Shallow-buried drip irrigation corn straw returning method

Abstract

The invention discloses a shallowly-buried drip irrigation corn straw returning method, relates to the technical field of corn straw returning, and solves the practical production problems of low comprehensive utilization rate of corn straws, common open-air burning phenomena and unreasonable types and traction power of matched machines and tools at present. According to the characteristics of local light, temperature, water and heat resources, three years are used as a planning cycle, and different corn straw returning modes are selected among years. In each planning unit, 1 / 3 of the corn straw is turned and buried to return to the field, 1 / 3 of the corn straw is mixed and mixed to return to the field, and 1 / 3 of the corn straw is covered by strips to return to the field. According to the method, multiple returning modes coexist, the contradiction that after autumn harvesting, the suitable ploughing period is short, and machine and tool operation is tense can be effectively relieved, meanwhile, disturbance damage to cultivated land is reduced, the cultivated land is protected, cost is saved, and efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of returning corn stalks to the field, in particular to a method for returning corn stalks to the field under shallow buried drip irrigation. Background technique [0002] Inner Mongolia is rich in resources and has made great contributions to ensuring national food security. However, after the large-scale and high-intensity reclamation of traditional farming methods, the content of soil organic matter has decreased year by year, and at the same time, a large amount of water and soil loss has been caused, resulting in the degradation of the quality of cultivated land resources. In addition, in the Inner Mongolia Autonomous Region, corn is widely planted and continuously cropped for many years. The annual biomass of corn stalks is large and redundant, the degree of comminution of straw is low, the decomposition of returning straw is slow, and returning straw to the field is not conducive to sowing and emergen...

AI Technical Summary

Problems solved by technology

In addition, the traditional straw returning often has incomplete straw decomposition and outstanding residue problems, which seriously affects the quality of sowing and emergence. The combination of drip irrigation and straw returning can promote straw decomposition, increase soil organic matter content, and improve soil physical and chemical properties

[0005] Therefore, in view of the technical bottlenecks in the process of straw mulching and returning to the field under the corn continuous cropping system, such as slow decomposition, poor seedling quality, low modernization of supporting agricultural machinery, and straw fertilizer and substrate utilization, it is necessary to break through the straw strip mulching under the corn continuous cropping system. , key technology of mixing and overturning and returning to the field, integrating stable yield, high-quality and low-biomass corn varieties suitable for returning to the field, mechanized straw crushing and full-scale returning farming technology, integrated water and fertilizer sowing technology, comprehensive nutrient management technology, and ecologically efficient prevention and control technology of diseases, insect pests and weeds , forming a key technical system for the full amount of corn stalks returned to the field under shallow burial drip irrigation, and the present invention proposes a shallow burial drip irrigation method for corn stalks to solve the above problems

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