Organic-inorganic compound bacterial fertilizer and preparation method of compound bacterial fertilizer

Abstract

The invention provides an organic-inorganic compound bacterial fertilizer and a preparation method of the compound bacterial fertilizer. The compound bacterial fertilizer is prepared from the following materials in parts by weight: 20-80 parts of an inorganic fertilizer, 10-40 parts of organic matter, 2-20 parts of a soil conditioner, 0.01-2 parts of microelements and 0.001-0.04 part of microbial bacteria. The preparation method of the compound bacterial fertilizer comprises the following steps: (1) detecting macroelements, microelements and the organic matter in the soil; (2) separating, screening, identifying, culturing and compounding strains; (3) taking flour as a carrier of microbial bacteria, uniformly stirring and drying at a low temperature to prepare bacterial powder; (4) mixing and stirring the bacterial powder with the organic matter and the microelements according to a certain ratio to prepare a mixture; and (5) adding the mixture, the inorganic fertilizer and the soil conditioner into a small quantity of water, prilling, drying at the low temperature and bagging to prepare the compound bacterial fertilizer. The bacterial fertilizer has the effects of remarkably increasing effective microbial communities needed by the crops, decomposing slowly-available nutrient in the soil, improving fertilizer efficiency of the soil, increasing the yield of the crops, increasing the utilization rate of the fertilizer, effectively relieving soil hardness and detoxifying heavy metals.

Description

technical field [0001] The invention relates to an organic-inorganic compound bacterial fertilizer for increasing crop yield and improving soil environment. Background technique [0002] In recent years, inorganic chemical fertilizers are mainly used to increase crop production. However, the perennial application of inorganic chemical fertilizers can satisfy the macronutrients required by plants. Due to the lack of corresponding crop fertilizer knowledge, unreasonable fertilization methods and the lack of trace elements in compound fertilizers, the soil Some macronutrients in the soil are seriously exceeding the standard, and some medium and micronutrients required by crops cannot be replenished all year round, and soil organic matter cannot be replenished year after year; therefore, the use of chemical fertilizers increases year by year, crop yields stagnate, and crop quality Continuous decline, severe soil compaction, excessive heavy metal content, poor air permeability, w...

AI Technical Summary

Problems solved by technology

However, the disadvantage of organic fertilizers is that although their nutritional components are relatively comprehensive, the content of nitrogen, phosphorus and potassium, a large amount of nutrients required by crops, is relatively low, and their sum is generally around 5%.

Most of the existing microbial fertilizers are single microbial fertilizers. These biological fertilizers often need to be used in conjunction with organic fertilizers. The cost itself is too high and labor costs are increased.