Soil activation type microbial fertilizer and preparation method thereof

Abstract

The invention discloses a soil activation type microbial fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The fertilizer is prepared from the following raw materials in parts by weight: 100-200 parts of humic acid, 80-120 parts of furfural residues, 80-120 parts of soybean meal, 20-50 parts of charcoal, 10-20 parts of urea, 5-10 parts of monoammonium phosphate, 10-20 parts of potassium sulfate, 5-10 parts of potassium pyrophosphate, 1-3 parts of medium trace elements, 1-3 parts of a compound microbial agent, 5-10 parts of water retention gel and 0.5-1.5 parts of an accelerant. The humic acid, the biochar and other substances are used as main raw materials, so that the use amount of inorganic fertilizer is reduced; the composite microbial agent and the water-retaining gel are added, the raw materials interact with one another to jointly achieve crop yield and efficiency increase, meanwhile, soil phosphatase and microbial activity are greatly improved, the soil ecological environment is improved, soil recycling is promoted, and sustainable development of agriculture is achieved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a soil-activated microbial fertilizer and a preparation method thereof. Background technique [0002] Phosphorus is a macronutrient element necessary for the growth and development of crops, and has an important impact on crop yield and quality. However, phosphorus in soil is easily combined with Al in soil 3+ , Fe 3+ and Ca 2+ Plasma produces chemical precipitation or is adsorbed and fixed by the soil, so that the available phosphorus that can be absorbed and utilized by crops is converted into ineffective phosphorus that cannot be used by crops in the soil, thereby reducing the utilization rate of phosphorus fertilizer. The low utilization rate of phosphorus fertilizer makes the soil A large amount of phosphorus is lost, leading to a series of environmental problems such as soil acidification, water eutrophication and the production of greenhouse gases. 25%-5...

AI Technical Summary

Problems solved by technology

Lime is a traditionally recognized acidifying soil amendment, which can rapidly increase soil pH in a short period of time and achieve a certain effect of increasing yield, but if it is used for a long time, it may lead to "re-acidification" of the soil

Biochar is a new type of soil amendment that has emerged in recent years. However, biochar is expensive as an amendment on the one hand, and on the other hand, if biochar is used for a long time, it may cause this part of the substance to accumulate in the soil and cause secondary pollution of the soil.

[0005] Such alternate application of chemical fertilizers and soil improvers can superficially increase production and efficiency, but in essence, the soil microenvironment, biological activity and effective nutrients will only be more seriously damaged. Such a vicious cycle does not Not conducive to the sustainable development of agriculture

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