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Source: InCites
Abstract
Mulch from cover crops can effectively suppress weeds in organic corn (Zea mays L.) and soybean (Glycine max L.) as part of cover crop-based rotational no-till systems, but little is known about the feasibility of using mulch to suppress weeds in organic winter small grain crops. A field experiment was conducted in central NY, USA, to quantify winter wheat (Triticum aestivum L.) seedling emergence, weed and crop biomass production, and wheat grain yield across a gradient of mulch biomass. Winter wheat seedling density showed an asymptotic relationship with mulch biomass, with no effect at low rates and a gradual decrease from moderate to high rates of mulch. Selective suppression of weed biomass but not wheat biomass was observed, and wheat grain yield was not reduced at the highest level of mulch (9000 kg ha−1). Results indicate that organic winter wheat can be no-till planted in systems that use mulch for weed suppression. Future research should explore wheat tolerance to mulch under different conditions, and the potential of no-till planting wheat directly into rolled-crimped cover crops.
Details
Title
Winter Wheat (Triticum aestivum L.) Tolerance to Mulch
Creators
Matthew R Ryan - Cornell University
Sandra Wayman - Cornell University
Christopher J Pelzer - Cornell University
Caitlin A Peterson - Public Policy Institute of California
Uriel D Menalled - Cornell University
Terry J Rose - Southern Cross University
Publication Details
Plants, Vol.10(10), pp.1-9
Publisher
MDPI AG
Grant note
This research was supported by the USDA National Institute of Food and Agriculture, Organic Agriculture Research and Extension Initiative project 2020-51300-32183; the Cornell University Agricultural Experiment Station (Hatch funds) and Cornell Cooperative Extension (Smith Lever funds) project 1023863; and the New York State Environmental Protection Fund for the New York Soil Health Initiative, administered through the New York State Department of Agriculture and Markets Contract No. C00178GS-3000000. TR acknowledges the receipt of a fellowship from the OECD Co-operative Research Programme: Biological Resource Management for Sustainable Agricultural Systems in 2019.
School of Environment, Science and Engineering; Southern Cross Plant Science; Faculty of Science and Engineering; Science; Centre for Organics Research