Microbial compound bacterial fertilizer and preparation method thereof

Abstract

The invention discloses a microbial compound bacterial fertilizer and a preparation method thereof and belongs to the technical field of microbial bacterial fertilizers. The microbial compound bacterial fertilizer contains not less than 30% of organic matters, not less than 4% of nitrogen, not less than 4% of phosphorus and not less than 4% of potassium; furthermore, each gram of the bacterial fertilizer contains phosphate-solubilizing bacteria, potassium-releasing bacteria, nitrogen-fixing bacteria, alkaliphilic bacteria and halophiles, the number of each is 0.015-0.025 billion, and the number of thermophilic bacteria and thermophilic actinomycetes is 0.02-0.03 billion. The microbial compound bacterial fertilizer contains microbes for improving the soil structure, halophilic and alkaliphilic microbes and thermophilic microbes. The microbes for improving the soil structure contain abiogenous azotobacter and phosphate-solubilizing and potassium-releasing bacteria, and can enable the hardened soil (caused by the fertilizer) to become loose, increase the content of organic matters in the soil and improve the soil structure; the thermophilic bacteria and the thermophilic actinomycetes can be used for decomposing and composting straw, enabling the straw to become an agricultural fertilizer and increasing the soil fertility; halophilic and alkaliphilic bacteria can survive and proliferate in a saline-alkali soil environment, realize a special effect of improving the pH value of saline-alkali land, turn the saline-alkali land into treasure and enable the bacterial fertilizer to become a dual-purpose bacterial fertilizer for normal soil and saline-alkali soil.

Description

technical field [0001] The invention relates to a microbial compound bacterial fertilizer and a preparation method thereof, belonging to the field of fertilizer manufacturing technology, in particular to a compound fertilizer using microorganisms and organic matter as raw materials. Background technique [0002] At present, the known fertilizers are all made by chemical and (or) physical methods and contain one or several nutrient elements needed for the growth of crops, which can meet the needs of nitrogen, phosphorus and potassium in the process of plant growth. However, Commonly used chemical fertilizers have been used for many years, resulting in serious compaction of the soil, which has hindered agricultural production and crop production. [0003] With the rapid development of biotechnology, many microbial fertilizers have appeared, ranging from single microbial fertilizers to compound bacterial fertilizers. Functional strains are simply mixed together, and bacterial ...

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Problems solved by technology

[0002] At present, the known fertilizers are all made by chemical and (or) physical methods and contain one or several nutrient elements needed for the growth of crops, which can meet the needs of nitrogen, phosphorus and potassium in the process of plant growth. However, Commonly used chemical fertilizers have been used for many years, resulting in serious compaction of the soil, which has hindered agricultura...

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