Biological organic fertilizer and preparation method thereof

Abstract

The invention discloses a biological organic fertilizer. The biological organic fertilizer is mainly prepared by mixing and fermenting the following raw materials in parts by weight: 50-60 parts of rapeseed meal, 10-20 parts of plant straws, 8-12 parts of garlic residues, 5-7 parts of bagasse, 8-12 parts of oyster shell powder, 2-6 parts of a calcium magnesium phosphate fertilizer, 6-10 parts of amino acid liquid, 20-30 parts of sewage, 1-2 parts of wood vinegar, 0.5-1.5 parts of a decomposed microbial inoculum and 1-3 parts of a composite functional microbial inoculum, wherein the composite functional microbial inoculum is a mixed microbial inoculum of bacillus amyloliquefaciens, bacillus mucilaginosus, bacillus megatherium and metarhizium anisopliae. The various microbial inoculums contained in the decomposed microbial inoculum added in the invention are not antagonistic to one another, and can have a synergistic effect in a fermentation process, so that growth of bacterial strains and production of metabolites are promoted, decomposition of fermentation raw materials is accelerated, and the fermentation period is shortened.

Description

technical field [0001] The invention belongs to the field of agricultural fertilizers, in particular to a high-efficiency bio-organic fertilizer and a preparation method thereof. Background technique [0002] Fertilizer is an important material basis for the development of high-yield and high-quality agriculture, especially in the case of my country's small land and large population, fertilizer is the decisive factor for increasing agricultural yield. Therefore, many agriculture uses chemical fertilizers or organic fertilizers to increase soil fertility. Although chemical fertilizers have the effect of increasing production, they will cause soil compaction, decrease soil fertility, degrade crop quality, reduce fertilizer utilization efficiency, and destroy human living environment. [0003] The organic fertilizer is mainly derived from plants and / or animals. It can not only provide a variety of inorganic nutrients for crops, but also has a long fertilizer effect. It can incr...

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Problems solved by technology

[0004] At present, the main problems of bio-organic fertilizers are: 1. The fermentation period is long, generally it takes about 30 days to ferment, the production cost is high, and the decomposition is not complete; 2. A large amount of odor will be generated during the fermentation process, which will pollute the environment and cause nutrition. The loss reduces the number of effective viable bacteria in the bio-organic fertilizer; 3. The fertility is not high, and the fertilizer effect is not significant

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