Peanut/cotton equal-width intercropping alternate rotation planting method in saline-alkali land

Abstract

The invention belongs to the technical field of crop intercropping rotation, and discloses a peanut / cotton equal-width intercropping alternate rotation planting method in saline-alkali land. The method comprises the following steps: analyzing the effects of peanut / cotton intercropping rotation on the growth, yield and economic benefits of peanuts and cotton; measuring the chlorophyll and componentcontent, photosynthetic rate and chlorophyll fluorescence characteristics of cotton and peanut functional leaves, and measuring agronomic traits, yield and yield composition factors of the peanuts and the cotton; calculating the economic benefits and land equivalent ratio of the peanut / cotton intercropping rotation; analyzing the diversity change characteristics of rhizosphere soil microorganismflora of the peanuts and the cotton under the conditions of the peanut / cotton intercropping rotation; and analyzing root exudates, soil enzyme activity and soil water and salt transport change characteristics under the conditions of the peanut / cotton intercropping rotation. The method clarifies the soil micro-ecological mechanism of the peanut / cotton equal-width intercropping rotation planting mode in the saline-alkali land for alleviating continuous cropping obstacles, and provides theoretical basis and technical support for the large-area application and promotion of the mode in the saline-alkali land.

Description

technical field [0001] The invention belongs to the technical field of crop intercropping and rotation, and in particular relates to a peanut / cotton equal-width intercropping and alternating crop rotation planting method for alleviating the soil micro-ecology of continuous cropping obstacles. Background technique [0002] Currently, the closest prior art: [0003] Peanut and cotton have strong salt tolerance and are suitable for promotion and planting in saline-alkali land. However, due to continuous cropping for several years, soil productivity continued to decline, and severe pests and diseases restricted the production of peanuts and cotton. Therefore, promoting the peanut / cotton intercropping rotation planting mode is an important way to achieve the combination of land use and land cultivation, reduce the input of fertilizers and pesticides, effectively alleviate the conflict between grain, cotton and oil crops, and realize the sustainable development of saline-alkali l...

AI Technical Summary

Problems solved by technology

[0017] (1) Existing studies have not carried out studies on peanut / cotton intercropping under saline-alkali conditions

[0018] (2) The existing technology does not have a reasonable research on the regulation of soil microbial diversity and community structure by peanut / cotton intercropping technology; research on soil micro-ecological mechanisms such as root exudates, soil enzyme activity, and soil water-salt migration

[0019] (3) The existing technology does not combine the physiological mechanism of intercropping crops, farmland ecological mechanism and soil microecological mechanism to carry out research on overcoming continuous cropping obstacles in the research of intercropping

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