Green manure application improves insect resistance of subsequent crops through the optimization of soil nutrients and rhizosphere microbiota
文献类型： 外文期刊
第一作者： Ma, Lin
作者： Ma, Lin;Wang, Daotong;Zhang, Lei;Ge, Yue;Cheng, Yunxia;Jiang, Xingfu;Ge, Yue;Liu, Yueqiu
作者机构： Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China;Beijing Univ Agr, Sch Landscape Architecture, Beijing 102206, Peoples R China
关键词： V. villosa application; Soil nutrient; rhizobacteria
期刊名称：ISCIENCE （ 2023影响因子：4.6； 五年影响因子：5.0 ）
年卷期： 2024 年 27 卷 7 期
收录情况： SCI
摘要： Green manure (GM) enhances organic agriculture by improving soil quality and microbiota, yet its effects on plant resistance are unclear. Investigating the GM crop hairy vetch-maize rotation system, a widely adopted GM practice in China, we aimed to determine maize resistance to fall armyworm (FAW), Spodoptera frugiperda (Smith), a major pest. Greenhouse experiments with three fertilization treatments (chemical fertilizer, GM, and a combination) revealed that GM applications significantly improved maize resistance to FAW, evidenced by reduced larval feeding preference and pupal weight. GM also enriched soil nutrients, beneficial rhizobacteria, and resistance-related compounds, such as salicylic acid, jasmonic acid, and 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), in maize. The results suggest that GM-amended soils and microbial communities may have an underestimated role in regulating host plant adaptation to pests by increasing plant resistance. This study can provide information for developing and implementing environmentally friendly and sustainable cropping systems with enhanced resistance to pests and diseases.
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