No-tillage water-replenishing seeding method based on full-amount straw coverage condition

Abstract

The invention discloses a no-tillage water-replenishing seeding method based on a full-amount straw coverage condition, which comprises the following steps: in an aeolian sandy soil region or a severe wind erosion region with the rainfall capacity of below 450mm and after corns enter a full ripening stage, harvesting by adopting a large corn harvester, crushing corn straws, and uniformly spreading the crushed corn straws on the ground surface; and uniformly mixing rice husks and / or beet pulp with dry bacillus subtilis powder, and uniformly spreading the mixture on the corn straws. According to the method, the tillage and soil preparation cost in the corn planting process can be reduced, the emergence rate is increased, the application amount of pesticides such as herbicides is reduced, the corn yield is increased, the agricultural ecological environment is improved, sustainable utilization of black soil resources is promoted, and rapid development of agricultural modernization is promoted.

Description

technical field [0001] The invention relates to the technical field of corn sowing, in particular to a no-tillage water replenishment sowing method based on the condition of full straw coverage. Background technique [0002] At present, people have formed a general understanding of the role of straw returning to the field. In production, straw returning to the field is mainly divided into two forms: deep plowing and mulching. Among them, the technology of deep plowing and returning to the field is relatively mature, but it is only suitable for corn growth. In areas where the annual rainfall is greater than 450 mm, the thickness of the soil plow layer needs to be more than 30 cm. [0003] In areas with less than 450 mm of rainfall during the corn growth period and windy sandy soil areas in the northeastern and western parts of the country, mulching and returning to the field are the mainstay. In the mulching and returning to the field technology, problems such as straw draggi...

AI Technical Summary

Problems solved by technology

However, the inventors of the present application found in follow-up research that due to the full coverage of the straw and returning it to the field, it provided protection for diseases and insect pests, resulting in the aggravation of diseases and insect pests after corn sowing and affecting the yield. In addition, it also provided nutrients for the growth of weeds. As a result, it is difficult to further reduce the amount of herbicides

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