JP2005168425A - Apparatus and method for forming testing area - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for forming a testing area by which an evaluation testing area of agrochemicals can be formed in a paddy field. <P>SOLUTION: The evaluation testing area-forming apparatus for forming the evaluation testing area having a prescribed area in the field has flexible isolation plates in which a joining communication hole is formed in each end, and these isolation plates can be curved so as to constitute a circular shape in a state in which the joining communication holes are mutually joined, and a communicating and fastening means for making the interior of the circular isolation plate to communicate with the outside of the circular isolation plate by completely passing the aligned and joined communication hole through and firmly attaching the ends of the isolation plates to each other is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a test area forming apparatus and method, and more particularly to an apparatus and method for forming an agricultural chemical evaluation test area in a paddy field.

For newly developed agricultural chemicals, prior to their sale, it is necessary to evaluate in advance, for example, the medicinal effects of weeds on weeds, phytotoxicity on rice, etc., or the effects on useful organisms.
For this purpose, a simulation test of a newly developed drug has been conventionally performed in a paddy field test field. This test is carried out by forming a test area of a predetermined area isolated from the paddy field and putting a predetermined amount of chemical into this test area.

As a test section forming apparatus for forming the test section, for example, the one shown in FIGS. 1 and 2 has been known.
The test zone forming apparatus generally designated by reference numeral 1 in these drawings has an isolation wall 2 made of a flexible corrugated plate. The isolation wall 2 is generally formed into a ring-shaped square, and the lower end is inserted into the ground G of the paddy field P, so that the isolation wall 2 has the same environment as the paddy field P, but the surroundings A test area T having a predetermined area, which is substantially isolated from the paddy field P, is formed.
In order to supply water to the test section T, the isolation wall 2 is provided with a communication pipe 3 penetrating the isolation wall 2 in the horizontal direction, and the water stretched on the paddy field P through the communication pipe 3 is supplied into the test section T. Be drawn into. The communication pipe 3 is made of, for example, vinyl chloride, and has an inner end portion 3A extending into the test section T and an outer end portion 3B extending to the paddy field P.
The depth of water stretched in the test zone T is generally set to 2 cm to 10 cm, preferably 4 cm to 5 cm. In order to obtain such a desired water depth, the communication pipe 3 is connected to the ground G. Provided at a desired height. On the other hand, even when the water depth of the paddy field P is reduced for some reason, the communication pipe 3 is provided with the backflow prevention means 4 for preventing the desired water depth in the test section T once obtained from being reduced.

The backflow prevention means 4 is made of a flexible vinyl tube, and the outer opening end portion 4A of the vinyl tube is attached so as to cover the outer peripheral wall surface of the inner end portion 3A of the communication pipe 3. The inner opening end 4B of the flexible tube is provided with a pair of opposed folds positioned in the horizontal direction, and these folds cause the inner opening end 4B to be weak when no external force is applied. It is configured to be closed by force. The inner opening end 4B is provided with a buoyancy providing element 5 that gives buoyancy thereto. The buoyancy providing element 5 is constituted by, for example, a so-called air cushion used when conveying a cracked object.
When the inflow of water from the paddy field P to the test section T stops, the buoyancy providing element 5 floats on the water surface of the water stored in the test section T, and the inner opening end 4B is closed. Then, as shown in FIG. 2, even when the water level of the paddy field P falls below the communication pipe 3, the water in the test area T does not flow out to the paddy field P.

  By the way, in order to obtain accurate drug data from the above-described test, the test section T must be formed in the paddy field P so as to have an accurate predetermined area. In order to form the section T, first, a strict survey is performed in the paddy field P, and based on this, for example, piles that serve as position indicators are struck, yarns are stretched on these piles, and isolation is performed along the piles. The wall 2, i.e. the corrugated sheet, must be positioned. However, such work is very troublesome.

  Further, even when the test section T is formed using a single corrugated sheet, since one end part and the other end part of the corrugated sheet form one joint, such a part is required. The inflow and outflow of water from the gap between the ends at the joint must be prevented. However, conventionally, there is a case where the corrugated sheet is simply inserted into the ground G of the paddy field P with the corrugations at the ends of the corrugated sheet being overlapped. It was insufficient. On the other hand, it is possible to improve the adhesion between the ends of the corrugated sheet by reinforcing the corrugated sheet such as a pile stand or a pile, but in this case, the test section T is formed. The work process for doing this will be further added, and considerable skill is required to perform such work appropriately.

Furthermore, in order to reduce the trouble of forming a rectangular test section T by sequentially bending four corrugated sheets at four locations, two or more corrugated sheets may be used. This increases the joint between the ends of the corrugated sheet having the disadvantages described.
Furthermore, in order to attach the communication pipe 3 to the isolation wall 2, it is necessary to make a mounting hole in the separating wall 2. However, if this mounting hole is previously opened at an appropriate position, it has a predetermined area. When the rectangular separating wall 2 is formed, the mounting holes may be arranged at the corners of the rectangular separating wall 2, and this makes it impossible to attach the communication pipe 3. It was necessary to open the isolation wall 2 in the paddy field, which is the site where the section T is actually formed.

  The present invention has been invented to solve the above-described problems, and can form a test area having a predetermined area without a surveying work and improve the adhesion of a joint without a reinforcing work. An object of the present invention is to provide a test area forming apparatus and method capable of performing the above.

  In order to achieve the above object, an evaluation test zone forming device for forming an evaluation test zone having a predetermined area in a field according to the first invention of the present application is a flexible isolation in which joint communication holes are formed at each end. Having a plate, and the separator plate can be curved to form an annular circular shape with the joint communication holes aligned with each other, and passes through the aligned joint communication holes, It is characterized by having a communication fastening means for communicating the inside and the outside of an annular circle and bringing the ends of the isolation plate into close contact with each other.

  In order to achieve the above object, an evaluation test section forming device for forming an evaluation test section having a predetermined area in a field according to the second invention of the present application is a flexible isolation in which a joining communication hole is formed at each end. Having at least two plates, and these separator plates can be curved so as to form one annular circle as a whole, with the joint communication holes of adjacent separator plates aligned with each other; It has a communication fastening means for passing through the aligned joint communication hole to communicate the inside and the outside of the annular circle of the isolation plate, and for bringing the end portions of the isolation plate into close contact with each other.

In the first and second inventions described above, it is preferable to have a backflow prevention means for preventing the flow of liquid from the inside to the outside of the annular circle of the isolation plate provided in the communication fastening means.
In the first and second inventions described above, the flow of liquid from the outside to the inside of the annular circle of the isolation plate and from the inside to the outside of the annular circle provided in the communication fastening means is selectively blocked. It is preferable to have a backflow prevention means.
Further, in the first and second inventions, the communication fastening means has a pair of pipes that can be engaged with each other, and one of these pipes has a male thread part and a flange part, It is preferable that the other pipe has a female screw part that is screwed with the male screw part of the one pipe and a flange part.
Furthermore, in the first and second inventions, the backflow prevention means for selectively blocking the flow of liquid from outside to inside of the annular circle of the isolation plate and from inside to outside of the annular circle. Is preferably constructed by bending at least one of the pipes.

  In order to achieve the above object, an evaluation test zone forming device for forming two evaluation test zones each having a predetermined area, communicated with each other, and coupled to each other according to the third invention of the present application. , Having two flexible isolation plates each having a joint communication hole formed at each end, each of the isolation plates being curved to form an annular circular shape with the joint communication holes aligned with each other And passing through the aligned joint communication holes of one of the isolation plates and the aligned joint communication holes of the other isolation plate to communicate the annular circles of these isolation plates In addition, it is characterized by having a communication fastening means for bringing the end portions of these isolation plates into close contact with each other.

  In order to achieve the above object, an evaluation test section forming method for forming an evaluation test section having a predetermined area in a field according to the fourth invention of the present application is a flexible isolation in which joint communication holes are formed at each end. The plate is curved in an annular circle shape, the joint communication holes are aligned with each other, the inside and outside of the annular circle of the isolation plate are communicated with each other through the aligned connection communication hole, and the end of the isolation plate The parts are brought into close contact with each other, and the annular circular isolation plate thus obtained is installed in the field.

  In order to achieve the above object, an evaluation test section forming method for forming an evaluation test section having a predetermined area in a field according to the fifth invention of the present application is a flexible isolation in which joint communication holes are formed at each end. Using at least two plates to bend into an annular circular shape as a whole, aligning the joint communication holes between the ends of the adjacent isolation plates, and penetrating the aligned joint communication holes; The inside and outside of an annular circle of the isolation plate are communicated with each other, the ends of the isolation plate are brought into close contact with each other, and the thus obtained annular circle isolation plate is installed in the field.

  In order to achieve the above object, an evaluation test zone forming method for forming two evaluation test zones each having a predetermined area, communicating with each other and coupled to the field according to the sixth invention of the present application is provided at each end. A flexible first isolation plate having a joint communication hole formed in the portion is curved into an annular circular shape so that the joint communication holes are aligned with each other, and a flexible communication having a joint communication hole formed at each end. The second isolation plate is curved in an annular shape, the joint communication holes are aligned with each other, the aligned connection communication holes of the first isolation plate, and the aligned connection communication holes of the second isolation plate The annular circles of the first and second isolation plates are communicated with each other, and the ends of these isolation plates are brought into close contact with each other. Including installing And butterflies.

  In order to achieve the above object, an evaluation test zone forming device for forming an evaluation test zone having a predetermined area in a field according to the seventh invention of the present application is a flexible isolation plate having a joint hole formed at each end. The isolation plate can be curved to form an annular circular shape with the joining holes aligned with each other, and through the aligned joining holes, the end of the isolation plate It has a tightening means for bringing them into close contact with each other.

  In order to achieve the above object, an evaluation test section forming method for forming an evaluation test section having a predetermined area in a field according to the eighth invention of the present application is a flexible isolation plate in which a joint hole is formed at each end. Are bent into an annular circle shape, the joining holes are aligned with each other, and tightening means is passed through the aligned joining holes to bring the end portions of the isolation plate into close contact with each other. Including placing a plate in the field.

  In the first invention of the present application, since the separation plate can be curved so that the joining communication holes formed at the respective end portions are aligned with each other, an annular circle separation plate can be easily formed. In addition, the annular circle of the separating plate having a desired area can be easily formed by determining the distance between the joining communication holes at a predetermined distance. In addition, the communication fastening means allows the inside and outside of the annular circle of the isolation plate to communicate with each other and the end portions of the isolation plate can be brought into close contact with each other. It can be unnecessary.

  In the second invention of the present application, at least two isolation plates are curved so as to form one annular circle as a whole so that the joining communication holes formed at the ends of the adjacent isolation plates are aligned. Therefore, it is possible to easily form an annular circular isolation plate, and the isolation plate having a desired area can be formed by dimensioning a predetermined distance between the joint communication holes of each isolation plate. The annular circle can be easily formed. In addition, the communication fastening means allows the inside and outside of the annular circle of the isolation plate to communicate with each other and the end portions of the isolation plate can be brought into close contact with each other. It can be unnecessary.

  In the third invention of the present application, each of the two isolation plates is configured such that the isolation plate can be curved so that the joining communication holes formed at the respective end portions are aligned with each other. The isolation plate can be easily formed, and two annular circles of the isolation plate having a desired area can be easily formed by dimensioning a predetermined distance between the joint communication holes of each isolation plate. be able to. Moreover, since the annular circles of the two isolation plates can be communicated with each other by the communication tightening means, the ends of the two isolation plates can be brought into close contact with each other, so that the adhesion can be improved.

  In the fourth invention of the present application, an annular circle is formed by curving the isolation plate. Therefore, the annular circle of the isolation plate having a desired area can be easily formed by determining a predetermined distance between the joint communication holes. can do. Further, since the inner and outer sides of the annular circle of the isolation plate are communicated with each other and the end portions of the isolation plate are brought into close contact with each other, it is possible to eliminate the reinforcement work as in the prior art.

  In the fifth invention of the present application, since at least two isolation plates are configured to be curved so as to constitute one annular circle as a whole, a desired area can be obtained by sizing a predetermined distance between the joining communication holes. An annular circle of the separating plate can be easily formed. Further, since the inner and outer sides of the annular circle of the isolation plate are communicated with each other and the end portions of the isolation plate are brought into close contact with each other, it is possible to eliminate the reinforcement work as in the prior art.

  In the sixth invention of the present application, each of the two isolation plates is curved to form two annular circles. Therefore, by sizing the junction communication holes between the isolation plates to a predetermined distance, An annular circle of the separator plate having a desired area can be easily formed. Further, since the annular circles of the two isolation plates are communicated with each other and the end portions of the two isolation plates are in close contact with each other, the reinforcement work as in the prior art can be eliminated.

  In the seventh invention of the present application, since the separation plate can be curved so as to align the joining holes formed at each end, an annular circle separation plate can be easily formed, In addition, by determining the distance between the joining holes to a predetermined distance, it is possible to easily form an annular circle of the separating plate having a desired area. Further, the end portions of the isolation plate can be brought into close contact with each other by the fastening means. In the present invention, it is not necessary to communicate the inside and outside of the annular circular separation plate. The clamping means comprises a pair of male and female members that can be engaged with each other, and one of these members passes through the aligned joint hole and is engaged with the other member, whereby the end of the isolation plate It is good that each other is tightened. These male and female members are preferably solid.

  In the eighth invention of the present application, an annular circle is formed by curving the isolation plate. Therefore, the annular circle of the isolation plate having a desired area can be easily formed by determining the distance between the joining holes to a predetermined distance. be able to. In addition, since the end portions of the isolation plates are brought into close contact with each other by passing the tightening means through the aligned joint holes, an operation for improving the close contact between the end portions of the isolation plates is unnecessary. In the present invention, it is not necessary to communicate the inside and outside of the annular circular separation plate. The clamping means comprises a pair of male and female members that can be engaged with each other, and one of these members passes through the aligned joint hole and is engaged with the other member, whereby the end of the isolation plate It is good that each other is tightened. These male and female members are preferably solid.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In this embodiment, the present invention is applied to an evaluation test zone forming apparatus for agricultural chemicals in a paddy field.

Referring to FIG. 3, an evaluation test area forming apparatus according to the first embodiment of the present invention is indicated by reference numeral 11. This evaluation test section forming device 11 is installed in the paddy field P (the ground G) and used to form the test section T, as in the prior art described in the background section.
The evaluation test zone forming apparatus 11 has one isolation plate 12 shown in FIG. As can be clearly understood from FIG. 4, the isolation plate 12 is made of a single flexible sheet and can be made of, for example, vinyl chloride. The isolation plate 12 has two end portions 12A and 12B, and joint communication holes 13A and 13B are formed in these end portions, respectively.

  The evaluation test section forming apparatus 11 also has a shape in which the isolation plate 12 shown in FIG. 4 is curved into an annular circular shape as shown in FIG. 3, and the joint communication holes 13A and 13B are aligned with each other. The hole 13A, 13B is penetrated and the inside and outside of the circular circular isolation plate 12 are communicated with each other, and the communication tightening means 14 for bringing the end portions 12A, 12B into close contact with each other is provided.

  As can be clearly seen in FIG. 5, the communication fastening means 14 has a pair of an outer female pipe 15 and an inner male pipe 16 that can be engaged with each other. The outer female pipe 15 has a cylindrical body 15A that is generally cylindrical, and a tightening portion that is formed at a joining side end of the cylindrical body 15A, that is, a flange portion 15B. A female screw 15C is provided at the joining side end. It is cut. The inner male pipe 16 has a cylindrical body 16A that is generally cylindrical, a fastening portion formed on the cylindrical body 16A, that is, a flange portion 16B, and a cylindrical extension portion that extends from the flange portion 16B. Has a male thread 16C. The back flow prevention means 4 described in the conventional test section forming apparatus 1 is attached to the inner male pipe 16. More specifically, the outer opening end 4A of the backflow prevention means 4 is attached so as to cover the outer surface of the cylindrical main body 16A of the inner male pipe 16. Since the other structures and functions of the backflow prevention means 4 have already been described, they will not be described repeatedly here.

  When the communication fastening means 14 is attached to the aligned joint communication holes 13A and 13B of the isolation plate 12, for example, a cylinder in which the male screw 16C of the inner male pipe 16 is formed from the inside of the isolation plate 12 formed in an annular circular shape. The extension portion is passed through the joint communication holes 13A and 13B of the isolation plate 12, and the flange portion 16B is brought into contact with the isolation plate 12. The joint communication holes 13A and 13B are dimensioned and slightly larger than the diameter of the male screw 16C of the inner male pipe 16 so that the inner male pipe 16 does not easily fall off the isolation plate 12 even when the inner male pipe 16 is released. Good to do.

  Next, the female screw 15C of the outer female pipe 15 is screwed into the male screw 16C of the inner male pipe 16 projecting outward from the isolation plate 12 (to the paddy field P), and the flange portion 15B of the outer female pipe 15 is connected to the isolation plate 12. The end portions 12A and 12B of the isolation plate 12 are tightened by the flange portion 16B of the inner male pipe 16 and the flange portion 15B of the outer female pipe 15.

By attaching the communication tightening means 14 to the annular circular isolation plate 12, the ends 12A and 12B can be brought into close contact with each other while communicating the inside and outside of the annular circular isolation plate 12.
By inserting the evaluation test zone forming device 11 thus formed into the ground G of the paddy field P, the test zone T can be easily formed.

By the way, the various dimensions of the isolation plate 12 are determined in accordance with the area of the test section T to be formed and the water level to be supplied to the test section T.
For example, when it is required to form a test area T of 1 m ² , the distance between the joining communication holes 13A and 13B of the isolation plate 12 in the state shown in FIG. 4 is 354 cm. Since the circumference of the circular circular isolation plate 12 (FIG. 3) formed by the isolation plate 12 is 354 cm, when the circumferential ratio is 3.14, the diameter and radius of the circular circular isolation plate 12 are respectively 112.73885 cm and 56.369426 cm. Therefore, the area in the annular circular isolation plate 12, that is, the area of the test section T is 9977.3883 cm ² , which is substantially equal to 1 m ² . When a more strict area of the test section T and 1 m ² are desired, the distance between the joining communication holes 13A and 13B of the isolation plate 12 may be set to a more strictly calculated numerical value.

According to the evaluation test zone forming apparatus 11 of the present invention, the distance between the joining communication holes 13A and 13B of the isolation plate 12 can be formed based on numerical values obtained by calculation in advance as described above. The test area T can be easily formed, and the surveying work in the paddy field P as in the conventional test area forming apparatus 1 is unnecessary.
Further, in the evaluation test zone forming apparatus 11 of the present invention, the joint communication holes 13A and 13B for attaching the communication pipes 15 and 16 can be formed in the isolation plate 12 in advance. Since there is no disadvantage caused by previously forming such joining communication holes 13A and 13B, the drilling operation in the paddy field P as in the conventional test zone forming apparatus 1 can be eliminated.

  Furthermore, in the evaluation test zone forming apparatus 11 of the present invention, the joining communication holes 13A, 13B are provided at the end portions 12A, 12B to which the annular circular isolation plate 12 is joined, and the pipes 15, 16 are connected to the joining communication holes 13A, At the same time that the end portions 12A and 12B of the isolation plate 12 are fastened and brought into close contact with each other, the gap between the end portions 12A and 12B to which the isolation plate 12 is joined is removed by the conventional test section forming apparatus 1. Thus, the evaluation test section forming apparatus 11 according to the present invention does not require the reinforcement work that has been performed in the conventional test section forming apparatus 1.

FIG. 6 shows an evaluation test area forming apparatus 21 according to the second embodiment of the present invention.
The evaluation test zone forming device 21 includes two isolation plates 22A and 22B having the same configuration as the isolation plate 12 of the evaluation test zone forming device 11 of the first embodiment, and the evaluation test zone forming device 11 of the first embodiment. The communication fastening means 14 is the same as the communication fastening means 14.
When assembling the evaluation test section forming device 21 as shown in FIG. 6, as in the isolation plate 12 of the evaluation test section forming apparatus 11, each of the isolation plates 22A and 22B is formed into a circular circle and is formed at both ends thereof. The formed joint communication holes are aligned. Next, the aligned joining communication holes of the isolation plate 22A and the aligned bonding communication holes of the isolation plate 22B are aligned so that the outer surfaces of the isolation plates 22A and 22B are in contact with each other. Then, for example, from the inside of the annular circularly shaped isolation plate 22A, the cylindrical extension portion in which the male screw 16C of the inner male pipe 16 of the communication fastening means 14 is formed is connected to the four joint communication holes of the isolation plates 22A and 22B. Then, the flange portion 16B is brought into contact with the isolation plate 12, and the cylindrical extension portion in which the male screw 16C of the inner male pipe 16 is formed is protruded into the isolation plate 22B formed in an annular circle shape.

Next, the female screw 15C of the outer female pipe 15 is screwed into the male screw 16C of the inner male pipe 16 projecting into the isolation plate 22B, and the flange portion 15B of the outer female pipe 15 is brought into contact with the isolation plate 22B, so that the inner male pipe is brought into contact. Four end portions of the isolation plates 22A and 22B are fastened by the 16 flange portions 16B and the flange portion 15B of the outer female pipe 15.
By inserting the evaluation test zone forming device 21 thus formed into the ground G of the paddy field P, two test zones T1 and T2 are formed which are connected to each other by the communication tightening means 14 and combined.
This evaluation test zone forming device 21 is suitable for conducting a phytotoxicity test by the outflow of paddy water. More specifically, for example, by observing changes in the test section T1 and the test section T2 when a new drug is administered to the test section T1 and no new drug is administered to the test section T2, the adjacent paddy fields communicated with each other are monitored. When a drug is administered to only one side, the effect of this drug on the other paddy field can be simulated.

FIG. 7 shows a communication fastening means 30 which is a modified embodiment of the communication fastening means 14 used in the evaluation test zone forming apparatus 11 described above.
This communication fastening means 30 has substantially the same structure as the communication fastening means 14, whereas the cylindrical body 15 A of the outer female pipe 15 of the communication fastening means 14 extends substantially horizontally and straight, whereas the communication fastening means 30. The cylindrical body 30A of the outer female pipe 30 is only different from the communication fastening means 14 in that it is bent.
By inclining the cylindrical body 30A in this way, that is, by configuring the pipe 15 with a so-called elbow (joint), the inflow of water from the surrounding paddy field P to the test section T and / or the test section T Water flow to the surrounding paddy field P can be stopped arbitrarily or selectively. That is, the angled cylindrical body 30A constitutes a selective backflow preventing means.

  For example, as shown in FIG. 7, when the test section T already has a desired water depth, and the water depth of the surrounding paddy field P exceeds the desired water depth of the test section T, the opening 30a of the cylindrical body 30A Only by rotating the outer female pipe 30 with respect to the isolation plate 12 so as to face upward, undesirable inflow of water from the paddy field P to the test section T can be prevented. Further, when the test section T has a desired water depth, the communication tightening means 30 causes water to flow from the test section T to the paddy field P when the water depth of the surrounding paddy field P is lower than the desired water depth of the test section T. Can be prevented.

The present invention is not limited to the above-described embodiments, and various modifications as described below are possible.
For example, in the evaluation test section forming apparatus 21, the backflow preventing means 4 is not used, but the backflow preventing means 4 may be provided in the test sections T1 and T2 according to the test contents. Therefore, also in the evaluation test section forming apparatus 21, the communication tightening means 30 is used in place of the communication tightening means 14 for the purpose of arbitrarily or selectively stopping the inflow of water between the test section T1 and the test section T2. May be.
Further, in the communication tightening means 14 and 30, the outer pipe is male and the inner pipe is male, but the outer pipe may be male and the inner pipe may be female. In the communication fastening means 30, the inner pipe may be an elbow (joint).

Furthermore, in the evaluation test section forming apparatus 11, the test section T of 1 m ² is formed using one isolation plate 12, but the test section T of 4 m ² is easily formed by using two isolation plates 12. can do. That is, the joint communication hole 13A of one isolation plate 12 and the joint communication hole 13B of the other isolation plate 12 are aligned, and the end portions where these holes are formed are tightened and engaged by the communication tightening means 14 and 21. Similarly, the joining communication hole 13B of one isolation plate 12 and the joining communication hole 13A of the other isolation plate 12 are aligned, and the end portions where these holes are formed are tightened by the communication tightening means 14 and 30. Combine. As a result, a test area T of 4 m ² is formed. It is preferable to provide the backflow prevention means 4 in the (each) communication tightening means 14 to be used.

  As described above, the backflow preventing means 4 and the communication tightening means 30 are used as means for preventing undesirable inflow of water from the paddy field to the test area, and the communication tightening means 30 is also not preferable from the test area to the paddy field P. Although it functions as a means for preventing the outflow of water, an existing one-way valve structure may be employed instead of these means.

  The test area forming apparatus and method of the present invention can be widely used for various tests such as cultivation tests and fertilizer tests in addition to agricultural chemical tests.

It is the schematic which shows the conventional test area formation apparatus. It is the elements on larger scale of the test area formation apparatus shown in FIG. It is the schematic which shows the test plot formation apparatus by 1st Embodiment of this invention. It is a front view of the isolation plate which comprises the test section formation apparatus shown in FIG. It is the elements on larger scale of the test area formation apparatus shown in FIG. It is the schematic which shows the test plot formation apparatus by 2nd Embodiment of this invention. It is a figure which shows the deformation | transformation embodiment of the communication fastening means of the test zone formation apparatus by 1st Embodiment of this invention.

Explanation of symbols

11, 21 Evaluation test section forming devices 12, 22 Separation plates 12A, 12B End portions 13A, 13B Joint communication holes 14, 30 Communication tightening means

Claims (12)

An evaluation test zone forming device for forming an evaluation test zone having a predetermined area in a field,
Having a flexible isolation plate formed with joint communication holes at each end, the isolation plate can be curved to form an annular circular shape with the joint communication holes aligned with each other;
Penetrating the aligned joint communication holes, communicating the inside and outside of the annular circle of the isolation plate, and having a communication tightening means for closely contacting the ends of the isolation plate;
Evaluation test zone forming device. An evaluation test zone forming device for forming an evaluation test zone having a predetermined area in a field,
At least two flexible separator plates each having a joint communication hole formed at each end thereof, and these separator plates as a whole in a state where the joint communication holes of the adjacent separator plates are aligned with each other. Can be curved to form one annular circle,
Penetrating the aligned joint communication holes, communicating the inside and outside of the annular circle of the isolation plate, and having a communication tightening means for closely contacting the ends of the isolation plate;
Evaluation test zone forming device.   The evaluation test zone forming apparatus according to claim 1 or 2, further comprising a backflow prevention means provided in the communication fastening means for preventing the flow of liquid from the inside to the outside of the annular circle of the isolation plate.   Backflow prevention means for selectively blocking the flow of liquid from the outside to the inside of the annular circle of the isolation plate and from the inside to the outside of the annular circle, provided in the communication tightening means. The evaluation test zone forming device according to claim 1 or 2. The communication fastening means has a pair of pipes that can be engaged with each other,
One of these pipes has a male threaded portion and a flange portion, and the other pipe has a female threaded portion that engages with the male threaded portion of the one pipe, and a flange portion. The evaluation test zone forming device according to any one of claims 1 to 4.   The backflow prevention means for selectively blocking the flow of liquid into and out of the annular circle of the isolation plate comprises at least one of the pipes. The evaluation test zone forming apparatus according to claim 5, wherein the evaluation test zone forming apparatus is configured by bending. An evaluation test area forming device for forming two evaluation test areas each having a predetermined area, communicating with each other and coupled to a field,
Each has two flexible isolation plates each having a joint communication hole formed at each end thereof, and each of the isolation plates forms an annular circular shape with the joint communication holes aligned with each other. Can be curved to
The annular circles of these isolation plates are communicated with each other through the aligned junction communication holes of one of the isolation plates and the aligned connection communication holes of the other isolation plate. Having communication tightening means for bringing the ends of the plates into close contact with each other;
Evaluation test zone forming device. An evaluation test zone forming method for forming an evaluation test zone having a predetermined area in a field,
Curving a flexible isolation plate having joint communication holes formed at each end into an annular circular shape, and aligning the joint communication holes with each other;
Penetrating the aligned joint communication hole, communicating the inside and the outside of the annular circle of the isolation plate, and closely contacting the ends of the isolation plate,
Including the annular circular isolation plate thus obtained in the field,
Evaluation test zone formation method. An evaluation test zone forming method for forming an evaluation test zone having a predetermined area in a field,
By using at least two flexible separator plates each having a joint communication hole formed at each end portion, the joint communication between the end portions of adjacent separator plates is curved as a whole into one annular circular shape. Align the holes,
Penetrating the aligned joint communication hole, communicating the inside and the outside of the annular circle of the isolation plate, and closely contacting the ends of the isolation plate,
Including the annular circular isolation plate thus obtained in the field,
Evaluation test zone formation method. An evaluation test zone forming method for forming two evaluation test zones each having a predetermined area, communicating with each other, and being coupled to a field,
Bending a flexible first isolation plate having a joint communication hole formed at each end into an annular circle, and aligning the joint communication holes with each other;
Bending a flexible second isolation plate having a joint communication hole formed at each end into an annular circle, and aligning the joint communication holes with each other;
The aligned joint communication holes of the first isolation plate and the aligned connection communication holes of the second isolation plate are passed through, and the annular circles of the first and second isolation plates are communicated with each other. Adhering the edges of the plates together,
Including two combined circular circular isolation plates thus obtained in the field,
Evaluation test zone formation method. An evaluation test zone forming device for forming an evaluation test zone having a predetermined area in a field,
Having a flexible separator plate formed with a joint hole at each end, the separator plate can be curved to form an annular circle with the joint holes aligned with each other;
A clamping means for penetrating the aligned joining holes and bringing the ends of the isolation plates into close contact with each other;
Evaluation test zone forming device. An evaluation test zone forming method for forming an evaluation test zone having a predetermined area in a field,
Curving a flexible isolation plate with a joint hole at each end into an annular circle to align the joint holes with each other;
By passing fastening means through the aligned joint holes, the ends of the isolation plates are brought into close contact with each other,
Including the annular circular isolation plate thus obtained in the field,
Evaluation test zone formation method.

Images