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Investigation of management practices to optimize cover crop-based weed mitigation in Canadian sweet corn production

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Title: Investigation of management practices to optimize cover crop-based weed mitigation in Canadian sweet corn production
Author: Brackenridge, Hayley
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Nurse, RobertTardif, Francois
Abstract: Fall sown cereal rye (Secale cereale L.) has gained popularity as a roller crimped cover crop due to its weed-suppressive capabilities, but management recommendations are needed to promote adoption in Canadian sweet corn production. Field trials were conducted to investigate the effect of rye cultivar, seeding rate, and roller crimping direction on weed control and sweet corn yield to determine best management practices. In the first trial, two rye cultivars (early vs. standard maturity) were compared at three seeding rates (150, 300, and 600 seeds m-2). In the second trial, rye planting directions (North-South vs. East-West) and roller crimping directions (parallel vs. perpendicular) were tested. Weed control and sweet corn yield were highest in the standard cultivar sown at 300 to 600 seeds m-2 and in parallel roller crimping for either rye planting direction; however, supplemental weed control measures should be investigated to reduce yield loss from uncontrolled weeds.
URI: https://hdl.handle.net/10214/26678
Date: 2022-01
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