Nitrogen and sulphur nutrition in canola at Caroona, Mullaley and Garah in 2013

Abstract

Key findings • There was no significant impact of varying sulphur rates at any of the three sites in 2013 on grain yield or oil content. • There were significant effects of nitrogen on grain yield at the Mullaley and Caroona sites only, however the responses were opposite, with improved yield with increasing N at Mullaley and a reduction at the Caroona site. • Increasing nitrogen rates reduced oil contents at all three trial sites, however the extent of the reduction varied. • Differences in the performance of the two canola varieties was not consistent across the three sites.