Abstract
Effect of Residue Management, Row Spacing, and Seeding Rate on Winter Canola Establishment, Winter Survival, and Yield
Highlights
Winter survival of canola (Brassica napus L.) is a challenge for producers using highresidue, no-tillage, or reduced tillage systems
The 20-in. row spacing resulted in greater plant density than the 30-in. row spacing at a given seeding rate and averaged across seeding rates in three of five locations
At one location (Stafford 2015) the AGCO treatments resulted in fall plant densities comparable to those achieved with cooperator practice
Summary
Winter survival of canola (Brassica napus L.) is a challenge for producers using highresidue, no-tillage, or reduced-tillage systems. An innovative residue management system being developed by AGCO Corporation was compared to cooperating canola producers’ residue management and planting methods in wheat stubble. This series of on-farm experiments was conducted in 2014-2015 and 2015-2016 at ten locations in central and south-central Kansas. The producer treatment at each location included row spacing, seeding rate, and residue management practices preferred by that producer. Yields were not affected by residue management, row spacing, or seeding rate at two of the five locations, including the location with yields surpassing 60 bu/a. At the other three locations, yields with the AGCO residue management system equaled or exceeded yields obtained with cooperator practices that typically included much greater seeding rates. Yields seldom responded to seeding rate, but when they did, yields tended to increase as seeding rate decreased
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