The Cultivation Method of Corn Tillage and Non-staggered Straw Returning to the Field

Abstract

The invention discloses a cultivation method for staggered corn stalks returned to the field in the form of staggered tillage without tillage. The method includes: Step 1. Before the crops are sown, the crop stalks of the previous season are crushed in situ, and the ridges are cleared and brought back for the first time. The straw is mixed in the soil layer at the returning belt, the first sowing belt is formed at the ridge clearing place, and the first returning belt is formed at the returning belt; step 2, before the crops are sown in the next season, the crop straws are crushed in situ, and the For the second ridge clearing and belt returning, the straw at the returning belt is mixed in the soil layer, the second sowing belt is formed at the clearing ridge, and the second returning belt is formed at the returning belt; in the two adjacent planting seasons, The positions of the sowing belt and the field returning belt are exchanged, or the second sowing belt is translated to the position of the first returning field belt to form striped interval tillage. The invention creates a "virtual and solid" plow layer structure, which has the advantages of no-tillage and deep plowing, not only effectively solves the most critical problem in straw returning to the field, but also an effective way to build a reasonable plow layer and improve soil fertility in dry land.

Description

technical field [0001] The invention belongs to the technical field of farmland soil fertilization and cultivation, and relates to a method for cultivating corn tillage-free staggered straw strip-shaped returning, in particular to a corn tillage-free staggered straw strip-shaped return that improves soil water storage, water supply, and moisture conservation capabilities, and ensures high and stable yields of crops. Field cultivation method. Background technique [0002] my country's dry land area is 1.109 billion mu, accounting for 56.8% of the country's total cultivated land area. It is mainly distributed in the main grain-producing areas of Northeast China, North China, and Northwest China. Its crop production has important strategic significance for ensuring national food security. However, in the past 30 years, the continuous small-scale agricultural machinery shallow plowing and the predatory production mode of reusing farmland and ignoring cultivation have caused prob...

AI Technical Summary

Problems solved by technology

However, in the past 30 years, the continuous small-scale agricultural machinery shallow plowing and the predatory production mode of reusing farmland and ignoring cultivation have caused problems such as shallowing of the soil plow layer, upward movement of the plow bottom layer, weakening of the soil buffer capacity, and conflicts between water, fertilizer, air, and heat. The resulting problems such as low crop yield, large inter-annual variation of yield, and decline in resource utilization efficiency are also becoming more and more serious. The deterioration of the soil plow layer environment has become a key bottleneck restricting high and stable crop yields and efficient use of resources.

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