Crop residue retention could affect the emergence and biomass of weeds in different ways. A summer and winter pot study was conducted to evaluate the effect of different amounts of sorghum and wheat residue on the emergence and biomass of 12 summer and winter Australian weeds. The equivalent amount of sorghum residue to 0, 1, 2, 4 and 6 t/ha was used in the summer study and winter weed seeds were covered with wheat residue equivalent to the amount of 0, 1, 2, 4 and 8 t/ha in the winter study. The emergence and biomass of Amaranthus retroflexus and Echinochloa colona was not affected by sorghum residue treatment. For other summer weeds, the use of the 6 t/ha sorghum residue treatment resulted in 59–94% reductions in biomass compared to no-sorghum residue retention. Similarly, the application of 8 t/ha wheat residue in the winter study resulted in a reduced biomass of 15–100% compared to no-crop residue treatment. The results demonstrated the high potential of using crop residues in eco-friendly weed management strategies, such as harvest weed seed control tactics.

中文翻译：

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作物残留物保留抑制冬季和夏季澳大利亚杂草的幼苗出苗和生物量

作物残留物保留可能以不同方式影响杂草的出现和生物量。进行了夏季和冬季盆栽研究，以评估不同数量的高粱和小麦残留物对 12 种夏季和冬季澳大利亚杂草的出现和生物量的影响。在夏季研究中使用了相当于 0、1、2、4 和 6 吨/公顷的高粱残留物，在冬季的杂草种子上覆盖相当于 0、1、2、4 和 8 吨/公顷的小麦残留物。哈在冬季学习。Amaranthus retroflexus和Echinochloa colona的出现和生物量不受高粱渣处理的影响。对于其他夏季杂草，与无高粱残留物相比，使用 6 吨/公顷高粱残留物处理导致生物量减少 59-94%。相似地，与无作物残留处理相比，在冬季研究中施用 8 吨/公顷小麦残留物导致生物量减少 15-100%。结果表明，在生态友好的杂草管理策略（例如收获杂草种子控制策略）中使用作物残留物的潜力很大。