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首页> 外文期刊>Crop Research >Ecophysiological effects of rye grass (Lolium rigidum L.) and wild oat (Avena ludoviciana L.) on yield and yield components in wheat (Triticum aestivum L.) cultivars
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Ecophysiological effects of rye grass (Lolium rigidum L.) and wild oat (Avena ludoviciana L.) on yield and yield components in wheat (Triticum aestivum L.) cultivars

机译：黑麦草（黑麦草）和野燕麦（Avena ludoviciana L.）对小麦（Triticum aestivum L.）品种产量和产量构成的生态生理影响

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Diversification and continuous cropping have largely been a consequence of soil moisture saved through the adoption of conservation tillage. Consequently, weed communities have changed and, in some cases, become resistant to commonly used herbicides, thus increasing the complexity of managing weeds. The main plots contain cutivars in two levels and sub-plots contain rye grass and wild oat with 0, 25 and 50 density. Utilizing the principle of varying selection pressure to keep rye grass and wild oat communities off balance has reduced weed densities, minimized crop yield losses, and inhibited adverse community changes towards difficult-to-control species. Varied selection pressure was best achieved with a diverse cropping system where crop seeding date, perennation, and species and herbicide mode of action and use pattern were inherently varied. Approaches to cropping systems, including balancing rotations between cereal and broadleaf crops, reducing herbicide inputs, organic production, and the use of cover crops and perennial forages, are discussed in light of potential systems-level benefits for weed management.
机译：多样化和连作在很大程度上是通过采用保护性耕作节省了土壤水分的结果。因此，杂草群落发生了变化，在某些情况下，它们对常用的除草剂产生了抗性，从而增加了杂草治理的复杂性。主样地包含两个级别的角皮，子样地包含密度为0、25和50的黑麦草和野燕麦。利用改变选择压力的原理使黑麦草和野生燕麦群落保持平衡，已降低了杂草密度，最大程度地减少了农作物的产量损失，并抑制了群落难于控制的不利变化。多样化的选择系统可以最好地实现各种选择压力，在这种系统中，种子播种日期，多年生植物，物种和除草剂的作用方式和使用方式都有内在的差异。根据杂草管理的潜在系统级收益，讨论了包括平衡谷物和阔叶作物轮作，减少除草剂投入，有机生产以及使用覆盖作物和多年生牧草在内的种植系统方法。

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