Legacy Effects of Contrasting Long-Term Integrated Weed Management Systems
نویسندگان
چکیده
To reduce reliance on herbicides and maintain crop productivity, integrated weed management (IWM) seeks to optimize synergies between diverse sets of practices combined at the cropping system scale. Nevertheless, data community response long-term implementation IWM remain scare. Here, we assessed effects four systems with contrasting objectives (S2: transition from superficial tillage conservation agriculture; S3: no-mechanical weeding; S4: mixed mechanical chemical S5: herbicide-free; all 6 year rotations) compared a conventional reference (S1: herbicide-based systematic plowing 3 rotation) taxonomic functional composition structure after 17 years continuous implementation. We examined legacy these uniformity trial consisting winter wheat managed uniformly across as well novel in situ seedbank approach involving tilled strips. found that resulting communities were more species rich (species richness 1.1 2.6 times greater) abundant (total density 3.3 25 than those observed system, differed term composition. In addition, that, when shared same species, germination patterns two thirds systems, highlighting selection pressures some exert weeds. showed analyzing germinable strips could provide comprehensive view be helpful developing foster agroecological management.
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ژورنال
عنوان ژورنال: Frontiers in agronomy
سال: 2022
ISSN: ['2673-3218']
DOI: https://doi.org/10.3389/fagro.2021.769992