Straw pocket-type in-situ composting method and device

Abstract

The invention discloses a straw pocket-type in-situ composting method. According to the method, crushed straws are selected and sent into a mixer; a straw decomposing inoculant is sprayed on the straws in the mixer and mixed with the straws; the straws are directly sent through the mixer into bag composters for in-situ composting fermentation; and the bag composters are piled up in bulk to form alarge pile body for thermal insulation, and then water content of the straws in the pile body is maintained at 45-60%; under the biological fermentation action of the straw decomposing inoculants, temperature of the straw powder rapidly rises to 60-70 DEG C for fermentation and decomposing; and the decomposed straws directly undergo rotary tillage in the farmland during spring sowing as a high-quality organic fertilizer. Thereby, the straw crushed material after cutting undergoes pocket-type in-situ composting fermentation, and through a whole winter for repeated temperature rise, temperaturereduction and continuous fermentation for accumulation of enzymatic activity, the straw crushed material is then completely decomposed. The product is used as a high-quality organic fertilizer for returning to the field, and the cost of transportation resources is also reduced. The problem of in-situ resourceful treatment of the crop straw in the field is solved.

Description

technical field [0001] The invention relates to a straw bag-type in-situ composting process and device. It is used to process crop straw as a resource. Specifically, the measures of using biotechnology and bag composting to keep heat and maintain humidity make the straw decompose quickly on the spot, so as to achieve the purpose of resourceful treatment of crop straw. Background technique [0002] How to deal with straw is the most troublesome problem for farmers every time the grain is harvested. The usual practice is for farmers to burn straws on the spot, but the thick smoke generated by straw burning not only seriously pollutes the air (environment), but also directly affects people's physical and mental health. Therefore, the country strictly prohibits straw burning and promotes the return of straw to the field. Straw returning to the field can improve environmental quality and bring huge ecological benefits, but if it is not disposed of properly, there will be certai...

AI Technical Summary

Problems solved by technology

However, in the southern region, because the winter is too humid, the straw directly buried in the soil will not be successfully decomposed and transformed into high-quality organic matter, so it becomes a breeding ground for moldy and smelly germs, a large number of sources of disease and insect pests, and it is directly returned to the field without complete decomposing treatment. Straw, the pests and diseases carried will not be completely eliminated, which will induce the next batch of pests and diseases, harm the crops, and directly affect the yield of crops

If the straw is collected and transported to the organic fertilizer plant for centralized decomposition and fermentation before returning to the field, the cost of transportation resources will increase

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