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Cover crop system × termination date influence on shoot biomass production during Year 1 (2020–2021) growing season. Mix 1 (composition: annual ryegrass + faba bean + yellow sweetclover) and Mix 2 (composition: oat + faba bean + winter pea). Across cover crop system for each termination date (early or late), bars with the same lowercase letter are not different. Within each cover crop system, bars with the same uppercase letter are not different. Error bars are standard errors.
