JPH01235520A - Sheet for holding plant nutrient component - Google Patents

Abstract

PURPOSE:To obtain a sheet capable of simplifying a growth system of a plant and reducing growth cost, by integrally bonding and linking a specific ion exchange resin or fiber to the fiber surface of a porous fiber sheet. CONSTITUTION:A sheet obtained by integrally bonding and linking a powdery or granular ion exchange resin or fiber having organic or inorganic chemical components, required for propagation of plant cells and growth of plant bodies and bonded thereto onto the fiber surface of a porous fiber sheet made of a natural or chemical fiber with a thermoplastic or thermosetting resin. In use, the above-mentioned sheet holding the plant nutrient components is inserted into a container and a plant or plant cells are transplanted thereto. Water is then injected to soak the sheet and keep the water in a testing or circulating state. Thereby, only water may be fed to the plant bodies, since the substrate fiber sheet is capable of binding and holding the nutriments for the plant bodies, which directly contact and absorb the nutriments bonded to the ion exchange resin which is the substrate from the roots thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to the structure of a plant nutrient retaining sheet necessary for propagating and growing plants used in the fields of agriculture, horticulture, or biochemistry.

[Conventional technology]

Conventionally, in the propagation and cultivation of plants that do not use ±1, such as in hydroponic cultivation, seedlings are transplanted onto various substrates and then floated in a container where liquid fertilizer is circulated. supplies nutrients to the roots.

As the base material, wafer, fural, sand, foamed resin, and various twisted fiber sheets are used.

[Problem to be solved by the invention]

In the above-mentioned method of fixing plants on a substrate and supplying liquid fertilizer as nutrients, it is necessary to change and adjust the ingredients of the liquid fertilizer for different types of plants. There are problems that require management of pH, concentration, etc.

In addition, since liquid fertilizer is used repeatedly, it has the disadvantage that circulation facilities and equipment are required, which increases the operating cost.

[Means to solve problems]

In order to solve the problem of spinning, the present invention chemically binds a component necessary for plants to an ion exchange resin or ion exchange fiber in advance to a fiber sheet as a base material, and then glues the powder. This is an attempt to solve the problem by uniformly bonding and holding the base fiber sheet with the agent.

[For production]

When the plant nutrient retaining sheet of the present invention is used, it is inserted into a container, and after transplanting plants or plant cells to the sheet,
By injecting water and immersing the sheet, and keeping the water stationary or circulating, the base fiber sheet binds and retains the nutrients of the plant, so only water needs to be supplied to the plant. grows by directly contacting and absorbing nutrients bound to the ion exchange resin base material through its roots.

A detailed explanation will be given below based on examples.

〔Example〕

Made of polyester fiber 6 denier xstmso% and nylon fiber lO denier x51M50%, cotton weight 210 fl.
A random web of /♂ is formed, and this is dipped in 8BR adhesive and dried to bond the fibers, and the basis weight g 60 < 7
/♂, a nonwoven fabric with a thickness of 10 mm was made. On the other hand, nitrate ion/, phosphate ion, sulfate ion,
Ammonium ions were bound to an anion exchange resin, and potassium ions, boron, calcium, copper, iron, magnesium, manganese, and molybdenum were bound to a cation exchange resin.

Appropriate amounts of this anion exchange resin and cation exchange resin were blended and ground to an average particle size of, for example, 100 mesh. Next, polyvinyl alcohol (σF170G) &5% aqueous solution 1
00 parts, 7.8 parts of epoxy (Unicaresin 870F),
6 parts of catalyst (Milpen Fixer LO-10) α and 18 parts of the above-mentioned pulverized ion exchange resin powder (100 mesh) were mixed.

The nonwoven fabric was immersed in this solution, and then heated to 100°C for 3
After drying with hot air for 1 minute and baking at 140°C for 8 minutes, the powder of ion exchange resin containing plant nutritional components is 80%
q/d is uniformly combined, the basis weight is 34 oy, and the thickness is 10
A sheet for retaining plant nutritional components was obtained. As shown in the drawings, the plant nutritional component retaining sheet of the present invention obtained in the above-mentioned example has an ion exchange resin powder (!) retaining plant nutritional components on the surface of the nonwoven fabric constituent fibers (1) made of thermoplastic or thermoplastic resin. It has a structure in which it is integrally bonded by a curable resin binder (3).

In the above example, polyvinyl alcohol was used as the resin for fixing the ion exchange resin holding the plant nutritional components to the nonwoven fabric, but the crosslinking agent fixed it to the extent that it would not dissolve in the paperback. It swells well in water and can perform ion exchange smoothly and efficiently. Furthermore, although a nonwoven fabric is used as the fiber sheet, rock wool, glass mat, foamed resin sheet, felt, paper, woven fabric, etc. can also be used. In addition, ion-exchange resin containing plant nutritional components was bonded to nonwoven fabric using adhesive resin.
Of course, after bonding the ion exchange resin powder to the nonwoven fabric,
Nutrient components can also be bound to ion exchange resin powders.

There are slight differences in the nutritional components required depending on the plant, and in the tree example, it is a common element, but various hormones, Akiha L organic acids, etc. can also be combined.

In addition, silk, hemp, cotton, other natural fibers, and chemical fibers such as polypropylene, acrylic, polyethylene, vinyl acetate, and cellulose can be conveniently used as fiber materials, and NBR% is used as a binder for ion exchange resin powder. 8BR1CMO
, polyamide, vinyl chloride, vinyl acetate, acrylic, thermosetting resin such as epoxy, phenol, polyurethane, etc. can be used.

〔effect〕

Since the present invention is configured as described above, the plants and plant cells transplanted onto the nutrient retention sheet only need to be immersed in the supplied water, making the system for growing plants extremely simple and the cost of growing them very low. reduce

Furthermore, since the base sheet is porous, it is also excellent in terms of contact between plant roots and air. It can also be used as a substitute for tops in the agricultural and horticultural field, as a support for hydroponic pets and plants, and as a base material for plant organ culture and tissue culture for biochemistry. . Furthermore, this invention has excellent effects such as the fact that the used nutritional component retaining sheet can be reused by recombining the inorganic and organic nutritional components necessary for growth.

[Brief explanation of the drawing]

The drawing is a schematic diagram of a plant nutrient retaining sheet showing an embodiment of the present invention. l...Fiber 8...Ion exchange resin powder retaining plant nutritional components 3...Ion exchange resin adhesive resin 4
・・・・・・Adhesive resin between fibers

Claims (1)

[Claims] Powdered ion-exchange resin or ion-exchange resin that combines organic and inorganic chemical components necessary for plant cell proliferation and plant growth on the fiber surface of a porous fiber sheet made of natural or chemical fibers. A plant nutrient retaining sheet characterized by adhesively bonding fibers together with thermoplastic resin or thermosetting resin.