JPH0722460B2 - Golf course construction method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a golf course, which is capable of preventing agricultural chemicals from flowing out from the bed soil on which grass is grown and promoting growth of grass.

[0002]

2. Description of the Related Art In conventional golf courses, soil improvement is carried out by using zeolite, perlite, vermiculite or the like in order to improve the growth of turf.

[0003]

However, the conventional soil improving materials such as zeolite do not have the ability to adsorb and retain pesticides such as insecticides, fungicides, and herbicides sprayed to protect the grass, so that the rainfall Therefore, there is a problem in that the pesticide cannot be prevented from flowing out due to such reasons, and the effect of the pesticide cannot be maintained for a long time. Further, this causes a problem that the number of times of spraying the pesticide is increased, resulting in extra cost and labor. In addition, the pesticides that have run out contaminate rivers and the like in the downstream region, which has a problem that the environment is adversely affected.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to apply pesticides such as insecticides, fungicides, and herbicides to the bed soil on which grass is grown. It is to provide a construction method for a golf course which, by holding it for a long period of time, promotes the growth of turf and does not adversely affect the environment, and can save the cost and labor for spraying pesticides. .

[0005]

As a means for solving the above-mentioned problems, in the method for constructing a golf course of the present invention, at least one clay porous particle selected from the group consisting of sepiolite and attapulgite is used for soil improvement. The method used for the soil of the lawn nurturing department was used as a material.

Both sepiolite and attapulgite used as soil improving materials in the present invention are hydrous magnesium silicates and are classified as clay minerals. In general, many clay minerals have a layered structure, whereas the sepiolite and attapulgite have a fibrous structure, and the properties thereof chemically and physically have a soil improving function in the soil of a golf course. That is, the effect is to improve the water retention and water absorption of the soil. In particular, the sepiolite has recently attracted attention as having excellent properties such as large adsorptive ability, catalytic ability, rheological characteristics, and further dry consolidation and sinterability, and its applications include thickeners, deodorants, and water absorbing agents. It is used as an agent and oil absorbent.

At golf courses, insecticides such as diazinon, chlorpyrifos, fenitrothion (MEP),
Fungicides such as oxine copper, captan and iprodione, herbicides such as simazine (CAT), butamiphos and ashram, and plant growth regulators are mainly green as pesticides,
Scattered on fairways.

In the golf course according to the construction method of the present invention, the pesticide sprayed on the turf is dissolved by rain or the like and infiltrates into the bed soil. It absorbs and holds the dissolved rainwater, and prevents the agricultural chemicals from flowing out of the golf course from the drainage system. Moisture adsorbed and held by the clay porous particles is appropriately absorbed by the grass to help replenish the grass. The pesticide adsorbed and held by the clay porous particles will perform insecticidal, sterilizing and weeding actions on grass and soil for a long period of time.

The soil improving material used in the present invention may contain the above-mentioned pesticide in advance. In addition, if necessary, a solid or liquid chemical fertilizer containing plant essential nutrients such as nitrogen, phosphoric acid, potassium, etc., or organic fertilizer such as compost, fertilizer, etc., and a drug for improving soil microorganisms may be added. May be.

In consideration of the amount of pesticides used in golf courses and the like, the soil-improving material composed of the above-mentioned clay porous particles is usually mixed and used in the bed soil in the range of 5 to 20% by weight. Is not limited.

As the bed soil, sand soil such as river sand, mountain sand and sea sand is used.

[0012] The structure of the floor soil of the lawn nursery is arbitrary, and may be used in a place where waterways are easily formed on the ground surface without grass so as to enhance the pesticide collecting effect.

Sepiolite and attapulgite may be used alone or in combination. It is also possible to mix and use with other materials.

[0014]

EXAMPLES Examples of the present invention will be described below. In the following, parts are parts by weight. Example 1 10 parts of sepiolite and 90 parts of sand soil are mixed to obtain 100 parts. This bed soil contains 10% by weight of sepiolite. Example 2 20 parts of sepiolite and 80 parts of sand soil are mixed to obtain 100 parts. This bed soil contains 20% by weight of sepiolite. Example 3 10 parts of attapulgite and 90 parts of sandy soil were mixed to obtain 100
Get a section. This bed soil contains 10% by weight of attapulgite.

Comparative Example 1 10 parts of sand and 90 parts of sand were mixed to obtain 100 parts. This bed soil contains 100% by weight of sand soil. Comparative Example 2 10 parts of zeolite and 90 parts of sandy soil are mixed to obtain 100 parts. This bed soil contains 10% by weight of zeolite. Comparative Example 3 10 parts of pearlite and 90 parts of sand soil are mixed to obtain 100 parts. This bed soil contains 10% by weight of perlite. Comparative Example 4 10 parts of vermiculite and 90 parts of sand soil were mixed to obtain 100
Get a section. This bed soil contains 10% by weight of vermiculite.

Test Example 1 In the bed soil prepared according to Example 1, the fungicide "iprodione" and the herbicide "simazine (CAT)" were used.
In addition, the pesticide outflow test for the fungicide "iprodione" was performed on the bed soils prepared in Example 2 and Comparative Examples 1, 2, 3, and 4, respectively. In the test, as shown in the flow chart of FIG. 1, the bed soil of each of the examples and comparative examples was placed in a chromatographic tube having a capacity of 10 cm in diameter and 40 cm in length, and 500
After filling with g, 500 ml of distilled water was sprinkled from the upper end, and then drained over a day. After that, pesticide (bactericide "iprodione" was diluted 100 times from the top of the chromatographic tube to 3 times
0 ml of the herbicide "Cimazine (CAT)" was diluted 100-fold to 10 ml) and sprayed for 30 minutes, and then 420 ml of distilled water was sprayed over it for 1 hour to allow the pesticide to flow out.

The analysis by the pesticide spill test was carried out in accordance with the pesticide analysis method "Kansui Soil No. 77, provisional instruction guideline concerning prevention of water pollution by pesticides used at golf courses", which was notified by the Environment Agency. The results of analyzing the leachate collected according to this order are shown in Table 1.

[Table 1]

Using the examples and comparative examples, as shown in FIG. 2, an actual green soil A having a diameter of 5 m was created, and the pesticide "iprodione" was sprayed on the soil A and drained. The analysis of the waste water coming out of the pipe D was also carried out in the same manner, and the results according to the above Table 1 were obtained. From these two test results, it was found that the golf course construction method of the present invention has a high pesticide retention effect.

Test Example 2 Bentgrass, which is a kind of Western grass that is often cultivated at golf courses, was applied to each of the soils prepared in Examples 1 and 2 and Comparative Examples 1 and 2 in a 1/5000 Wagner pot. After cultivation, 123 days later, above-ground parts (leaves, stems, etc.) were harvested, and the dried yield was obtained. The results are shown in Table 2.

[Table 2] From these results, it was found that the golf course construction method of the present invention has a favorable effect on soil improvement of the soil and promotes the growth of turf.

[0020]

As described above, in the construction method of the golf course of the present invention, since the above method is adopted,
The soil of the lawn nursery has a high retention effect of pesticides and can prevent environmental pollution due to pesticides. Since the pesticide and water are retained in the soil, it has a positive effect on soil improvement of the soil and promotes the growth of turf. It is possible to obtain effects such as the cost and labor for spraying pesticides.

[Brief description of drawings]

FIG. 1 is a flowchart showing a method of pesticide outflow test according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a method for constructing the above-mentioned green floor soil.

[Explanation of symbols]

 A floor soil

Claims (1)

[Claims] 1. A method for constructing a golf course, wherein at least one kind of clay porous particles selected from the group consisting of sepiolite and attapulgite is used as a soil improving material for the soil of a lawn growing club.