ABSTRACT Field experiments were conducted from April 2015 to September 2016 at the Royal Agricultural University, UK to explore the impact of drilling pattern and species mixtures on weed growth and forage yield. The bi-crops of spring field bean (Vicia faba) cv. Maris Bead and Fuego with spring wheat (Triticum aestivum) cv. Paragon were evaluated at four drilling patterns in a randomized complete block design with four replicates and compared against their respective sole crops. Weed DM was 59% higher in the sole cropping systems than the bi-cropping systems. The sole cropping systems outperformed the bi-cropping systems for wheat (in 2016 only) and for bean forage DM yield. However, the bi-cropping systems produced higher total forage DM yields than sole cropping systems. Weed DM was higher in broadcast than in alternate rows systems. Bean forage DM was 74% higher in treatments with alternate rows than in the broadcast treatment. Wheat forage DM was not affected by the drilling patterns. Maris Bead had higher forage DM than Fuego (in 2016 only). It was concluded that bi-cropping can increase land productivity per unit area over sole cropping, whilst improving forage DM yield and providing low cost integrated weed management. Alternate row drilling can improve bi-cropping productivity over the broadcast practice. Abbreviations: LER - Land Equivalent Ratio

中文翻译：

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双作小麦（Triticum aestivum）和豆类（Vicia faba）对牧草产量和杂草竞争的影响

摘要 田间试验于 2015 年 4 月至 2016 年 9 月在英国皇家农业大学进行，以探索钻孔模式和物种混合物对杂草生长和牧草产量的影响。春田豆 (Vicia faba) cv 的双作。Maris Bead 和 Fuego 与春小麦 (Triticum aestivum) cv。Paragon 在随机完整区块设计中的四种钻孔模式下进行了评估，其中有四个重复，并与各自的单一作物进行比较。在单一种植系统中，杂草 DM 比双作系统高 59%。在小麦（仅 2016 年）和豆类饲料干物质产量方面，单一种植系统的表现优于双作系统。然而，双作系统比单作系统产生更高的总牧草干物质产量。杂草 DM 在广播中高于在交替行系统中。豆草干物质在交替行处理中比在广播处理中高 74%。小麦草料 DM 不受钻孔模式的影响。Maris Bead 的草料干物质含量高于 Fuego（仅限 2016 年）。得出的结论是，与单作相比，双作可以提高单位面积的土地生产力，同时提高饲料干物质产量并提供低成本的综合杂草管理。交替行钻可以提高双播的生产力，而不是广播实践。缩写：LER - 土地当量比率 同时提高饲料干物质产量并提供低成本的综合杂草管理。交替行钻可以提高双播的生产力，而不是广播实践。缩写：LER - 土地当量比率 同时提高饲料干物质产量并提供低成本的综合杂草管理。交替行钻可以提高双播的生产力，而不是广播实践。缩写：LER - 土地当量比率