Tobacco composite microbial fertilizer and its preparation method

Abstract

Disclosed are a tobacco composite microbial fertilizer and its preparation method. The tobacco composite microbial fertilizer contains an active functional bacteria ingredient, an organic fertilizer ingredient and an inorganic composite fertilizer ingredient, wherein the active functional bacteria ingredient contains phosphate solubilizing bacteria-Bacillus megaterium powder, potassium bacteria-Bacillus mucilaginosus powder, tobacco growth-promoting rhizobacteria-Bacillus amyloliquefaciens powder and tobacco endophytic antagonistic bacteria-Brevibacillus laterosporus powder; and the organic fertilizer ingredient contains decomposed manure, a rapeseed cake fertilizer and straws. The invention also relates to a preparation method of the tobacco composite microbial fertilizer. The fertilizer provided by the invention has advantages of an organic fertilizer, an inorganic fertilizer and a microbial fertilizer. According to the invention, utilization rate of the fertilizer can be raised, soil organic matters can be increased, tobacco plant rhizosphere microbial proliferation can be promoted, soil physical and chemical property and biological activity can be improved, comprehensive and balanced nutrients can be provided for the early growth of tobacco seedling, the occurrence of soil borne disease can be decreased, and flue-cured tobacco output and quality can be substantially improved.

Description

technical field [0001] The invention relates to a tobacco composite microbial fertilizer and a preparation method thereof. Background technique [0002] In the production of flue-cured tobacco in my country, long-term large-scale application of chemical fertilizers has caused acidification and compaction of the soil in the tobacco field, a decrease in the number of active microorganisms, and a low utilization rate of nutrients such as phosphorus and potassium. And the improvement of quality is greatly restricted. [0003] Organic fertilizer is a fertilizer made of biological organic matter after it is decomposed. It is rich in a variety of beneficial substances, including a variety of organic acids, peptides, and nutrients such as nitrogen, phosphorus, and potassium necessary for plants. It can not only provide comprehensive nutrition for crops , and the fertilizer effect is longer, which can increase and renew soil organic matter, promote microbial reproduction, and improve...

AI Technical Summary

Problems solved by technology

[0005] But there are also many defects in the application of existing tobacco organic fertilizers and microbial fertilizers: as the fertility is not enough, the total nutrient (N+P) of existing tobacco bio-organic fertilizer products 2 o 5 +K 2 O) The content is only about 8%, which cannot meet all the nutrients such as nitrogen, phosphorus and potassium required by the crops, and the effect is slow and unstable; the functional bacteria in the existing tobacco bio-organic fertilizers are mainly some colloidal bacillus and megaterium. Phosphorus and potassium bacteria, lack of rhizosphere growth-promoting bacteria and endophytic antagonistic bacteria; organic matter is mainly composed of chicken manure, fungus chaff, straw, etc., which is not conducive to improving tobacco quality

Therefore, existing organic fertilizers and microbial fertilizers cannot fundamentally replace chemical fertilizers

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