Method for preparing biological organic fertilizer

Abstract

The invention relates to a method for preparing a biological organic fertilizer, in particular relates to a method for preparing a biological organic fertilizer with excrement and liquid waste as major raw materials, and belongs to the fields of resources and environment and organic chemical fertilizer production. The method for preparing the biological organic fertilizer comprises the following steps of: mixing and stirring fresh chicken manure, silkworm excrement, silk reeling concentrated liquid waste, rice bran and hull, turf and calcium superphosphate together according to a certain weight ratio; adding fermenting bacterial liquid in the stirring process, thoroughly mixing all the materials and then putting the mixture indoors for natural fermentation for 20-25 days, and turning 3-5 times, and then performing crashing, screening and bagging, thereby obtaining the organic fertilizer. The method provided by the invention is simple in production equipment, small in floor area, wide in raw material source, cheap in raw materials and short in production period; the produced organic fertilizer contains a large quantity of probiotics so as to improve the soil and enhance the plant resistance; and the problem of environmental pollution caused by the chicken manure, the silkworm excrement and the silk reeling concentrated liquid waste can be solved and the production way of the biological organic fertilizer can be also expanded.

Description

technical field [0001] The invention relates to a method for preparing an organic fertilizer, in particular to a method for preparing a bio-organic fertilizer using chicken manure, silkworm excrement, and concentrated waste liquid from reeling as main raw materials, and belongs to the fields of resource environment and organic fertilizer production. Background technique [0002] my country is a large agricultural country, with more than 2 billion mu of cultivated area of ​​crops, and an annual need of more than 140 million tons of fertilizers. Fertilizers are mainly divided into inorganic fertilizers and organic fertilizers. Inorganic fertilizers are also called chemical fertilizers. At present, most of the crops in our country rely on chemical fertilizers. While the extensive use of chemical fertilizers has brought good harvests to agricultural production, it has also led to the sharp deterioration of the physical, chemical and biochemical properties of the soil, the harden...

AI Technical Summary

Problems solved by technology

[0003] At present, the organic fertilizers used in my country are mainly fermented from livestock and poultry manure and soil mounds, which can turn livestock and poultry manure into treasure and solve the problem of environmental pollution, but there are still some shortcomings: First, livestock and poultry manure cannot Fully fermented, the organic matter and nutrients are not high; the second is that the pathogenic bacteria in the manure of livestock and poultry cannot be completely inhibited and killed, and there is potential harm to the crops; the third is that the beneficial microorganisms produced during the fermentation process are Small quantity