Nitrogen Requirement for Hybrid (43Y92) and OP (Stingray) canola in low rainfall

Authors: Therese McBeath¹, Bill Davoren¹, Willie Shoobridge¹, Andrew Ware², Michael Moodie³

¹CSIRO Agriculture & Food Waite Campus, ²SARDI and EP Ag Research, ³Mallee Sustainable Farming and Frontier Farming Systems

Funded By: GRDC CSP00187

Project Title: Optimised Canola Profitability project

Key Messages

• Hybrid canola (43Y92 (cl)) consistently produced 20-30% more grain yield than open pollinated (ATR Stingray) canola across key Mallee soil types at Karoonda in 2018.
• Given the decile 1 season, yields were substantial and ranged from 0.35-1.16 t/ha with yields of more than 0.9 t/ha achieved on all soil types.
• Hybrid canola appeared to have a lower fertiliser N requirement as it produced significantly more grain than open pollinated canola at each level of N input.