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首页> 外文期刊>Renewable Agriculture and Food Systems >Brassica cover cropping for weed management: A review
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Brassica cover cropping for weed management: A review

机译：甘蓝覆盖作物杂草处理研究综述

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Cover crops offer many benefits for farmers seeking to reduce their reliance on external inputs. These include maintaining and improving soil quality, preventing erosion and, in some cases, allelopathic weed control. Allelopathic potential has been well documented for cover crops such as cereal rye (Secale cereale L.), hairy vetch (Vicia villosa Roth) and red clover (Trifolium pratense L.). Much less is known about other potentially allelopathic cover crops, including certain brassicaceous species that are normally grown for their oilseeds, including canola and rapeseed (both Brassica napus L.) and mustards (e.g., Sinapis alba L., white and yellow mustard). Because of their potential contribution to pest management, there is increased interest in growing brassicas, both as cover crops and as seed crops harvested for oil production. In this review, we first discuss unique attributes of brassicas that make them promising options for pest management, as well as generally beneficial cover crops. Next,we review the literature from controlled settings on the effects of brassicas, brassica extracts and isolated compounds contained therein on seed germination, seedling emergence and establishment, and seedling growth—effects that, combined or taken alone, could contribute to reducing the density and vigor of weed communities in the field. Field studies examining the detrimental effects of brassicas in rotation with other crops, as well as examining the effects of brassica cover crops on weed dynamics in subsequent crops, also are reviewed. Finally, we review some important agronomic considerations about the use of brassica cover crops.
机译：有盖作物为寻求减少对外部投入的依赖的农民提供了许多好处。这些措施包括保持和改善土壤质量，防止侵蚀以及在某些情况下控制化感杂草。覆盖谷物如谷类黑麦（Secale graine L.），山etch菜（Vicia villosa Roth）和红三叶草（Trifolium pratense L.）的化感潜力已得到充分证明。人们对其他潜在的化感覆盖作物，包括通常以油籽种植的某些芸苔科物种知之甚少，包括油菜籽和油菜籽（均为甘蓝型油菜）和芥菜（例如，芥菜，白芥末和黄芥末）。由于它们对病虫害管理的潜在贡献，人们越来越希望种植芸苔类作物，无论是作为覆盖作物还是作为石油生产而收获的种子作物。在这篇综述中，我们首先讨论了芸苔属植物的独特属性，这些属性使它们成为有前景的害虫管理选择以及普遍有益的有盖作物。接下来，我们从受控环境中回顾了芸苔属，芸苔属提取物和其中所含化合物对种子发芽，幼苗出苗和定植以及幼苗生长的影响，这些影响结合或单独使用，可能有助于降低密度和田间杂草群落的活力。还回顾了田间研究，研究了芸苔属与其他农作物轮作的有害影响，以及芸苔覆盖作物对后续农作物杂草动态的影响。最后，我们回顾了有关芸苔覆盖作物使用的一些重要农学方面的考虑。

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