This paper explores the effect of agroecological service crops (ASCs), i.e., crops included in the crop rotation for their ecosystem services, terminated with an in-line tillage roller crimper (ILRC) on weed community composition and their functional traits in comparison to a tilled control without ASC. A two-year study was performed in a long-term experiment with vegetables under organic management. Four different cereal crops were introduced as ASCs. Weed abundance and richness and the functional traits were assessed at three different stages, i.e., before and after ASC termination and before harvest of the following crop, melon. All the ASCs showed strong weed suppression, with few differences between the cereals tested. Weed communities with ASCs had later flowering onset and wider flowering span compared to the control, which positively affects weed dispersal and attraction of beneficial insects. However, weed communities with ASCs had higher values for traits related to competition (specific leaf area, seed weight and more perennials). A trade-off between weed suppression and selection of more competitive weed communities by the introduction of ASCs managed with the ILRC should be evaluated in the long-run. The use of the ILRC alternating with other soil management practices seems the more effective strategy to benefit from the minimal soil tillage while avoiding the selection of disservice-related traits in the weed community.

中文翻译：

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在地中海有机蔬菜系统中，杂草功能多样性受到农业生态服务作物和免耕措施的影响。

本文探讨了农业生态服务作物（ASC）的影响，即与生态系统服务相比，以轮作压路机（ILRC）终止的农作物轮作中为其生态系统服务所包括的农作物对杂草群落组成及其功能性状的影响。没有ASC的完全控制。在一项长期实验中，对有机管理下的蔬菜进行了为期两年的研究。引入了四种不同的谷物作物作为ASC。在三个不同的阶段，即ASC终止之前和之后以及收获以下农作物瓜之前，评估了杂草的丰度和丰富度以及功能性状。所有ASC均显示出较强的杂草抑制作用，所测试的谷物之间几乎没有差异。与对照相比，带有ASC的杂草群落开花开始较晚，开花跨度更大，对杂草的扩散和有益昆虫的吸引力产生积极影响。但是，具有ASC的杂草群落对于与竞争相关的性状具有更高的价值（特定叶面积，种子重量和多年生植物）。从长远来看，应评估在杂草抑制与选择更具竞争性的杂草群落之间的权衡，方法是引入由ILRC管理的ASC。将ILRC与其他土壤管理方法交替使用似乎是更有效的策略，可从最少的土壤耕作中受益，同时避免在杂草群落中选择与残障相关的性状。从长远来看，应评估在杂草抑制与选择更具竞争性的杂草群落之间的权衡，方法是引入由ILRC管理的ASC。与其他土壤管理实践交替使用ILRC似乎是更有效的策略，可从最少的土壤耕作中受益，同时避免在杂草群落中选择与残障相关的性状。从长远来看，应该评估通过引入由ILRC管理的ASC在抑制杂草和选择更具竞争力的杂草群落之间进行权衡。将ILRC与其他土壤管理方法交替使用似乎是更有效的策略，可从最少的土壤耕作中受益，同时避免在杂草群落中选择与残障相关的性状。