Preparation method of bio-organic fertilizer

Abstract

The invention relates to the field of fertilizer processing and provides a preparation method of a bio-organic fertilizer. The preparation method comprises the following specific steps: uniformly mixing the following base materials (in parts by weight): 70-95 parts of animal dung and 5-30 parts of plant straw; sprinkling a compound bacterial agent, controlling the water content to 50-55%, and fermenting for 6-9 days, wherein 1-2kg of MP compound probiotics and 1-2kg of MP partner are added into each ton of base materials, and the MP compound probiotics comprise 7-12 parts of compound strains, 7-12 parts of syrup, 1-1.5 parts of bran, 0.05-0.1 part of carbamide, 0.05-0.1 part of NaCl, 0.01-0.05 part of tea and 180-250 parts of water; and performing secondary turning: throwing and turning the obtained fermented material, controlling the water content to 40-45%, and fermenting for 6-9 days. The bio-organic fertilizer prepared by the preparation method has the advantages of high fermentation efficiency, short period and high composting degree.

Description

technical field [0001] The invention relates to the field of fertilizer processing, in particular to a preparation method of bio-organic fertilizer. Background technique [0002] With the development of animal husbandry, my country has become the world's largest breeding country. In addition to meeting people's growing demand for meat, its large amount of excrement has also caused a relatively serious environmental burden. Cause groundwater pollution, microbial content exceeds the standard, and toxic and harmful substances seriously exceed the environmental tolerance. At the same time, feces also pollute the air obviously, harmful gases such as ammonia and sulfur dioxide increase, and livestock and poultry manure cause soil acidification and heavy metal residues. . And poultry manure itself contains a large amount of nitrogen, phosphorus and other elements, and is a kind of nutrient-rich organic fertilizer. Therefore, the rational use of poultry manure and turning waste into ...

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