Liquid microbial fertilizer with nitrogen-fixing, phosphorus-dissolving and potassium-dissolving effects, and preparation method thereof

Abstract

The invention relates to a liquid microbial fertilizer with nitrogen-fixing, phosphorus-dissolving and potassium-dissolving effects, and a preparation method thereof. The liquid microbial fertilizer consists of the following microbial fermentation liquids in parts by volume: 1 to 10 parts of azotobacter chroococcum, 1 to 30 parts of bacillus mucilaginosus, 1 to 10 parts of phosphorus-dissolving bacillus megatherium, 1 to 10 parts of bacillus amyloliquefaciens, 1 to 10 parts of bacillus subtilis, 1 to 5 parts of photosynthetic bacteria and 1 to 10 parts of streptomyces microflavus. The functional bacteria serve as main functional flora of the microbial fertilizer, so that the obtained product has remarkable effects of fixing nitrogen, dissolving phosphorus, dissolving potassium and resisting disease, can enhance the total metabolic activity of soil bacterial community and the diversity of the bacterial community, improve the soil micro-ecological environment, promote growth and reproduction of beneficial microorganisms and inhibit the growth of pathogenic bacteria, is an ideal fertilizer in green agriculture and organic agriculture, and has a wide prospect in agricultural sustainable development.

Description

technical field [0001] The invention belongs to the field of fertilizers, and in particular relates to a liquid microbial fertilizer with the functions of fixing nitrogen, decomposing phosphorus and potassium and a preparation method thereof. Background technique [0002] Microbial fertilizers, also known as biological fertilizers, bacterial fertilizers or inoculants, are a type of microbial living products that use microbial life activities and their products to cause crops to obtain specific fertilizer effects. Microbial fertilizers can improve soil fertility, improve the utilization rate of chemical fertilizers, inhibit the absorption of nitrate nitrogen, heavy metals, and pesticides by crops, purify and restore soil, reduce the occurrence of crop diseases, promote the utilization of crop straws, protect the farmland environment, and improve the quality and quality of crop products. Food safety plays an irreplaceable role and is the key to the simultaneous and sustainable...

AI Technical Summary

Problems solved by technology

However, a single fertilizer microbial strain can only provide a single nutrient or a single function. In agricultural production practice, nitrogen, phosphorus, potassium and other medium elements need a balanced and coordinated supply. Therefore, multi-strain compounding is the basis of microbial fertilizer research one of the problems

[0004] Chinese patent application 103613441 A discloses a compound microbial fertilizer and its preparation method. The compound microbial fertilizer is prepared by mixing molasses, bran, sugarcane filter mud, smoke powder, medical stone, decomposing bacteria, nitrogen-fixing, phosphorus-decomposing and potassium-decomposing bacteria. After 30 days of fermentation with bentonite in the fermenter, the wet bacteria are collected, and then the wet bacteria are sterilized by high temperature, granulated and dried. Therefore, the prepared microbial fertilizer does not contain beneficial microorganisms such as nitrogen-fixing, phosphorus-, potassium-, and potassium-resolving bacteria, and the product itself does not have the effect of nitrogen-fixing, phosphorus, and potassium-releasing

Chinese patent application 1331061 A discloses a microbial fertilizer with the functions of nitrogen fixation, phosphorus decomposition and potassium decomposition. The effect of promoting plant growth, but the microbial fertilizer does not add microorganisms that inhibit the growth and reproduction of plant pathogenic bacteria, and cannot directly and effectively prevent and control plant diseases

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