JP2001224249A - Structure for producing high-quality crop and method for ventilating soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evenly ventilate the ground where plants are planted in regular arrangement, improve quality such as the sugar content and the coloring of a fruit of a fruit tree, or the like, and increase the crop yield. SOLUTION: Furrows 1 parallel to each other are dug along the arranged direction of the fruit trees 9 at both sides of the fruit trees 9 planted in regular arrangement, and crushed stone 2 is spread over the furrows 1 to form ventilation layers 3. Soil 4 is accumulated on the ventilation layers 3 to provide surface soil layers 5, and perforated pipes 6 are buried in the ventilation layers 3, so that open ends 7 of the perforated pipes 6 for inhaling the outside air into the perforated pipes 6 may be protruded into the atmosphere, and exhausting pipes 8 for exhausting the air in the perforated pipes 6 may be protruded into the atmosphere. The outside air is inhaled from the open ends 7 into the perforated pipes 6, passed through the perforated pipes 6 and exhausted from the exhausting pipes 8. Outer air flowed in the perforated pipes 6 is supplied from the perforated pipes 6 to the ventilation layers 3, and from the ventilation layer to surface soil layers 5 to send fresh air to the rootlets of the fruit tree 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for producing high-quality crops and a soil aeration method, and more particularly to a structure and soil for producing high-quality crops capable of improving the quality of fruits such as tangerines such as sugar content and coloring. It relates to the ventilation method.

[0002]

2. Description of the Related Art Conventionally, the activity of soil microorganisms has been increased by aerating into the soil, and the respiration of grass roots has been promoted.
A technique for improving the growth of grass is known (Japanese Patent Laid-Open No. 48-48).
-13126).

In this ventilation method, first, a net-like or porous drainage pipe is installed in a recess formed on the surface of the subsoil,
Next, crushed stone is spread on the surface of the subsoil to form a crushed stone layer,
Thereafter, a net is laid on the surface of the crushed stone layer, and finally, soil is laminated on the net to form a topsoil layer.

The crushed stone layer is formed of crushed stone having a particle size of 10 to 30 mm, and a gap formed between the crushed stones forms an air passage.

[0005] The net is for preventing the soil of the topsoil layer from entering the crushed stone layer.

[0006] A ventilation pipe is connected to the drain pipe, and an opening of the ventilation pipe is exposed on the ground surface.

[0007] According to this ventilation method, the air in the drainage pipe is ventilated through the opening of the ventilation pipe, the topsoil layer is ventilated through the crushed stone layer, and excess water is collected in the drainage pipe through the crushed stone layer. The water is discharged from the drain of the drainpipe.

[0008]

However, since the above-mentioned ventilation method is a technique for improving the growth of the lawn in the first place, if the ventilation method is applied to fruit trees and vegetables as it is, the ventilation method close to the opening of the ventilation pipe. Although ventilation is possible, there is a problem that the entire field cannot be evenly ventilated.

Further, there is a problem that the ventilation in the soil is insufficient and the quality of fruits such as fruit trees such as sugar content and coloring cannot be sufficiently improved.

The present invention has been made in view of such circumstances, and an object of the present invention is to make it possible to evenly ventilate land where plants are planted in a regular arrangement, and to achieve a sugar content of fruits such as fruit trees. In other words, it is to improve the quality of coloring, etc., and to increase the yield.

[0011]

According to a first aspect of the present invention, there is provided a structure for producing a high-quality crop, wherein at least one side of a plant planted in a regular arrangement is arranged in a direction in which the plants are arranged. A trench dug along, a porcelain layer formed by laying crushed stones in the trench, a topsoil layer formed by laminating soil on the permeable layer, and a gas permeability buried in the permeable layer. It is characterized by comprising a ventilation pipe, a suction part for sucking outside air into the ventilation pipe, and a discharge part for discharging air in the ventilation pipe to the atmosphere.

The outside air is sucked into the ventilation pipe from the suction part, passes through the ventilation pipe, and is discharged from the discharge part. The outside air that has flowed into the ventilation pipe is supplied from the ventilation pipe to the ventilation layer and from the ventilation layer to the topsoil layer before being discharged from the discharge portion, and fresh air is sent to the fine roots of the plant. Aeration into the soil around the fine roots of the plant, when air is supplied to the fine roots, the fine roots are activated, the growth of the fine roots is increased, the amount of fine roots is increased, and the plant is subjected to mild water stress. become.

[0013] The structure for producing a high-quality crop according to the second aspect of the present invention is the structure for producing a high-quality crop of the first aspect, wherein the suction portion is one open end of the vent pipe,
The open end protrudes into the atmosphere.

Since one open end of the ventilation pipe protrudes into the atmosphere, the amount of outside air sucked into the ventilation pipe increases.

The structure for producing a high-quality crop according to the third aspect of the present invention is the structure for producing a high-quality crop of the first aspect of the present invention, wherein the suction section is a suction pipe communicating with the ventilation pipe. The open end of the suction pipe protrudes into the atmosphere.

Since the open end of the suction pipe as the suction section protrudes into the atmosphere, the amount of outside air sucked into the ventilation pipe increases.

According to a fourth aspect of the present invention, there is provided the structure for producing a high-quality crop according to any one of the first to third aspects, wherein the discharge portion communicates with the ventilation pipe. A discharge pipe, wherein the discharge pipe protrudes into the atmosphere from the topsoil layer, and an open end of the discharge pipe is located at a position higher than a top of the plant.

The amount of air discharged from the ventilation pipe is increased, and ventilation in the soil is promoted.

According to a fifth aspect of the present invention, there is provided the structure for producing a high-quality crop according to the fourth aspect of the present invention, wherein the air in the ventilation pipe is introduced into the atmosphere at the open end of the discharge pipe. A ventilator for discharging is mounted.

The amount of air discharged from the ventilation pipe is greatly increased, and ventilation in the soil is promoted.

According to a sixth aspect of the present invention, there is provided the structure for producing a high-quality crop according to any one of the first to fifth aspects, wherein the ventilation pipe is inclined with respect to a horizontal plane. It is characterized by having.

Water that has entered the ventilation pipe from the top soil layer through the ventilation layer is discharged from one of the ventilation pipes, and the ventilation pipe performs a drainage function.

According to a seventh aspect of the present invention, there is provided the structure for producing a high-quality crop according to any one of the first to sixth aspects, wherein the inner diameter of the ventilation pipe is about 50 to 15.
0 mm.

When the inner diameter of the ventilation pipe is 50 mm or less, the frictional resistance of the air in the ventilation pipe becomes large, and the air permeability deteriorates. Further, the surface area of the ventilation pipe becomes small, the amount of carbon dioxide discharged from the soil and the supply of oxygen. The amount is reduced. In contrast,
If the inner diameter of the ventilation pipe is 150 mm or more, excessive ventilation will occur, resulting in insufficient moisture in the soil.

The soil aeration method according to the invention of claim 8 is a first step of digging a groove along at least one side of the plants planted in a regular arrangement along the direction in which the plants are arranged, and laying crushed stone in the groove. A second step of forming a ventilation layer by laying soil on the ventilation layer of the groove to form a topsoil layer, and a fourth step of burying a ventilation pipe having air permeability in the ventilation layer.
The method includes a fifth step of projecting, into the atmosphere, a suction part that sucks outside air into the ventilation pipe, and a sixth step of projecting a discharge part that discharges air from the ventilation pipe into the atmosphere.

By this method, a structure for producing a high-quality crop is formed. Outside air is drawn into the ventilation pipe from the suction section,
It passes through the ventilation pipe and is discharged from the discharge part. The outside air that has flowed into the ventilation pipe is supplied from the ventilation pipe to the ventilation layer and from the ventilation layer to the topsoil layer before being discharged from the discharge portion, and fresh air is sent to the fine roots of the plant. When aerating into the soil around the fine roots of the plant and supplying air to the fine roots, the fine roots are activated,
The growth of fine roots is promoted and the amount of fine roots increases.

According to a ninth aspect of the present invention, there is provided a structure for producing a high-quality crop, comprising: a trench dug in the ground; a ventilation layer formed by laying crushed stone in the trench; and soil laminated on the ventilation layer. A topsoil layer formed with plant roots, a vent pipe having air permeability buried in the vent layer, a suction part for sucking outside air into the vent pipe, and discharging air in the vent pipe to the atmosphere. And a discharge section that performs the discharge.

The outside air is sucked into the ventilation pipe from the suction part, passes through the ventilation pipe, and is discharged from the discharge part. The outside air that has flowed into the ventilation pipe is supplied from the ventilation pipe to the ventilation layer and the topsoil layer before being discharged from the discharge portion, and fresh air is sent to the fine roots of the plant. When air is supplied to the fine roots, the fine roots are activated, the growth of the fine roots is promoted, the amount of the fine roots is increased, and a slight water stress is given to the plant.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a structure for producing a high-quality crop according to an embodiment of the present invention cut in parallel to the arrangement direction of fruit trees, and FIG. 2 is a diagram showing the structure for producing a high-quality crop shown in FIG. FIG. 3 is a cross-sectional view cut at a right angle to the arrangement direction, FIG. 3 is an enlarged cross-sectional view of a part of the high-quality crop production structure of FIG. 2, and FIG. 4 is a diagram showing the relationship between the arrangement of fruit trees and grooves.

The structure for producing a high-quality crop includes a groove 1,
A ventilation layer 3 formed by laying crushed stones 2 in the groove 1, a topsoil layer 5 formed by laminating soil 4 on the ventilation layer 3, and a ventilation layer 3
(A ventilating pipe having air permeability) 6, an open end (suction portion) 7 for sucking outside air into the porous pipe 6, and a discharge pipe (discharge) for discharging air in the porous pipe 6 to the atmosphere. 8).

As shown in FIG. 4, the grooves 1 are dug on both sides of a fruit tree (plant) 9 planted in a regular arrangement along the arrangement direction A of the fruit trees 9 in parallel. In the case of the fruit tree 9, the length B from the implantation position a to the center of the groove 1 is 50 to 150c.
m. In the case of vegetables not shown, the length B from the implantation position a to the center of the groove is 10 to 50 cm. Groove 1
Has a width b of 25 cm and a depth c of 45 cm (see FIG. 3). Regarding the width b of the groove 1, the crushed stone 2
Is preferably set to 20 to 30 cm so as to be arranged.

The crushed stones 2 constituting the ventilation layer 3 include, in addition to crushed stones having a predetermined size (particle diameter: 1 to 40 mm), for example, gravel, shells, charcoal, plastic granules, and foam molded products. Or, those that do not corrode, such as mixtures thereof, are included.

The depth d of the ventilation layer 3 is 10 to 20 cm. From the upper part of the porous tube 6 embedded in the ventilation layer 3, the ventilation layer 3
The depth e to the surface is 5 cm. In this embodiment, the depth d of the gas permeable layer 3 is 10 to 20 cm, and the width b of the gas permeable layer 3 (the width of the groove 1) is 25 cm. However, as in this example, it is preferable that each dimension is within 50 cm. .

The perforated tube 6 has a number of small holes.
As the perforated pipe 6, a synthetic resin corrugated pipe having flexibility is suitable for construction, but a perforated straight pipe may be used. The material of the porous tube 6 is a thermoplastic resin such as polyethylene, polyvinyl chloride, or polypropylene, or a thermosetting resin. A nonwoven fabric (not shown) is wound around the outer peripheral surface of the porous tube 6 to prevent clogging with sand or the like. However, a nonwoven fabric is not always necessary. The ventilation pipe may be a mesh pipe other than the porous pipe 6.

It is desirable that the inner diameter g of the perforated tube 6 be 50 to 150 mm. When the inner diameter g of the perforated tube 6 becomes 50 mm or less, the air friction resistance in the perforated tube 6 increases, the air permeability deteriorates, and the surface area of the perforated tube 6 decreases. The supply is reduced. Conversely, if the inner diameter of the perforated tube 6 is 150 mm or more, excessive ventilation will occur, which will cause a shortage of water in the soil and increase the material cost. In this embodiment, the outer diameter f of the perforated tube 6 is 65
mm and the inner diameter g are 60 mm.

The tube axis of the porous tube 6 is inclined with respect to the horizontal plane. That is, in this embodiment, in order to give the perforated tube 6 a drainage function in addition to the ventilation function, one end portion 6a of the perforated tube 6
Is lower than the other end 6b.

The discharge pipe 8 is connected to the other end 6b of the perforated pipe 6. Examples of the discharge pipe 8 include a synthetic resin pipe and a metal pipe. A synthetic resin pipe is desirable, and a vinyl chloride pipe is particularly suitable. A ventilator 10 is attached to the open end 8a of the discharge pipe 8. The ventilator 10 rotates by wind power, sucks air in the perforated tube 6 and discharges it to the atmosphere. Ventilator 10 is a branch of fruit tree 9,
It is located slightly higher than the top of the fruit tree 9 so that the wind toward the ventilator 10 is not blocked by the leaves and fruits (see FIG. 1).

The depth h of the topsoil layer 5 is 20 cm.

Next, the construction method (soil aeration method) of the structure for producing a high-quality crop will be described.

FIGS. 5 to 9 are views for explaining a method of constructing the high-quality crop production structure of FIG.

First, as shown in FIGS. 4 and 5, grooves 1 parallel to each other are dug along both sides of fruit trees 9 planted in a regular arrangement along the direction of arrangement of fruit trees 9 (first step). The width b and depth c of the groove 1 are as described above.

The depth c at one end of the groove 1 is changed to the depth c at the other end.
It is also possible to provide a drainage function to the perforated pipe 6 by inclining the pipe axis of the perforated pipe 6 to be provided later with respect to the horizontal plane, or to adjust the depth c of the groove 1. Instead, the depth c of the groove 1 is kept constant, and the amount of backfill of the crushed stone 2 described later (depth i of the crushed stone layer from the groove bottom to the lower part of the perforated pipe 6)
May be adjusted according to the location of the groove 1 so that the perforated tube 6 is inclined. For example, the depth i at one end of the groove 1 is made larger than the depth i at the other end. When the groove 1 is dug in this step, the groove 5 is cut in a direction perpendicular to the groove 1 together with the excavation of the groove 1.
Dig 0 (see FIG. 1).

Next, as shown in FIG. 6, crushed stones 2 are spread over the groove 1, and the groove 1 is extended from the bottom surface of the groove 1 to 2.0 to 5.0 cm.
Is backfilled (second step).

Thereafter, as shown in FIG. 7, the porous tube 6 is laid almost at the center of the groove 1 (the center in the direction of the width b of the groove) (fourth).
Process). In an actual operation, a plurality of perforated tubes 6 may be connected to form one perforated tube 6, or a long tube may be used.

Then, a discharge pipe 8 for discharging air in the porous pipe 6 is connected to the other end 6b of the porous pipe 6, and a ventilator 10 is attached to an open end 8a of the discharge pipe 8.

As the discharge pipe 8, when the discharge pipe 8 is started, the ventilator 10 is formed by the branches, leaves and fruits of the fruit tree 9.
A non-perforated pipe having a length slightly higher than the top of the fruit tree 9 is used so that the wind to the wind is not blocked.

Thereafter, as shown in FIG. 8, the crushed stone 2 is further packed to a position 2 to 5 cm above the porous tube 6 (second step). Thus, the ventilation layer 3 is formed around the perforated tube 6. Further, although the discharge pipe 8 is vertically supported by the crushed stone 2, the discharge pipe 8 may be surely supported by using a splint (not shown) (sixth step).

Finally, as shown in FIG. 9, the soil 4 is buried on the ventilation layer 3 to form the topsoil layer 5 (third step).
At this time, as shown in FIG.
And is exposed to the atmosphere (fifth step).

The outside air is sucked from the open end 7 of the perforated tube 6,
It passes through the perforated pipe 6 and is discharged from the discharge pipe 8. Perforated pipe 6
The outside air which has flowed into the inside is supplied to the ventilation layer 3 through the small holes of the perforated pipe 6, from the ventilation layer 3 to the topsoil layer 5 before being discharged from the ventilator 10 of the discharge pipe 8, and freshly added to the fine roots of the fruit tree 9. Air is sent. In this embodiment, the ventilator 10 is attached to the open end 8a of the discharge pipe 8, and since the ventilator 10 is located at a position higher than the top of the fruit tree 9, the wind is not blocked by the branches, leaves and fruits of the fruit tree 9, The rotation of the ventilator 10 is ensured, and natural ventilation is performed reliably and sufficiently.

When air is supplied into the soil around the fine roots of the fruit tree 9 and air is supplied to the fine roots, the fine roots are activated, the growth of the fine roots is increased, the amount of the fine roots is increased, and the resistance to pests and insects is reduced. Becomes larger.

FIG. 12 is a graph showing the amount of oxygen consumption indicating the activity of fine roots (the amount of oxygen consumed per gram of dry matter of fine roots in 5 hours).

In the case where ventilation in the soil is performed using the high-quality crop production structure or the soil aeration method of this embodiment, and the case where a perforated pipe 6 having a pipe diameter of 100 mm is used, C and a pipe diameter of 65 mm As shown in FIG. 12, the oxygen consumption of each of the cases D using the perforated pipe 6 is that in the case where the ventilation in the soil is not performed, and the case A in which the straw is laid and the case B in the case of the bare ground, respectively. Oxygen consumption was significantly higher than that of

Since the pipe axis of the perforated pipe 6 is inclined with respect to the horizontal plane, the perforated pipe 6 passes through the ventilation layer 3 from the topsoil layer 5.
The water that has entered can be discharged from one end 6a of the perforated tube 6.

According to the structure for producing high-quality crops of this embodiment, ventilation in the soil around the fine roots of the fruit tree 9 is promoted, so that the growth of the fine roots increases, the amount of the fine roots increases, and the fruit As the amount increases, a slight water stress is applied to the fruit tree 9, so that the quality of the fruit such as sugar content and color is improved.

For example, as shown in FIG. 13, the sugar content of oranges is significantly higher than when no ventilation is performed in the soil. According to the sugar content test (measured by a refractometer),
When the straw is laid, the sugar content of the fruit of A is 10.40 Brix
%, Whereas in bare land the fruit of B had a sugar content of 1
0.25 Brix%, and when the ventilation in the soil is performed using a ventilator, the sugar content of the C and D fruits is 1 respectively.
1.50 Brix%. Here, Brix% indicates the percent concentration of soluble solids (such as sugar) contained in the sample.

As shown in FIG. 14, the content of citric acid, which determines the sourness of tangerines, was reduced as compared with the case where ventilation in the soil was not performed. According to the citric acid content test (spot titration method), when the straw is laid, the fruit of A has a citric acid content of 1.0%, and when bare, the ventilation in the soil is performed using B and a ventilator. When the citric acid content of the fruit with C was 0.8% when performed, the citric acid content of the fruit of D was 0.7% when the ventilation in the soil was performed using a ventilator. there were.

Further, the numerical value indicating the degree of coloring of oranges is
As shown in FIG. 15, the value was higher than when no ventilation in the soil was performed. According to the coloring test (coloring standard method of the Federation of Kumamoto Fruit Agriculture Cooperative Association), the value of A was 9.0 when the straw was laid and B was 9.0 in the case of bare ground. When the inside was ventilated, the numerical value of the fruit of C was 9.6, and when ventilated in the soil using a ventilator, the numerical value of the fruit of D was 9.8.

FIGS. 10 and 11 show a high-quality crop production structure according to another embodiment of the present invention, and are sectional views cut in parallel to the arrangement direction of fruit trees. Portions common to the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted.

In the above-described embodiment, the soil 4
When the top soil layer 5 is formed by backfilling, the open end 7 of the perforated tube 6 is exposed to the atmosphere, and the outside air is sucked from the open end 7. However, in the embodiment of FIG. The open end 7 is embedded in the gas permeable layer 3, a suction pipe (suction part) 28 is connected to one end 6a of the perforated pipe 6, and the open end of the suction pipe 28 is raised so as to protrude into the atmosphere. In the embodiment of FIG. 11, the open end 7 of the perforated tube 6 is embedded in the gas permeable layer 3, and the suction tube 28 is connected to one end 6 a of the perforated tube 6.
Was opened so as to protrude into the atmosphere. Further, a discharge pipe 18 was connected to the middle of the perforated pipe 6, and a ventilator 20 was attached to the open end 18 a of the discharge pipe 18.

According to the embodiment shown in FIG. 10, it is possible to obtain the same effect as the above-described embodiment.

According to the embodiment shown in FIG. 11, when the porous tube 6 is long, it is possible to prevent the ability to discharge air from the porous tube 6 from being reduced.

In each of the above embodiments, the case where the present invention is applied to the fruit tree 9 has been described. However, the present invention can be applied to plants such as vegetables and ornamental plants.

Further, in each of the above-described embodiments, the case where the grooves 1 are dug along the arrangement direction of the fruit trees 9 on both sides of the fruit trees 9 planted in a regular arrangement has been described. For example, the trench 1 may be dug along only one side of the fruit trees 9 implanted in a regular arrangement along the arrangement direction of the fruit trees 9,
A trench may be dug around the fruit tree 9.

Further, as shown in FIG.
It may be dug almost directly under such plants. FIG. 16 is a sectional view showing a structure for producing a high-quality crop according to another embodiment of the present invention. Portions common to the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the ventilation pipe 6 is located almost directly below the fruit tree 9. The outside air flowing into the ventilation pipe 6 is supplied from the ventilation pipe 6 to the ventilation layer 3 and the topsoil layer 5, and fresh air is sent to the fine roots of the plant. The roots of the fruit tree 9 propagate around the ventilation tube 6.

According to this embodiment, the same effect as in the above-described embodiment can be obtained.

In each of the above-described embodiments, a case has been described in which a ventilator that operates using wind power as a drive source is used. However, as a modified example, a ventilator that operates using a motor or the like as a drive source may be used. . This modification is effective when the present invention is implemented in a house.

[0069]

As described above, according to the structure for producing a high-quality crop of the first or ninth aspect of the present invention, the quality of a plant fruit such as sugar content and coloring or the quality of the plant itself is improved, And the yield of high quality crops increases.

According to the structure for producing a high quality crop of the second aspect of the present invention, since the open end of one end of the ventilation pipe projects into the atmosphere, the amount of outside air sucked into the ventilation pipe increases, and the fine roots A lot of air can be supplied.

According to the structure for producing high-quality crops of the third aspect of the present invention, the amount of outside air sucked into the ventilation pipe increases, and more air can be supplied to the fine roots.

According to the structure for producing a high quality crop of the fourth aspect of the present invention, the amount of air discharged from the ventilation pipe is increased, and ventilation in the soil is further promoted.

According to the structure for producing a high-quality crop of the fifth aspect of the present invention, the amount of air discharged from the ventilation pipe is greatly increased, ventilation in the soil is further promoted, and the sugar content and coloring of plant fruits and the like are improved. Etc. quality is further improved.

According to the structure for producing a high-quality crop of the sixth aspect of the present invention, since the ventilation pipe is inclined with respect to the horizontal plane,
Water that has entered the ventilation pipe from the topsoil layer through the ventilation layer can be discharged from one end of the ventilation pipe, and the ventilation pipe exhibits a drainage function.

According to the structure for producing high-quality crops of the invention of claim 7, it is possible to prevent the amount of carbon dioxide discharged from the soil and the amount of oxygen supplied from being reduced, and the ventilation becomes excessive. Since the lack of moisture in the inside can be prevented, appropriate ventilation can be realized, and the quality of the fruit of the plant can be surely improved.

According to the soil aeration method of the invention of claim 8,
The fine roots are activated by the aeration in the soil, the growth of the fine roots is promoted and the amount of the fine roots is increased, and the plant is given a slight water stress, so that the sugar content of the fruit of the plant,
The quality such as coloring and the quality of the plant itself are improved, and the resistance to pests is increased, and the yield of high quality crops is increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a structure for producing a high-quality crop according to an embodiment of the present invention, which is cut in parallel to a direction in which fruit trees are arranged.

FIG. 2 is a cross-sectional view of the structure for producing high-quality crops of FIG. 1 cut at a right angle to the arrangement direction of fruit trees.

FIG. 3 is an enlarged sectional view of a part of the high-quality crop production structure of FIG. 2;

FIG. 4 is a diagram showing the relationship between the arrangement of fruit trees and grooves.

FIG. 5 is a diagram for explaining a method of constructing the high-quality crop production structure of FIG. 1;

FIG. 6 is a view for explaining a method of constructing the high-quality crop production structure of FIG. 1;

FIG. 7 is a diagram for explaining a method of constructing the high-quality crop production structure of FIG. 1;

FIG. 8 is a diagram for explaining a method of constructing the high-quality crop production structure of FIG. 1;

FIG. 9 is a diagram for explaining a method of constructing the high-quality crop production structure of FIG. 1;

FIG. 10 is a cross-sectional view showing a structure for producing a high-quality crop according to another embodiment of the present invention, which is cut in parallel to a direction in which fruit trees are arranged.

FIG. 11 is a cross-sectional view showing a structure for producing a high-quality crop according to another embodiment of the present invention, which is cut in parallel to the arrangement direction of fruit trees.

FIG. 12 is a graph showing oxygen consumption of fine roots.

FIG. 13 is a graph showing the sugar content of fruits.

FIG. 14 is a graph showing the citric acid content of fruits.

FIG. 15 is a graph showing fruit coloring.

FIG. 16 is a sectional view showing a structure for producing a high-quality crop according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 groove 2 crushed stone 3 ventilation layer 4 soil 5 topsoil layer 6 perforated pipe 7 open end of perforated pipe 8, 18 discharge pipe 8a, 18 open end of discharge pipe 9 fruit tree 10, 20 ventilator 28 suction pipe

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroshi Aikawa 2566 Toyofuku, Matsubashi-cho, Shimomashiro-gun, Kumamoto Prefecture

Claims (9)

[Claims] 1. A groove dug along the arrangement direction of the plants on at least one side of the plants planted in a regular arrangement; a ventilation layer formed by laying crushed stones in the grooves; A topsoil layer formed by laminating soil; a ventilating pipe having air permeability buried in the ventilating layer; a suction unit for sucking outside air into the ventilating pipe; and discharging air in the ventilating pipe to the atmosphere. A structure for producing high-quality crops, comprising a discharge section. 2. The structure for producing a high-quality crop according to claim 1, wherein the suction portion is one open end of the ventilation pipe, and the open end protrudes into the atmosphere. 3. The structure for producing high-quality crops according to claim 1, wherein said suction section is a suction pipe communicating with said ventilation pipe, and an open end of said suction pipe protrudes into the atmosphere. body. 4. The discharge pipe communicates with the vent pipe, the discharge pipe protruding from the topsoil layer to the atmosphere, and the open end of the discharge pipe is located at a position higher than the top of the plant. The structure for producing a high-quality crop according to any one of claims 1 to 3, characterized in that: 5. The structure for producing high-quality crops according to claim 4, wherein a ventilator for discharging air in the ventilation pipe to the atmosphere is mounted at an open end of the discharge pipe. 6. The structure for producing a high-quality crop according to claim 1, wherein the ventilation pipe is inclined with respect to a horizontal plane. 7. The vent pipe has an inner diameter of about 50 to 150 mm.
The structure for producing a high-quality crop according to any one of claims 1 to 6, wherein 8. A method of digging a ditch on at least one side of a plant planted in a regular arrangement along a direction in which the plants are arranged.
A second step of forming a ventilation layer by laying crushed stones in the grooves, a third step of laminating soil on the ventilation layer of the grooves to form a topsoil layer, and a step of forming a ventilation layer in the ventilation layers. A fourth step of embedding a trachea, a fifth step of projecting an inhalation part that inhales outside air into the ventilation pipe into the atmosphere, and a sixth step of projecting a discharge part that discharges air in the ventilation pipe into the atmosphere. A soil ventilation method characterized by the above-mentioned. 9. A trench dug in the ground, a ventilation layer formed by laying crushed stones in the trench, a topsoil layer formed by laminating soil on the ventilation layer and having plant roots, A ventilating pipe having air permeability buried in the ventilating layer, a suction part for sucking outside air into the ventilating pipe, and a discharging part for discharging air in the ventilating pipe to the atmosphere. High quality crop production structure.