Sub-soiling tillage at different times

Abstract

The invention discloses a sub-soiling tillage at different times, belonging to the agricultural soil preparation tillage technology. In autumn, ridge-tillage and stubble ploughing operation are carried out on ridge culture land where straws are returned after being smashed; in summer, the furrowing and sub-soiling operation is carried during the seedling stage of the crops. The tillage is scientific and rational in process, is simple and convenient to operate, improves the soil moisture, reduces the power consumption of soil preparation and is beneficial to improving the per unit area yield of the crops.

Description

technical field [0001] The invention belongs to the agricultural land preparation and cultivation technology, and mainly relates to a subsoiling cultivation method for agricultural ridge cultivation land. Background technique [0002] Northeast China is a typical agricultural ridge-farming area, where crops are ripened once a year, and ridge-farming is implemented for upland crops. The local traditional production method is to transport the whole crop straw out of the farmland or smash it back to the field after the crops are harvested in autumn, then plow the land and make ridges, and sow upland crops in the spring of the following year. After the corn stalks are returned to the field, if the land is fully plowed or subsoiled, a large amount of crop stalks will be mixed into the plow layer, which will affect the sowing and emergence of the next season's crops, resulting in uneven emergence of spring crops, which will lead to crop yield reduction. At the same time, due to t...

AI Technical Summary

Problems solved by technology

After the corn stalks are returned to the field, if the land is fully plowed or subsoiled, a large amount of crop stalks will be mixed into the plow layer, which will affect the sowing and emergence of the next season's crops, resulting in uneven emergence of spring crops, which will lead to crop yield reduction

At the same time, due to the relatively high hardness of the soil in autumn, especially after the furrows have been rolled for a planting season, the soil in the furrows is severely compacted. Deep loosening of the furrows in this season consumes a lot of power

On the other hand, the soil of the land that has undergone comprehensive rotary plowing and deep loosening is too loose, which is very unfavorable for maintaining soil moisture, and it is easy to run away moisture, resulting in drought in spring, and it is not good for tractors who perform seeding operations in spring. Tractors walk on loose soil. It is easy to slip, can not exert proper traction, affects the quality and efficiency of work, and increases fuel consumption

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