Effects of Contour Reverse-Slope Terrace on the Microecology of Rhizosphere in Different Farming Systems

[Objective] To study the effect of contour reverse-slope terrace (CRT) on micro-ecological characteristics of rhizosphere soil in maize continuous cropping and maize-kidney bean rotation system. [Methods] With corn bean wheel as the study object and corn bean joint as the control, the crop root exud...

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Published inShui tu bao chi xue bao Vol. 38; no. 2; pp. 326 - 338
Main Authors LU Lianxin, WANG Keqin, LI Zhuyu, ZHAO Yangyi, WANG Shuaibing
Format Journal Article
LanguageChinese
Published Editorial Department of Journal of Soil and Water Conservation 01.04.2024
Subjects
contour reverse-slope terrace
maize-kidney bean rotation
root exudates
soil microbial
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Summary:[Objective] To study the effect of contour reverse-slope terrace (CRT) on micro-ecological characteristics of rhizosphere soil in maize continuous cropping and maize-kidney bean rotation system. [Methods] With corn bean wheel as the study object and corn bean joint as the control, the crop root exudates and soil microbial community composition and structural characteristics of were analysed by GC-MS and high-throughput sequencing technology by combining field in-situ monitoring and sampling with laboratory analysis. To study the effects of CRT on the species and content of root exudates and the composition and diversity of soil microbial community in maize continuous cropping and maize-kidney bean rotation. [Results] (1) The relative content change of root exudates was more prominent in CRT measures and more significant in crop rotation mode. (2) CRT2 treatment had a more significant effect on improving the quantity, richness and diversity of soil microbial community. (3) Under the interaction between root ex
ISSN:1009-2242
DOI:10.13870/j.cnki.stbcxb.2024.02.027