JP2006096787A - Multifunctional sand and method for using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multifunctional sand which provides many merits for maintaining plant, especially turf such as conditioning soil, preventing plant damage, saving a fertilizer, reducing agricultural chemicals, and simplifying maintenance; and a method for using the same. <P>SOLUTION: The multifunctional sand comprises the surface of a base material particle 2 having a diameter of 0.5-5 mm being coated with the IOUSEKI (orthorhombic pyroxene-amphibole andesite) powder 4 through a binder. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multifunctional sand and a construction method thereof, and more particularly to a multifunctional sand having effects such as soil improvement, disease prevention, and grass quality improvement in turf growth at a golf course and the like and a construction method thereof.

In turf growth management at golf courses and the like, porous natural mineral powders such as zeolite have been used more than ever for the purpose of improving root rot and soil quality.
In addition, a proposal of a plant growing material obtained by negatively ionizing rice husk charcoal and mixing lime nitrogen is also known (Patent Document 1).
Furthermore, the cultivation method which processes water with the photocatalyst functional body which consists of optical semiconductor powder, and gives this treated water to a plant is also made | formed (patent document 2).
Thus, conventionally, many functional materials and cultivation methods have been proposed and employed in practice for the purpose of promoting plant growth and preventing diseases.

JP-A-9-165284 JP 2001-197831 A

  By the way, although the above-mentioned soil-improvement materials such as zeolite powder have the effect of adsorbing and catching ammonia, various elements necessary for the growth of high-quality plants such as the supply of minerals, the bactericidal action of harmful bacteria, and the ph adjustment action. However, since these materials are porous (lightweight), they are scattered by wind or penetrated into the soil by rain, and long-lasting effects cannot be expected.

  The present invention provides a multifunctional sand that can provide many merits in managing plants, especially turf, such as soil improvement, disease prevention, fertilizer saving, pesticide weight reduction, maintenance simplification, etc., and its construction method It was made for the purpose of doing.

  The present invention of claim 1 is a multifunctional sand characterized in that the surface of base particles having a diameter of 0.5 to 5 mm is coated with Ioishi powder.

  The present invention of claim 2 is a multifunctional sand characterized in that the base particles in claim 1 are inorganic particles mainly composed of at least one of a natural mineral, SiO2, and Ca.

  The present invention of claim 3 is a multifunctional sand characterized in that the coating according to claim 1 or 2 is made with a colloidal silica resin as a binder.

  And this invention of Claim 4 is the construction method of a multifunctional sand characterized by spraying the multifunctional sand of any one of Claims 1-3 on planting soil.

That is, the multifunctional sand of the present invention is a powder of Ioishi stone using a colloidal silica-based binder on the surface of a base particle having a diameter of 0.5 to 5 mm mainly composed of at least one of natural minerals, SiO2, and Ca. It is characterized by coating.
The Io stone used in the present invention is an ore collected in the Tomuro district of Ishikawa Prefecture, and is also called Tomuro stone. The scientific name is quartz diorite. Its structure is a monocrystalline mottled structure, rock-forming minerals are plagioclase, fused quartz, and are composed of amphibole, clinopyroxene, chlorite, phosphorus lime, and clinopite. The results of quantitative analysis of several samples are shown in Table 1. In terms of morphology, it is a characteristic mineral that is rich in porosity, contains a wide variety of high-quality elements in a well-balanced manner, and contains high activity.

  When this Ioishi powder is sprayed onto grass, for example, it adsorbs and sterilizes harmful substances such as ammonia and residual agricultural chemicals. Recent studies have shown that this is an ore that creates an optimal soil environment for activity. However, since Ioishi is a rare mineral, it is expensive, and even if it is sprayed on the turf, it is lost due to wind and rain like the above-mentioned zeolite, so it is not practical to spray Ioishi on the turf as it is. In view of this, the present invention coats Ioishi powder on the surface of an inorganic base material mainly composed of an inexpensive and heavy mineral (for example, silica sand), SiO2 (for example, waste glass particles), or Ca (for example, coral or shell particles). It was decided to. As a result, it is possible to provide a low-cost multifunctional sand without losing the wind and rain while maintaining the functions of Ioishi.

  The multifunctional sand according to the present invention can be coated on the surface of inorganic particles adjusted to a particle size that is not lost by wind and rain so that the Ionoishi powder particles cue through a binder having excellent adhesion and durability. It is possible to provide a multifunctional sand that exhibits the effect of the above and that is not lost due to wind and rain and that is low in cost. Moreover, since the multifunctional sand sprayed on the soil transfer stays on the surface without penetrating during the soil transfer, it is possible to maintain a suitable growth environment for plants, particularly turf, for a long time. For this reason, disease can be prevented and fertilizer and pesticides can be reduced.

  FIG. 1 is a diagram showing the configuration of the multifunctional sand 1 of the present invention. The multifunctional sand 1 of the present invention carries inorganic particles having a diameter of 0.5 to 5 mm as base particles 2 and colloidal silica resin as a binder 3 and carries Io-Oishi powder 4 on the surface of the base particles 2. I am letting.

  In order to prevent scattering, the base particle 2 is preferably an inorganic mineral having a specific gravity of 2 or more. Considering durability and cost, silica sand, waste glass particles, coral particles, shell particles, and the like are preferable. The particle size is preferably 0.5 to 5 mm, more preferably 1 to 3 mm. If it is 0.5 mm or less, it is not preferable because it easily penetrates into the soil due to rain and is easily scattered by the wind, making it difficult to stay on the soil surface for a long time. On the other hand, if the particle size exceeds 5 mm, it is difficult to enter between the turf and it is difficult to stay on the soil surface.

  The Iooh stone powder 4 preferably has a particle size of 0.5 to 100 μm, more preferably 1 to 50 μm. When the particle diameter is 0.5 μm or less, it is not preferable because the possibility of losing the function of the phytolith is increased when the phytolith powder 4 is buried in the binder 3 when the base particle 2 is coated. Further, if it is 100 μm or more, it is difficult to uniformly coat the surface of the substrate particles 2, which is also not preferable.

  The resin used as the binder 3 is preferably the same silica-based resin as the main component of the base particle 2 and the Io-Oishi powder 4 in order to enhance the adhesion, and the colloidal silica-based resin is particularly preferably the inorganic-base material particle 2, 4 can be suitably used because of excellent adhesion. If the binder 3 is too high in viscosity, the coating operation becomes difficult, and it is not preferable because the Ioishi stone powder 4 is easily embedded in the resin. If the viscosity is too low, it is difficult to coat evenly because the adhesive strength is weakened. Therefore, the viscosity of about 5 to 30 cps is suitable for the Ioishi powder 4 particles to be found without being embedded in the binder 3 and for uniform coating.

The composition for producing the multifunctional sand 1 using the raw materials described above is as follows.
Compound weight parts silica sand 100
Binder 20
Io stone powder 50
When these blends are put into a mixer in the order of silica sand, binder, and Ioishi stone powder and mixed for 10 minutes per liter and then dried for 24 hours, the above-mentioned multifunctional sand 1 is obtained.

  Next, the results when the multifunctional sand 1 according to the present invention is used will be described. The multifunctional sand 1 according to the present invention has a high specific gravity and is an average particle of 1 to 3 mm or less, so that it has good sprayability. It can be sprayed continuously using the air pressure of the air compressor. The dispersed multifunctional sand 1 quickly enters the turf, stays on the soil transfer surface without being scattered by the wind, and not permeated by rain.

  FIG. 2 shows a case where the multi-functional sand 1 of the present invention is not used for tall fescue, Kentucky bluegrass, and perennial ryegrass, which are cold region type turfgrass, when (a) not sprayed, (b) half the amount of (c) below When functional sand 1 is sprayed, (c) It is the result of having measured the leaf length about the case where multifunctional sand 1 is sprayed. The measurement was performed 2 weeks after seeding (20-25 ° C.).

For tall fescue, the thickness was 32.3 mm for (a), 40.3 mm for (b), and 50.1 mm for (c).
In the case of Kentucky Bluegrass, it was 14.4 mm in the case of (a), 16.0 mm in the case of (b), and 24.9 mm in the case of (c).
In perennial ryegrass, it was 30.2 mm in the case of (a), 29.8 mm in the case of (b), and 42.4 mm in the case of (c).
For any turfgrass, growth could be promoted by the multifunctional sand 1 of the present invention.

It is an expanded sectional view of multifunctional sand of an embodiment of the present invention. It is a graph which shows the result of having measured the leaf height of turfgrass similarly at the time of spraying multifunctional sand.

Explanation of symbols

1 Multifunctional sand 2 Base particles 3 Binder 4 Ioishi powder

Claims (4)

A multifunctional sand characterized in that Ioishi powder is coated on the surface of substrate particles having a diameter of 0.5 to 5 mm. The multifunctional sand according to claim 1, wherein the base particles are inorganic particles mainly composed of at least one of natural mineral, SiO2, and Ca. The multifunctional sand according to claim 1 or 2, wherein the coating is made of a colloidal silica resin as a binder. The construction method of multifunctional sand characterized by spraying multifunctional sand given in any 1 paragraph of Claims 1-3 on planting soil.

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