Comparisons of weed community, soil health and economic performance between wheat-maize and garlic-soybean rotation systems under different weed managements

PeerJ

article

Mahmud A. Muminov¹  Liyue Guo¹  Yanjie Song¹  Xian Gu¹  Yu Cen¹  Jie Meng¹  Gaoming Jiang¹ 

[1] State Key Laboratory of Vegetation and Environment Change, Institute of Botany, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Laboratories of Environmental Problems, Samarkand State University

关键词: Weed community;    Crop rotation;    Wheat;    Soybean;    Weed management;    Soil health;    Earthworms;    Eco-economic benefits;   

DOI  :  10.7717/peerj.4799

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

This study compared the impacts of different weed managements on weed community, soil health and economic performance between the wheat–maize (WM) and garlic–soybean (GS) rotations. A total of four treatments (H0T, tillage without herbicide; H0T0, without both herbicide and tillage; HT, both herbicide and tillage; HT0, herbicide without tillage) were designed for both rotations. A total of 16 weed species were recorded in the WM rotation, with life forms of 62% for annuals, 12% for annual + perennial and 20% for perennials. While in the GS rotation, there were 17 weed species, with 71% being annuals. When crop rotation changed from WM to GS, the topsoil layer seed bank (0–5 cm) decreased by 137%. GS rotation always had higher earthworm densities than that of WM under the same condition. Organic weed control (H0T, H0T0) from both WM and GS added more soil organic matters than the chemical methods (HT and HT0). Economically, up to 69% higher net profit had been achieved in the GS than WM for their organic products. This study provides an ecological basis to guide organic farming practices, especially for weed management in the future.

【 授权许可】

CC BY