Production of desertification land improvement material with steam shatter stalk solid-state fermentation

Abstract

The invention relates to a preparation method of desertification land modified materials through steam shattering straws and solid state fermentation, which consists of the following steps, first, pretreatment is given to straws, thus obtaining the straw raw materials shattered by steam, after being shattered, straws are put together with wheat bran for solid state fermentation so as to produce functional materials with biological fertilizer and plant disease prevention and treatment, then the materials are remixed with degradable bacterial cellulose with strong water absorption. The products can improve the microstructure of soil, and reduce the using amount of active water retaining agent, the great amount of soil beneficial microorganism enriched has the functions of water storing, soil moisture conservation, and nutrient element slow releasing, etc., so the products are suitable for the mass application of the prevention and treatment of sand land, wherein, the organic content of the products is more than 60 percent, the content of humus is more than 15 percent, and the total number of effective living bacteria is more than 0.3 billion per gram.

Description

Technical field [0001] The invention relates to a method for preparing materials for improving sandy land, in particular to a method for preparing materials for improving sandy land by solid-state fermentation of broken straw by steam explosion Background technique [0002] Land desertification is one of the most serious ecological and environmental problems in my country. The area of ​​desertified land is 1,739,700 square kilometers, accounting for 18.12% of the total land area. Although my country has increased its efforts to control and improve desertified land in recent years, it is still under treatment. The stage of stalemate with desertification. The use of straws for desertification land management has been applied in my country since the 1990s. The initial main methods are similar to those abroad. Straws are often buried to make sand prevention barriers or cover sand prevention. However, this application cannot solve the problem fundamentally. The method can only be a ve...

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Problems solved by technology

[0005] [Purpose of the present invention] Aiming at the unsatisfactory pretreatment process of using straw to prepare sandy land improvement materials, the existence of environmental pollution, and the excessive application cost caused by the addition of inorganic fertilizers, humic acid, nutrients and other ingredients in the processing process The problem is to provide a method for preparing sandy land improvement materials by steam explosion crushing and solid-state fermentation of straw. Through steam explosion and solid-state fermentation, the texture and characteristics of straw raw materials are improved, and the efficacy of biological fertilizers is increased to reduce the amount of chemical fertilizers and environmental pollution. Reducing the technical cost of land desertification prevention and control