Microbial fertilizer for improving acid soil and improving fertility and preparation method of microbial fertilizer

Abstract

The invention discloses a microbial fertilizer for improving acid soil and improving fertility and a preparation method of the microbial fertilizer. The fertilizer comprises 120-150 parts of common farm manure, 1-2 parts of rock phosphate powder and 10-12 parts of nutritional powder preserved with targeted microorganisms. The nutritional powder preserved with the targeted microorganisms comprises the following components in parts by weight: 3-4 parts of nutritional powder preserved with acid-resisting H6 bacillus sphaericus, 4-5 parts of nutritional powder preserved with white-rot fungi and 3-4 parts of nutritional powder preserved with streptomyces albus. The invention further discloses a method for screening and cultivating three effective microorganisms. The method comprises the following specific steps: screening and cultivating the acid-resisting H6 bacillus sphaericus; screening and cultivating the white-rot fungi; screening and cultivating the streptomyces albus; and proportioning and preparing the fertilizer. The microbial fertilizer can improve an acid environment and improve fertility of the soil; functions of various effective microorganisms are complemented; the comprehensive treatment effect is good; and treatment efficiency lasting time is long.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a microbial fertilizer for acidic soil improvement and fertilization and a manufacturing method thereof. Background technique [0002] Acidic soil is the general term for soil with a pH value less than 7. Including brick red soil, red soil, red soil, yellow soil and dry red soil and other soil types. In the tropical and subtropical regions of my country, acidic soils of various red or yellow soils are widely distributed. The local temperature is high and the rainfall is heavy, with the annual rainfall mostly above 1500mm. The characteristics of high temperature, rainy season, and hot and humid seasons make the weathering and pedogenesis of the soil very strong, and the cycle of biological matter is very rapid. The base is highly unsaturated and the pH is generally 4.5-6. At the same time, iron and aluminum oxides are obviously accumulated, and the soil is sour and thin. ...

AI Technical Summary

Problems solved by technology

[0004] Among the relevant patents that have been applied in China, the patent "Humic Acid Microbial Ecological Fertilizer and Its Preparation and Application Method" (application number: 201510482541.7, publication date: 2015-12-16) discloses a humic acid microbial ecological fertilizer and Its preparation and use methods adopt Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus megaterium as target microorganisms, and then add it to the microbial ecological fertilizer of humic acid organic matter matrix, but this fertilizer not only cannot reduce soil acidity, but will increase soil acidity. Acidity, even normal soil acidification, in addition, because fertilizers are generally used to cultivate plants, and plants are more likely to absorb nutrients that are decomposed into inorganic substances, and the three bacteria mentioned in the patent are not good at decomposing organic matter transformation It is an inorganic substance and cannot increase soil fertility. These three microorganisms have similar functions, so they are not complementary to each other, and the comprehensive treatment effect is not good; the patent "a method for producing compound microbial fertilizers using lactic acid industrial waste" (application number : 201010202974.X, publication date: 2011-12-21) discloses a kind of lactic acid slag, humic acid, straw ash, ammonium bicarbonate or / and superphosphate, granulation auxiliary agent, saccharomycete, microbial bacterium, plant Growth regulator compound microbial fertilizer, but because the substrate it uses is also acidic, it will increase the acidity of the soil. In addition, due to the limitation of its microbial nature, it is anaerobic and has a short lifespan in acidic soil that requires deep plowing. Governance period is short