Timing of nitrogen in low rainfall for canola yield, iil and returns

To investigate the nitrogen rate and time of application response of canola varieties to yield and oil content of TT and RR hybrids in comparison with open-pollinated types toprovide growers in lower rainfall environments with guidelines on optimal nitrogen rates and times of application to maximise grain and oil yields, anddetermine if the management of hybrid canola nutrition is different to that of open pollinated varieties due to different responses to N rates and timing.

本研究旨在：一是对比TT、RR型杂交双低油菜（canola）品种与开放授粉类型品种对施氮量及施氮时期的响应差异，考察其对产量与含油率的影响；二是为低降水环境下的种植者提供最优施氮量与施氮时期的指导方案，以最大化籽粒与油脂产量；三是明确杂交双低油菜的养分管理是否因对施氮量和时期的响应差异，而与开放授粉品种存在不同。