Soil water-retention agent and preparation method thereof

Abstract

The invention discloses a preparation method of a soil water-retention agent. The preparation method comprises the following steps: preparing coconut shell powder and sugar palm fruit powder for later use; uniformly mixing the coconut shell powder and the sugar palm fruit powder according to a certain volume ratio, and carrying out fermentation to prepare a fermentation product; uniformly mixing alga seeds and the fermentation product according to a certain volume ratio to obtain a soil water-retention agent base material; cutting retinervus luffae fructus into rectangular blocks; dissolving the soil water-retention agent base material in water, and uniformly mixing the solution with the retinervus luffae fructus rectangular blocks according to a certain volume ratio to obtain a soil water-retention agent secondary material; drying the soil water-retention agent secondary material, compressing the dried soil water-retention agent secondary material into blocks, and dicing according to a certain specification to obtain a diced soil water-retention agent tertiary material; and compressing the surface layer of the soil water-retention agent tertiary material to obtain an activated carbon layer of which the thickness is less than or equal to 0.4mm. The soil water-retention agent is nontoxic and harmless, can slowly release nutrients in the natural degradation process, and can enhance the quality and yield of hemerophytes to some extent.

Description

technical field [0001] The invention relates to the technical field of water-absorbing and moisturizing agents for environmental protection materials. More specifically, the present invention relates to a soil water retaining agent and a preparation method thereof. Background technique [0002] Water retaining agent (Water retaining agent) is a chemical water-saving, high-tech drought-resistant product that has developed rapidly in recent years. It has been gradually applied to the production of flowers, seedlings and crops. The water retaining agent has the characteristics of fast absorption and slow release of water, which can reduce the surface water of the cultivation substrate and the evaporation of substrate water. That is to say, during the watering process, the water-retaining agent can store the gravitational water that cannot be continuously used by the plants, effectively increase the water holding capacity of the substrate, and then gradually release the water f...

AI Technical Summary

Problems solved by technology

However, because its synthetic raw material comes from petroleum processing product acrylic acid, the shortage of petroleum energy and the rise in the price of acrylic acid increase the production cost of sodium polyacrylate water-retaining agent, and the promotion in soilless cultivation application is slow

Under certain conditions, the degradation of this type of water retaining agent may also produce harmful substances, which will adversely affect plant growth.

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