Method for composting corn straw field in-situ earth surface strips

Abstract

The invention provides a method for composting corn straw field in-situ earth surface strips. The method comprises the steps of firstly, crushing corn straw and covering the earth surface with the crushed corn straw; then, pushing the crushed corn straw, covering on seeding belts of next-stubble crops, to the two sides, cleaning bare to-be seeded belts which are not covered by the corn straw, andarranging a strip-shaped straw covering belt with width of 30-60cm between the every two adjacent to-be-seeded belts; pressing the middle parts of the covering belts to form composting belt trenches,applying a composting material to the composting belt trenches, and adjusting the carbon-nitrogen ratio of the composted material to (20 to 1)-(30 to 1); then, filling the composting belt trenches with part of the straw so as to form strip-shaped composting belts; using a strip tillage and stubble cleaning machine to perform shallow ploughing operation treatment, and covering the strip-shaped composting belts with surface soil; pressing the strip-shaped composting belts to obtain the corn straw field in-situ earth surface decomposing belts. The method provided by the invention can realize total crop return of the corn straw, cooperatively uses livestock breeding wastes, is high in cyclic utilization rate, effectively improves field fertility, reduces the applying quantity of chemical fertilizer and is convenient and fast in whole operation, thus being worth popularizing.

Description

technical field [0001] The invention relates to the technical field of agricultural waste treatment, in particular to a method for composting strips of corn stalks in situ on the surface of the field. Background technique [0002] Over the past few years, the agricultural utilization of crop stalks has been paid attention to in varying degrees in agricultural production all over the country. Farmland straw is an important biological resource in the crop production system, and returning straw to the field is a very important agronomic measure. A large number of studies have shown that after straw mulching, soil water, fertilizer, air, heat and other conditions are recombined, which is one of the effective measures and ways for sustainable agricultural development. Under the comprehensive influence of factors such as soil, environment, and the properties of straw itself, its transformation rate is limited by the level of soil biological activity on the one hand, and on the ot...

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Problems solved by technology

[0003] Since crop straw is rich in carbon-rich substances such as cellulose and lignin, as well as various nutrients such as nitrogen, phosphorus, and potassium, it is beneficial to increase soil organic matter and increase soil fertility after returning to the field. Medium conversion is a complex biochemical process. Directly returning crop straw to the field to cover the decomposition process is slow, which affects the growth of the next crop. However, taking out the compost rot requires a lot of work and takes up a lot of space, which is time-consuming and laborious. Therefore, it is necessary to develop a A new method of returning crop straw to the field improves the recycling rate, reduces the difficulty of returning to the field, and ensures the fertility of the field

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