SynthesisScientific reports2026
Meta-analysis of the effects of relay and double-cropping systems on weed control and crop production in arable lands.
Synthesis in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
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Abstract
Relay and double cropping offer a pathway for ecological intensification by improving weed suppression and maintaining crop production. Although numerous studies have examined the effects of relay and double cropping on crop yield and weed management, a comprehensive synthesis is needed to summarize the overall impact. This research presents a meta-analysis investigating the effects of relay and double cropping on weed control traits and crop production outcomes. A total 49 international articles reporting relevant data were selected and analyzed. Both systems significantly suppressed weeds. Specifically, the relay cropping system reduced weed biomass by 78% and density by 64%, while the double cropping system led to reductions of 95% in biomass and 66% in density across diverse environmental conditions. While double cropping was more effective at reducing weed biomass, both systems had a non-significant impact on weed species richness. Ultimately, the choice of system involves a trade-off, as the superior weed suppression of double cropping came at the cost of a significant reduction in crop production (yield), whereas relay cropping did not significantly impact yield. Future research should refine relay cropping systems through site-specific management and crop breeding to optimize their role in sustainable agriculture.
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