Field biological straw composting method for protecting and improving black soil lands

Abstract

The invention discloses a field biological straw composting method for protecting and improving black soil lands, which belongs to the technical field of biofertilizers. According to the method, horizontal rotation type continuous biological fermentation equipment is arranged in the field, a straw decomposition agent and livestock and poultry excrement are inputted into the horizontal rotation type continuous biological fermentation equipment, the straw decomposition agent and the livestock and poultry excrement are uniformly mixed by the horizontal rotation type continuous biological fermentation equipment and then kept still for static fermentation, and after static fermentation is completed, microbe-enriched compost for decomposing straw is obtained and outputted ready for later use; apile is built layer by layer, and after pile building is completed, decomposition and fermentation are carried out under the natural environment, so that straw fertilizer is obtained. The method disclosed by the invention can treat straw in a large amount on the site, nearby, in time and quickly, the obtained straw fertilizer can be directly returned into fields, increase the quantity of effective microbial communities in soil, enhance soil activity, restore crop nutrients and increase the content of soil organic matter, and after being applied in successive years, the straw fertilizer can achieve the objective of protecting the quality of black soil lands and increasing soil fertility.

Description

technical field [0001] The invention relates to a method for field straw biological composting for black soil protection and promotion, and belongs to the technical field of biological fertilizers. Background technique [0002] Black soil is an extremely precious natural resource. In recent years, the degradation of black soil in Northeast China has become increasingly prominent, and it is urgent to strengthen protection. The black soil cultivated land area in Heilongjiang Province accounts for 50.4% of the cultivated land area in the Northeast black soil region. Potassium content decreased by 20.1 mg / kg, the soil bulk density of the plow layer increased, the total amount of beneficial microorganisms in the soil decreased, and the activity also decreased greatly. Returning straw to field and adding organic fertilizer is one of the important measures to protect and improve soil fertility. Straw is the basic resource of organic fertilizer source. As my country's grain produ...

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Problems solved by technology

[0004] In order to solve the problem of uneven mixing of livestock and poultry manure and decomposing agent in the existing straw stacking and composting technology in the field, and the fermentation process is greatly affected by the ambient temperature. For example, in the cold winter in Northeast China, microorganisms are in a dormant state under low temperature conditions, making the straw unable to decompose. As a result of the delay of the overall fermentation process and poor fermentation effect of the straw pile, the present invention provides a method for field straw biocomposting for the protection and promotion of black soil. The method uses horizontal rotary continuous biological fermentation equipment as a carrier, and uses Livestock and poultry manure is used as raw material, and through human intervention, low-medium temperature bacteria are activated and logarithmically multiplied (enriched) to produce microbial-enriched compost for straw decomposing, which is then used for composting and fermenting field straw

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