Method for planting corns by smashing, rotatably mixing and returning corn straw

Abstract

The invention provides a method for planting corns by smashing, rotatably mixing and returning corn straw. The method comprises the following steps that 1, corns are harvested, corn straw is smashed and then undergoes rotary mixing processing to fully and evenly mix the straw and soil, wherein the ground surface straw coverage rate is 10% or below; 2, in spring in the second year, the corns are sowed. By adopting the method for planting corns by smashing, rotatably mixing and returning corn straw, straw is smashed through processing with a corn harvester or a straw returning machine, then rotary tillage and even mixing processing are directly performed by utilizing a rotary cultivator, all straw can be uniformly and rotatably put in soil to achieve complete straw returning, the soil surface straw coverage rate is 10% or below, the regional straw incineration possibility is completely eradicated due to ultra-small soil surface layer straw coverage amount, the 'zero risk' of straw incineration is really achieved, and the method is suitable for saline-alkali soil, windy sand soil and non-heavy-clay chernozem or light chernozem.

Description

technical field [0001] The invention relates to the technical field of corn cultivation and planting, in particular to a method for crushing corn stalks, whirling and returning them to the field for planting corn. Background technique [0002] Northeast China is the main corn production area in China, with planting area accounting for more than 1 / 3 of the country and total production accounting for 40% of the country. It is known as China's "granary". However, there are still 10% of the low-yielding wind-blown sandy soil areas in this area. This type of soil has large pores, is susceptible to wind erosion and water erosion, and has poor water and fertilizer retention capacity, leakage of fertilizer and water. Under the traditional farming methods of farmers, land use and cultivation are uncoordinated. , the soil fertility is declining year by year, and the corn yield is low, which has become the main obstacle to corn production in the sandy soil area of ​​Northeast China. T...

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a method of crushing corn stalks, spinning and mixing them and returning them to the field to plant corn, so as to solve the problem that the existing technology cannot completely solve the problem of returning straws to the field to improve soil fertility and realizing straw burning in the windy and sandy farmland in the northeast. The problem of effective cultivation and cultivation of corn with "zero risk", the method of crushing corn stalks and rotary mixing and returning them to the field to plant corn, after crushing the stalks by a corn mechanical machine, using a rotary tiller to directly carry out rotary tillage and mixing treatment, the straw can be All the straws are evenly screwed into the soil, so that 100% of the straw can be returned to the field, and the straw coverage rate on the soil surface is below 10%. Due to the very little straw coverage on the soil surface, the probability of straw burning in the area is reduced, and the "zero risk" of straw burning is truly realized. "

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