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Soil water-retaining agent and preparation method thereof

A technology of soil water-retaining agent and additive, which is applied in the direction of soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., which can solve the problems of short water-retaining time and water-retaining agent not being able to nutrient farmland, and achieve the effect of promoting nutrient increase

Inactive Publication Date: 2019-01-11
FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a soil water-retaining agent and its preparation method in view of the problems that the current water-retaining agent cannot nourish the farmland and the water-retaining time is short

Method used

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  • Soil water-retaining agent and preparation method thereof

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preparation example Construction

[0022] The preparation method of the microbial respiratory responsive additive is as follows:

[0023] Take sodium vinyl sulfonate and mix it with diethylaminoethyl methacrylate according to the mass ratio of 5~8:1~3 to obtain a mixture. Take the mixture according to the mass ratio of 1~4:40~50, add deionized water, and heat up to 75 Stir and mix at ~80°C for 30~50min, then add ammonium persulfate with 5%~10% of the mass of the mixture, keep warm at 75~80°C for 3~6h, dialyze, take the dialysate for suction filtration, and take the suction filter residue for freeze-drying to obtain microbial respiration Responsive Additives.

[0024] Active bacteria additive: take arbuscular root fungus and add cyanobacteria in a mass ratio of 3~6:1~4 to mix.

[0025] The preparation method of adsorption type particle additive is:

[0026] (1) Take the zeolite and raise the temperature to 250~300°C for 20~30min, then raise the temperature to 400~450°C for activation for 2~4h, cool down to roo...

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Abstract

The invention discloses a soil water-retaining agent and a preparation method thereof, which belong to the field of crops production. The method adopts chitosan as a first layer network structure, sodium ethylene sulfonate, 2-diethylaminoethyl methacrylate and the like are added to a network structure, the moisture can be better locked, the respiratory action of microorganisms in the soil is always present, and can assist the water-retaining agent for long-term moisture preservation; in the first layer network structure, arbuscular mycorrhizal fungi and cyanobacteria are simultaneously added and mixed, a microbial respiratory responsive additive and carbon dioxide are acted, soil activity is activated, the microbe growth is stimulated, and nutrient can be provided; zeolite is modified by cetyl pyridine bromide, the water-absorption activity is increased, and moisture adsorption quantity is increased, at the same time, the mechanical properties of the gel are enhanced and not lost by the impact of external force, and the water retention performance is stably exerted. The soil water-retaining agent solves the problems of insufficient nutrition to farmland and short water-retention time efficiency of the current water-retaining agents.

Description

technical field [0001] The invention relates to the field of crop production, in particular to a soil water retaining agent and a preparation method thereof. Background technique [0002] As a kind of chemically controlled water-saving material, soil water-retaining agent is also called superabsorbent resin. The intermolecular is a network structure formed by cross-linking and polymerization. It contains a strong hydrophilic group. It can quickly It absorbs water ten times, one hundred times or even one thousand times its own mass, forms a gel, and can absorb water repeatedly. Water retaining agent can stabilize soil structure, reduce soil bulk density, increase soil capillary water holding capacity, increase water infiltration, control soil water evaporation, reduce drought stress, and promote plant growth and development. According to the source of raw materials, it can be divided into synthetic resin, starch and cellulose. Starch water-retaining agents are rich in raw m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40
CPCC09K17/40
Inventor 胡次兵路芸卢星
Owner FOSHAN CHANCHENG DISTRICT NUOGAO ENVIRONMENTAL PROTECTION TECH CO LTD
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