Field centralized well-rotting fertilizer transformation utilization method of straw

Abstract

The invention discloses a field centralized well-rotting fertilizer transformation utilization method of straw. According to the method, agricultural straw is harvested together and is smashed when a crop is reaped, and then the agricultural straw is subjected to on-the-spot centralized well-rotting processing. During the well rotting of the straw, soil, calcium superphosphate, urea, water and compound microbial inoculums (including trichoderma reesei, aspergillus niger, saccharomyces cerevisiae and bacillus subtilis) are added into the straw according to a certain proportion; an obtained mixture is mixed, and then the obtained mixture is covered with a film; afterwards, the obtained mixture is further fermented; the straw can be completely well rotted after 17 to 23 days; the mixture is laid open and aired, and then is subjected to on-the-spot fertilizer transformation utilization. The method is simple in treatment way, convenient to operate and low in cost, is easily learned and easily understood by a peasant, has stronger popularization value and application value; the realization of the resource transformation utilization of the straw is facilitated.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a method for fertilizing and utilizing concentrated straw decomposing in the field. technical background [0002] As a large agricultural country, my country's annual output of various agricultural straws reaches 1.3 billion tons, and with changes in rural production and lifestyles, more than 50% of agricultural straws are discarded or directly burned, which is not only a huge waste of resources but also brings to serious pollution problems. Developed countries such as Japan, the United States, and Western Europe have relatively mature technologies for using straw to generate electricity, generate biogas, produce ethanol, and apply building materials, and more than 70% of straw has been effectively utilized. As far as my country's current technical level and agricultural model are concerned, straw returning to the field is the only practical and economical green treatment m...

AI Technical Summary

Problems solved by technology

[0005] The above patents show that straw can be converted into organic fertilizer under the action of microorganisms. Many patented technologies need to add a large amount of livestock and poultry manure during the decomposing and fermentation process, or crush the straw to a small particle size (below 1cm), or put the straw over a long distance. Transportation to factories for processing, or using straw as supplementary material and mixing fermentation with a large amount of livestock and poultry manure, these methods have obstacles to popularization such as high straw transportation costs and high crushing costs, and the processing capacity is too small compared to the huge straw production

If only straw is piled up and decomposed (without adding livestock and poultry manure), it usually takes 2-3 months to fully decompose. The cycle is long, the efficiency is low, land resources are occupied, and straw resource utilization cannot be realized quickly and efficiently.