![]() ![]() To quantify effects on cash crops, we measured fall broccoli yield and biomass. To quantify cover crop quantity, quality, and weed suppression capacity, we measured cover crop and weed biomass, and biomass C:N. Our study included four site years, during which we investigated the effects of four cover crop species treatments, grown for 30 (short duration, SD) or 50 days (long duration, LD) alongside bare fertilized and unfertilized control treatments: buckwheat ( Fagopyrum esculentum) and sunn hemp ( Crotalaria juncea) monocultures, and biculture of chickling vetch ( Lathyrus sativus) or cowpea ( Vigna unguiculata) with sorghum-sudangrass (sudex) ( Sorghum bicolor x S. This project evaluated summer cover crops in the northern USA (MN and WI) for biomass accumulation, weed suppression, and contribution to fall cash crop yield. ![]() In northern climate vegetable systems, warm-season cover crops planted during short summer fallows could be a tool to build resilience via ecosystem service enhancement. Vegetable farming often includes spring and fall production, limiting establishment and productive potential of over-wintered cover crops that are more widely used in the USA. Diversification with cover crops may support increased resilience through soil organic matter (SOM) contributions and physical soil protection. ![]() Intensive production practices characterizing vegetable farming contribute to high productivity, but often at the expense of supporting and regulating ecosystem services. 4Cala Farms, LLC, Turtle Lake, WI, United States.3Department of Plant Pathology, University of Wisconsin - Madison, Madison, WI, United States.2Department of Horticultural Science, University of Minnesota, Saint Paul, MN, United States.1Department of Plant Sciences, University of California, Davis, Davis, CA, United States.Grossman 2 *, Anne Pfeiffer 3 and Rodrigo Cala 4 ![]()
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