No-tillage cultivation method of fully biodegradable mulch film and annual straw mulching of dryland wheat

Abstract

The invention discloses a no-tillage cultivation method for fully biodegradable mulch film and annual straw covering of dryland wheat, and specifically belongs to the technical field of agricultural planting. For the first crop, fully biodegradable mulch was used for full-film covering soil hole planting, and the film was left behind for no-tillage. The residual film was covered with straw, and the next crop was sown in a timely manner; The residual film is turned over and pressed into the field, so that the straw and residual film can be completely degraded in the soil. Hole planting with full biodegradable mulch and soil covering the first crop can increase the yield of the first crop of wheat, and the dual mulching of residual film and straw during the fallow period and the second crop can not only meet the water demand of the second crop of wheat and ensure the stable yield of the second crop of wheat, but also The dual mulching of residual film and straw can effectively promote the degradation of residual film, and the measure of straw mulching can also increase the content of soil organic carbon and improve soil physical and chemical properties; Save money and increase efficiency.

Description

technical field [0001] The invention relates to a no-tillage cultivation method for fully biodegradable mulch film and annual straw mulching of dryland wheat, in particular to the technical field of agricultural planting. Background technique [0002] Hole-sowing no-tillage and multi-stubble planting technology in dry land with full-film-covered soil integrates technologies such as mulching to suppress steaming, film-surface sowing holes for rain collection, rainwater enrichment and superimposed utilization, film-retained multi-stubble no-tillage planting, etc. It is extremely significant, and realizes no-tillage and multi-stubble planting, which greatly reduces production costs. This technology is of great significance to improving the efficiency of dryland wheat production and ensuring regional food security. However, under the existing technology mode, the use of polyethylene film for no-tillage and multi-stubble planting will cause the film to be severely broken and mor...

AI Technical Summary

Problems solved by technology

However, the mulch film used in the existing technology mode is polyethylene mulch film, which needs to be removed from the farmland eventually, and the mulch film is severely damaged after long-term no-tillage, and the cost of picking up is high, which will cause residual film pollution; It will cause a decline in soil organic carbon; in addition, long-term no-tillage under the current mode will cause a series of problems such as increased soil bulk density and smaller porosity of the plow layer, which will affect the growth of crop roots and soil microbial activity

The above defects seriously limit the further development and large-scale application of no-tillage high-efficiency cultivation technology of film-mulched wheat in dry land