Thorough decomposition agent for locally returning straw to fields, and preparation method of thorough decomposition agent

Abstract

The invention relates to a thorough decomposition agent for locally returning straw to fields, and a preparation method of the thorough decomposition agent, and belongs to the technical field of thorough decomposition agents for straw. The thorough decomposition agent disclosed by the invention has the characteristics of being high in decomposition and disintegration efficiency and short in degradation time, and particularly has favorable disintegration effects at normal temperature and even low temperature. The thorough decomposition agent for locally returning straw to fields, disclosed by the invention, is prepared through the steps of performing fermentation with bacillus amyloliquefaciens, aspergillus niger, trichoderma longibrachiatum and saccharomyces cerevisiae respectively to obtain fermentation liquid, and mixing the fermentation liquid, wherein the ratio of the unit number of colonies of bacillus amyloliquefaciens agent fermentation liquid to the unit number of colonies of aspergillus niger agent fermentation liquid to the unit number of colonies of trichoderma longibrachiatum agent fermentation liquid to the unit number of colonies of saccharomyces cerevisiae fermentation liquid is 2:3:3:1. The thorough decomposition agent for locally returning straw to fields, obtained by the preparation method disclosed by the invention can promote rapid thorough decomposition ofthe straw and enable the thoroughly decomposed straw to return to the fields, can supplement soil organic matter, can sufficiently release and utilize nitrogen, phosphorus and potassium nutrients in the straw, and besides, can improve soil microorganism environment.

Description

technical field [0001] The invention belongs to the technical field of straw decomposing agent, and in particular relates to a straw decomposing agent for returning to field on site and a preparation method thereof. Background technique [0002] Straw returning is a method of applying straw as a by-product of crops to the soil directly or after stacking and decomposing. Straw contains a large amount of fresh organic materials. After returning to the farmland, after a period of decomposition, it can be transformed into organic matter and available nutrients, which can improve soil physical and chemical properties and supply certain nutrients. Straw returning to the field can promote agricultural water saving, cost saving, increase in production and efficiency, and has received full attention in environmental protection and sustainable agricultural development. [0003] Returning straw to the field has many advantages. Straw returning to the field can increase the fresh orga...

AI Technical Summary

Problems solved by technology

However, the cycle of using this bacterial agent to promote the complete decomposition of straw is too long, about one month, so it is not suitable for application in multi-crop agricultural areas with tight stubble.