A biological compound fertilizer

Abstract

The invention discloses a biological compound fertilizer, belonging to the technical field of agricultural fertilizers. The biological compound fertilizer comprises the folllowing components in parts by weight: 5-18 parts of Bacillus mucilaginosus, 2-6 parts of phosphate-solubilizing bacterium, 5-10 parts of potassium bacterium, 18-30 parts of Bacillus subtilis nutrient material, 5-10 parts of Aspergillus awamori nutrient material and 3-8 parts of lactobacillus plantarum microbial inoculum. The fertilizer can enhance the drought resistance of the crops; the Bacillus mucilaginosus in the compound strain is prepared by industrially fermenting high-potassium-solubilizing-capacity silicate bacterium screened from crop roots in a specific culture medium, and can secrete auxin substances, gibberellin substances and other growth promoting substances to reinforce the roots and seedlings; the silicon in the soil is decomposed and supplied to the plant, so that the waxy layer of the plant is thickened, thereby enhancing the water retention capacity of the plant; and the fertilizer can promote the formation of the soil aggregate from, keep soil from packing together, destroy the soil capillarity and prevent the soil moisture from evaporation.

Description

technical field [0001] The invention relates to a biological fertilizer, which belongs to the technical field of agricultural fertilizers, in particular to a biological compound fertilizer. Background technique [0002] Fertilizer pollution has become a major public hazard in the world today. Agricultural experts have unanimously called for reducing the amount of chemical fertilizers to control the environment. An industry expert and academician Chen Wenxin of China Agricultural University believes that the excessive application of chemical fertilizers in my country has reached its limit. Taking nitrogen fertilizer as an example, my country's average application rate is nearly three times that of the United States and more than eight times that of Australia. This has caused a series of serious problems such as the destruction of soil structure, the reduction of natural biodiversity and ecosystem stability. Dr. Li Jun, director of the Agricultural Microbiology Professional ...

AI Technical Summary

Problems solved by technology

[0005] For many years, most of the processing methods of microbial fertilizers only use finished bacterial agents mixed with fillers, lacking fermentation metabolites, which seriously affect the fertilizer efficiency of microbial fertilizer products. For example, the patent application with publication number CN103396252A discloses a compound microorganism containing amino acids Fertilizer, in which the finished microbial agent is composed of Bacillus subtilis, Bacillus licheniformis and Bacillus megaterium mixed in a certain proportion

[0006] Moreover, the agricultural microbial agents currently on the market are mainly single microbial strains, which are difficult to restore the micro-ecological structure. At the same time, the synergy between common strains and crops is weak, which is unfavorable such as improving plant stress resistance and root nutrient absorption. For example, the publication number is The patent application of CN102888356A discloses a method and application of using Bacillus subtilis to prepare microbial fertilizer

Although some compound microbial agents have appeared on the market, their functions are single, or their use methods are limited, and the effect of increasing crop production after use is still unsatisfactory. Composite microbial agent or fertilizer with comprehensive functions and good yield-increasing effect

[0007] Due to the long-term lack of investment in microbial fertilizer research in China, my country's microbial fertilizer industry still has problems such as low overall level, insufficient technological innovation, and unstable product quality and application effects.