Method for preparing environmental-protection fertilizer from agricultural and animal husbandry wastes

Abstract

The invention discloses a method for preparing an environmental-protection fertilizer from agricultural and animal husbandry wastes, and belongs to the technical field of utilization of agricultural and animal husbandry wastes. The environmental-protection fertilizer is prepared by the steps: firstly, fermenting livestock and poultry feces, crushing crop straw, carrying out sterilization treatmenton domestic garbage and fermenting, then stirring and mixing the fermented livestock and poultry feces, the crushed crop straw, the domestic garbage fermentation material, earthworm manure and rottenleaf soil evenly, then sending the mixture into a high temperature aerobic fermentation tank, fermenting, adding a bacterial solution blended by an organic fertilizer fermentation agent, then inoculating the high-temperature aerobic fermentation tank, mixing evenly, then adding water to weighed humic acid, urea and calcium superphosphate and diluting, mixing and stirring to obtain a mixed solution, then adding to the high-temperature aerobic fermentation tank, fermenting for 20-28 days, after the fermentation is finished, drying the fermentation product at the temperature of 45-65 DEG C, drying to the moisture content of 10% or less, deodorizing, crushing to pass through a 300-400 mesh sieve, and thus obtaining the environmental-protection fertilizer. The environmental-protection fertilizer effectively utilizes the agricultural and animal husbandry wastes, has a wide range of sources, can avoid soil compaction, and has the effect of loosening soil texture.

Description

technical field [0001] The invention relates to the technical field of animal husbandry waste utilization, in particular to a method for preparing environmentally friendly fertilizers from agricultural and animal husbandry waste. Background technique [0002] The growth of crops requires a variety of nutrients. Among them, the macronutrient elements required for crop growth include carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, and the micronutrient elements include boron, copper, iron, manganese, molybdenum, zinc, and chlorine. Fertilizer is the food of crops, and the nutrients needed for crop growth must be supplemented by applying fertilizers. With years of fertilization, soil compaction and acidification have accumulated, and a certain amount of heavy metal ions have accumulated, which has caused pollution in some areas and affected food safety. Therefore, it is of great significance to study how to improve the soil and incre...

AI Technical Summary

Problems solved by technology

With years of fertilization, soil compaction and acidification have accumulated, and a certain amount of heavy metal ions have accumulated, which has caused pollution in some areas and affected food safety.

Therefore, it is of great significance to study how to improve the soil and improve the nitrogen utilization rate in fertilizers. However, traditional organic fertilizer products cannot solve various pollution problems well. Therefore, it is imminent to speed up the development of environmentally friendly fertilizers.

Images