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首页> 美国卫生研究院文献>other >Comparisons of weed community soil health and economic performance between wheat-maize and garlic-soybean rotation systems under different weed managements
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Comparisons of weed community soil health and economic performance between wheat-maize and garlic-soybean rotation systems under different weed managements

机译：不同杂草处理对小麦-玉米和大蒜-大豆轮作系统杂草群落土壤健康和经济绩效的比较

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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.
机译：这项研究比较了小麦-玉米（WM）和大蒜-大豆（GS）轮作之间不同杂草处理对杂草群落，土壤健康和经济表现的影响。总共设计了两种处理方式（H0T，不使用除草剂的耕作； H0T0，既不使用除草剂和耕作； HT，既是除草剂和耕作； HT0，不使用除草剂）。在WM轮换中，总共记录了16种杂草物种，其中一年生生物形式为62％，一年生+多年生植物为12％，多年生植物为20％。在GS轮作中，有17种杂草，其中71％是一年生杂草。当轮作从WM改为GS时，表土层种子库（0-5 cm）减少了137％。在相同条件下，GS旋转总是比WM具有更高的earth密度。与化学方法（HT和HT0）相比，WM和GS的有机杂草控制（H0T，H0T0）添加的土壤有机质更多。从经济上讲，GS的有机产品实现的净利润比WM高69％。这项研究为指导有机耕作方法，特别是将来的杂草管理提供了生态学基础。

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