Dryland wheat full biodegrade mulching film and straw annual mulching non-tillage cultivation method

Abstract

The invention discloses a dryland wheat full biodegrade mulching film and straw annual mulching non-tillage cultivation method, and relates to the technical field of agricultural planting. The methodcomprises the steps that a full biodegrade mulching film is selected for performing full film earthing hole sowing on the first stubble, after-wheat film reserving on-tillage is performed, straw mulching is performed on a residual film, next-stubble crops are sown in good time; after second-stubble wheat is harvested, mulching straw and degradable residual films which are not thoroughly degraded are turned and returned to the field, and the straw and the residual films are completely degraded in soil. Full biodegrade mulching film full-film earthing hole sowing is performed on the first stubble to achieve primary stubble wheat production increase, residual film and straw dual mulching is performed on the second stubble and the fallow period, the requirement of the second-stubble wheat forwater can be met, second-stubble wheat stable production is ensured, residual film degradation can be effectively promoted through residual film and straw dual mulching, and due to the straw mulchingfarmland measures, the soil organic carbon content can be increased, and the soil physical and chemical properties are improved; in addition, by adopting the full biodegrade mulching film, the residual film pickup cost is saved, and the cost is saved while the effectiveness is increased.

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