Straw returning cultivation method based on intermittent fallow

Abstract

The invention provides a straw returning cultivation method based on intermittent fallow. The method comprises the following steps that a, 9 lines are taken as a cultivation belt, and each cultivationbelt is divided into a straw returning fallow area and a planting area; b, after corn is harvested in the autumn of the first year, all straw harvested in the cultivation belts is crushed to a lengthless than 10 centimeters, and then the straw is spirally swept and collected to the straw returning fallow areas and laid flat on the surfaces of the straw returning fallow areas; c, in the spring ofthe second year, 6 lines of corn is seeded in the planting areas; d, in July-August of the second year, the straw returning fallow areas are subjected to deep scarification and rotary tillage; e, after the corn is harvested in the autumn of the second year, the straw returning fallow areas and the planting areas are redistributed; f, the steps b-e are repeated, and fallow maintenance of all farmland soil is accordingly completed once every 3 years. The straw returning cultivation method based on the intermittent fallow has the advantages that a specific surface-coating straw returning methodis adopted, and straw returning and fallowing are carried out simultaneously, so that straw decomposing is accelerated, and overland runoff and water and soil loss are reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for cultivating straw returning to the field based on intermittent fallow. Background technique [0002] For a long time, the high input of chemical fertilizers, irrational tillage, and intensive planting patterns aimed at pursuing yield have led to the decline of organic matter in the cultivated land, the reduction of fertility, and the increase of crop production without increasing efficiency. However, returning straw to the field is the most direct and economical way to fertilize the soil. technical approach. However, the existing technology generally adopts the method of returning straw to the field mainly by plowing. On the one hand, this method will lead to late corn harvest in autumn, and the straw returning operation cannot be carried out after the soil is frozen, or after straw returning in autumn, due to winter The low temperature and slow decomp...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method of returning straw to the field based on intermittent fallow to solve the problems of slow decomposition of straw, accelerated soil loss and unsatisfactory soil fertilization effect in existing farming methods

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