facing downward are paired on both sides of the working unit tool bar 26. A frame 27 and a multi-fixed frame 28 facing rearward are respectively attached. Further, support rods 30, 30 provided on the horizontal multi-feeding portion frame 29 are attached to the middle portion of the working portion tool bar 26 so as to be adjustable in position, and the multi-feeding portion 8 supported by the multi-feeding portion frame 29 is attached to the half-high portion. Accordingly, the sheet laying work can be appropriately performed.

  In the frame structure of the upright multi-work machine 1, the upright portion 7 has the same structure as the conventional one, and the left and right upright portion frames 27 are formed with side surfaces of the trapezoidal shape of the trapezoid 2 as shown in FIG. The heel forming side walls 31 are provided, and the rear wall ends of the left and right heel forming side walls 31, 31 are connected by a celestial wall forming wall 32 that forms the top scene of the heel 2. Further, a grounding ring 33 is pivotally supported at the lower part of the left and right upright part frames 27 to support the upright part 7 on the ground. The space formed between the rotary cover 16 and the upright portion 7 of the tillage work machine 5 is covered with a rear cover 16 a provided at the rear end of the rotary cover 16.

The multi-feeding portion 8 is provided with a short holder arm 36 and a long holder arm 37 each having a sheet holder 35 at both ends of the lateral multi-feeding portion frame 29 so as to form a pair with each multi-support interval. A multi-intermediate support arm 38 is provided at the center of the feed-out part frame 29 to support and support a feed-out part frame 40 of a multi-intermediate feed-out part 39 described later.
With this configuration, the left and right holder arms 37 rotatably support the lower roll sheet 3a by inserting the sheet holder 35 into the left and right center portions of the roll core material. The left and right holder arms 36 rotatably support the upper roll sheet 4a by inserting the sheet holder 35 into the left and right center portions of the roll core material.

  In this embodiment, the lower roll sheet 3a includes a lower sheet 3 having a plurality of holes for seeding or planting regularly in a width that can cover the ridge 2 with fixing margins on both sides. A pipe-shaped roll core is wound around a predetermined length. Further, the upper roll sheet 4a is obtained by winding the upper sheet 4 of a non-porous multi-sheet having at least a celestial width of the ridge 2 around a pipe-shaped core material for a predetermined length. As the lower roll sheet 3a and the upper roll sheet 4a, those having a commercially available size can be used.

And, the lower roll sheet 3a and the upper roll sheet 4a are supported from below by a plurality of feeding rollers 41, 41, 41 provided in the multi-intermediate feeding portion 39, with the middle being supported in a substantially parallel shape in the lateral direction. The middle portion is prevented from bending due to the weight of the lower roll sheet 3a and the upper roll sheet 4a, and each sheet is smoothly fed out.
That is, the multi-intermediate feeding part 39 rotatably supports three feeding rollers 41, 41, 41 in the rectangular feeding part frame 40, and the upper and middle feeding rollers 41, 41 support the upper part. The roll sheet 4a is supported so as to be capable of rolling contact (rolling and rotating), and the lower roll sheet 3a is supported so as to be capable of rolling contact with intermediate and rear feeding rollers 41, 41.

  Further, the multi-intermediate feeding unit 39 is provided with a superposition feeding means 43 that superimposes the lower roll sheet 3a and the upper roll sheet 4a while feeding them at the front portion of the front feeding roller 41. In the illustrated example, the superposition feeding means 43 includes a roller 44 that is rotatably supported on both sides of the feeding portion frame 40 at the front portion of the front feeding roller 41, and a roller that is pivotally supported outside each roller 44 in an extended state. 44a, the superposition feeding position is provided at a height position close to the ceiling scene (farm scene) of the ridge 2, and the center part of both sheets 3 and 4 that are superposed at the time of laying is received wide to guide the rotation. Yes.

In addition, a push roller 45 that is brought into rolling contact with the upper sheet 4 laid along the slopes of both side surfaces of the ridge 2 is provided below the rear side of the both sides of the superposition feeding means 43 according to the conventional configuration. It is pivotally supported on a roller support rod 47 provided on the fixed frame 46.
Note that the outer periphery of the roller 44a is preferably formed of an elastic member such as a sponge. Moreover, the superposition | feeding-out delivery means 43 can also be made into the rod-shaped guide member which has moderate elasticity with a smooth surface other than a roller member.

  Next, the multi fixing part 9 will be described. The left and right work frames 28 support a multi-fixed frame 46 on a support shaft 48 provided at the rear end so that the multi-fixed frame 46 can swing up and down, and the multi-fixed portion 9 is installed at the rear end of the multi-fixed frame 46. doing. The multi-fixing portion 9 includes a squeezing roller 50 and an earthing wheel 51 having the same configuration as a conventional one, and is arranged in the front-rear direction so as to be able to rotate on the ground. Then, as the machine body advances, both sides of the lower sheet 3 can be driven into the ground by the squeezing rollers 50, and this portion can be put on the soil while being folded back by the earthing wheel 51 and fixed to the farm scene.

  Further, the multi-fixing part 9 in the illustrated example is provided with a spring 52 that connects the work frame 28 and the multi-fixing frame 46 below the support shaft 48, and urges the multi-fixing part 9 downward in the action posture shown by the solid line. . Further, with this configuration, it is possible to switch and hold the retracted posture in which the multi-fixed frame 49 is turned upward and downward with the support shaft 48 as a fulcrum.

  When the lower sheet 3 and the upper sheet 4 are laid on the heel 2 with the above-described structure, the laying fixing allowance (earthing allowance) H between the both side ends of the lower sheet 3 and the both ends of the upper sheet 4 covering the heel side surface As shown in FIG. 3, the sheet 3 is turned halfway by the nipping roller 50 which is in rolling contact with the laying fixing cost H being pressed by the urging force of the spring 52 as the machine body advances. And then crawl into the ground. Further, the earthing wheel 51 moves the earth outside the side of the eaves side of the eaves 2 so as to scrape the eaves 2 toward the eaves 2 side. The soil is lightly placed on both sides and fixed without laying.

  Next, with regard to the use mode of the work machine configured as described above, for example, a multi-laying method for simultaneously performing uprighting, soil disinfection, and multi-laying work suitable for garlic cultivation performed in a cold region such as the Tohoku region. explain. In this case, when the working machine described above is used to travel forward (advance) the field, first, the lower roll sheet 3a and the upper roll sheet 4a of the multi-feeding unit 8 at the position of starting the ridge formation in the field where the ridge 2 is formed. The upper sheet 4 is pulled out from the upper sheet 4 to the lower sheet 3, and both are pulled out from the upper side while being wound around the rollers 44, 44 a of the superposition feeding means 43, and are laid under the pressing roller 45. Position in the state.

  After that, when the machine is advanced, the cultivating section 15 of the cultivating work machine 5 cultivates a flat farm field, and then the material supply pipe 22 of the material supply section 6 has a material supply interval for disinfectant in the cultivated soil. The upright portion 7 forms a trapezoidal ridge 2. Next, the lower sheet 3 and the upper sheet 4 that the multi section 10 is fed out from the multi-feed section 8 are guided to the side surface of the eaves 2 that is formed by the pressing rollers 45 and fixed to the ground surface by the multi fixing section 9. By laying and fixing in sequence, it is possible to smoothly perform a series of operations such as tilling and standing of the field and multi-laying.

  As a result, the cocoon 2 is covered in a sealed state with the upper sheet 4 overlaid on the lower sheet 3 to prevent the moisture in the cocoon and the supplied disinfectant from evaporating, and the soil in the cocoon can be disinfected efficiently and promptly. Can do. After passing through the predetermined disinfection period in this way, when the upper sheet 4 is pulled up while being lifted upward along the ridge direction from one side of the ridge 2 to the other, the upper sheet 4 can be easily pulled. The top scene portion of the lower sheet 3 can be exposed. Thereby, garlic seeds can be inserted and supplied to each hole of the lower sheet 3 and can be embedded and sown at a certain depth in disinfected paddy soil. Therefore, according to the working method as described above, the cocoon 2 laid with the non-porous multi-sheet 4 overlaid on the perforated multi-sheet 3 is satisfactorily and efficiently disinfected with the soil, so that the garlic disease to be sown is sown. It is possible to prevent cultivation and to make the cultivation healthy and to carry out cultivation with a high yield.

In addition, the multi-laying work machine for performing the above-described work includes a lower roll sheet 3a of the lower sheet 3 to be laid on the farm scene side in the multi-feeding portion 8, and an upper sheet 4 to be laid on the lower sheet 3 to be laid. Since the roll sheet 4a is supported and the polymerization feeding means 43 is provided close to the field scene in front of the multi-intermediate feeding part 39, the lower sheet 3 with the upper sheet 4 superimposed on the basket 2 is placed on the ceiling. Since it feeds out in close contact with the scene, both sheets 3 and 4 can be laid smoothly without causing wrinkles.
And, by adopting a method and a configuration in which both sides of both sheets 3 and 4 are fixed by putting the soil on the both sides simultaneously by the multi-fixing part 9, the multi-fixing part 9 fixes the upper sheet 4 to the lower sheet 3. Since it can be carried out simultaneously with the soil used for fixing the sheet 3, it can be carried out efficiently and easily with an inexpensive structure by omitting special fixing means such as an adhesive.

  Therefore, the lower sheet 3 and the upper sheet 4 can be set to the multi-unit 10 with versatility simply by selecting a shape and size suitable for the laying site from various commercially available ones. At the same time, it is possible to lay with high hermeticity by a simple laying operation using a ready-made sheet. Moreover, the hole drilled in the perforated multi-sheet 3 can be closed by the non-perforated multi-sheet 4 from above the heaven width to form a double hermetic structure, and the heat insulation of the ridge 2 can be effectively and labor-saving. Can be done.

And, for the ridge 2 formed in the field, the width of the upper sheet 4 is made narrower than the width of the lower sheet 3 on the ridge surface, and laying fixing margins H are provided on both sides of the lower sheet 3 and the upper sheet 4. Therefore, the adhesiveness of the overlapping portion can be improved while fixing both sides of the lower sheet 3 and the upper sheet 4 separately, and the upper sheet 4 is in a close contact state when the fixation on both sides is released. However, since it is not bonded, the lower sheet 3 can be easily peeled off without causing problems, and the upper sheet 4 can be removed efficiently.
In addition, the overlapping part of the both sheets 3 and 4 is adhered to the whole evenly by the moisture intervening between the lower sheet 3 and the upper sheet 4 when the heel 2 has a lot of water or watering. When covering the ridge 2 only for a short period of about several days, it is possible to adopt a laying and fixing method in which the soil is not fixed on both sides of the upper sheet 4.

  In addition, when both sides of the lower sheet 3 and the upper sheet 4 are fixed by placing soil by the multi-fixing portion 9, the soil can be quickly fixed as described above, and the upper sheet 4 is removed. When performing the above, the upper sheet 4 can be easily and efficiently peeled off from the upper sheet 4 simply by pulling it upward against the soil placed from the laying end. At this time, since the upper sheet 4 is not torn, there is an advantage that it can be repeatedly used by winding it into a roll sheet without being discarded. In addition, if the upper sheet | seat 4 uses the thick thing which has intensity | strength, it will become easy to reuse and can reduce laying cost more.

As described above, the present invention lays the perforated multi-sheet 3 in contact with the field scene, and simultaneously lays the non-perforated multi-sheet 4 on the perforated multi-sheet 3 while overlapping the perforated multi-sheet 3. 3 and non-porous multi-sheet 4 laying a multi-sheet to fix the non-porous multi-sheet 4 so that the multi-sheet 4 can be peeled off while fixing the perforated multi-sheet 3 while fixing both sides of the laying direction to the field. By adopting the method, it is possible to easily block the non-porous multi-sheet 4 laid by overlapping the holes of the perforated multi-sheet 3 laid in contact with the farm scene, and to disinfect soil-added materials such as disinfectants and fertilizers. Both supply operations can be performed efficiently, and the non-porous multi-sheet 4 can prevent the transpiration of the soil-added material.
And, in the field scenes that are covered by polymerizing multiple sheets, the internal heat retention is enhanced, so that it is possible to promote the fertilizer fermentation and microbial activity in the soil with sufficient heat retention such as straw in cold areas, etc. There is a feature that can be effectively cultivated.

  In the illustrated example, the width of the non-porous multi-sheet 4 is made narrower than the width of the perforated multi-sheet 3, and the perforated multi-sheet 3 laying fixing allowance H is provided on both sides of the perforated multi-sheet 3 and the soil is placed thereon. However, the present invention is not limited to this, and both sides of the non-porous multi-sheet 4 may be fixed to the perforated multi-sheet 3 by a detachable adhesive member. The perforated multi-sheet 3 and the non-perforated multi-sheet 4 may have the same width. In this case, it is desirable that the amount of soil for fixing both the sheets 3 and 4 to be polymerized is reduced. The perforated multi-sheet 3 and the non-perforated multi-sheet 4 can be fixed individually by different fixing means. In addition, the multi-sheet laying method as described above can be similarly applied to a flat field scene in which the ridge 2 is not formed.

It is a side view which shows the structure and working state of the principal part of the working machine to which this invention is applied. It is a top view of the multi part of FIG. It is sectional drawing which shows the state which laid and fixed the lower sheet | seat and the upper sheet | seat on the fence formed in a farm field. It is a perspective view which shows the operation | work which peels off an upper sheet | seat from the state of FIG.

Explanation of symbols

1 Vertical multi-work machine 2 ３ 3 Perforated multi-sheet (lower sheet)
3a Lower roll sheet 4 Non-porous multi-sheet (upper sheet)
4a Upper roll sheet 5 Tillage working machine 6 Material supply part 7 Standing part 8 Multi feed part 9 Multi fixing part 10 Multi part 43 Superposition feed means 39 Multi intermediate feed part

Claims (4)

In the multi-sheet laying method, a perforated multi-sheet (3) is laid and fixed in a field scene, and seeds or seedlings are seeded or planted in the field scene through a hole drilled in the perforated multi-sheet (3). When laying simultaneously while overlapping the perforated multi-sheet (3) laid in contact with the surface and the non-perforated multi-sheet (4) that closes the holes of the perforated multi-sheet (3) from above , By making the width of the multi-sheet (4) narrower than the width of the perforated multi-sheet (3), laying and fixing allowance (H) with the non-porous multi-sheet (4) is formed on both sides of the perforated multi-sheet (3). The both sides of the perforated multi-sheet (3) are fixed by placing the soil on the both sides of the non-porous multi-sheet (4) while fixing the both sides of the perforated multi-sheet (3). , coercive laying fixed perforated multi-seat (3) Multi sheet in the state as stripping becomes possible while nonporous multi-seat (4), fixed on both sides of the laying direction of the perforated multi-seat (3) and the nonporous multi-seat (4), each field plane Laying method. The laying of the multi-sheet according to claim 1 , wherein both sides of the perforated multi-sheet (3) are fixed to a field scene in a state where the folded portion of the perforated multi-sheet (3) does not wrap with the non-porous multi-sheet (4). Method. The field surface, the multi-sheet laying method according to claim 1 or 2, ridge surface of the ridges (2) formed in the field. The multi-sheet according to any one of claims 1 to 3, wherein a perforated multi-sheet (3) and a non-porous multi-sheet (4) are laid in the field scene while supplying soil-added materials such as a disinfectant to the field scene. Laying method.

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