Preparation method of composite strain bio-organic fertilizer

Abstract

The invention provides a preparation method of a composite strain bio-organic fertilizer. The preparation method comprises the following steps: (1) screening and separating composite microbial strain;(2) key process technology research on inoculation between the composite microbial agent and an organic fertilizer; (3) formulating a product quality standard of the bio-organic fertilizer; and (4) performing industrialization production of the bio-organic fertilizer. By selecting appropriate microbes, the special microbial strain special for the organic fertilizer is screened, the high-efficiency and environmental-friendly bio-organic fertilizer is further cultured, the microbial strain for organic matter fermentation is provided for microbial fertilizer production enterprises, agriculturalplanting cooperation and vast peasants in China, waste materials are changed into things of value, sustainable development of agriculture in China is realized, the quality and safety of agricultural products are improved, the planting environment is improved, environmental benefits are realized, and huge effects are achieved. The project accords with goals of national 'circular economy' and 'low carbon economy'. The project implementation has obvious economic benefits, social benefits and ecological benefits.

Description

technical field [0001] The invention belongs to the technical field of biological fertilizers, and in particular relates to a preparation method of compound strain biological organic fertilizers. Background technique [0002] The amount of chemical fertilizers used in my country has reached more than 40,000 tons per year, and it is mainly based on a single chemical fertilizer, such as nitrogen fertilizer and phosphorus fertilizer. Serious loss of nitrogen fertilizers leads to pollution of rivers and lakes, excessive use of nitrate in vegetables and other agricultural products, excessive use of phosphate fertilizers, accumulation of radioactive substances in phosphate rocks and heavy metals such as Cd in the soil, which will affect the food safety of agricultural products. The abuse of chemical fertilizers has caused soil compaction and low organic matter content. The organic matter content of American soil is 7-10 times that of my country. According to data, developed countri...

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Problems solved by technology

In recent years, relevant departments have vigorously advocated increasing the application of organic fertilizers, which has a certain effect on alleviating the deterioration of soil quality. The application of organic fertilizers promotes the reproduction of soil microorganisms and improves the physical and chemical environment of the soil to some extent. However, organic fertilizers must have A large number of microorganisms participate in the decomposition, and the organic fertilizer without the participation of beneficial microbial strains will be water without a source and without roots