Nitrogen was the key nutrient limiting grain yield with significant yield responses at all sites and net returns of $120-200/ha when compared to nil nitrogen application.. Sulfur was evaluated at 1, 11, 21 and 41 kg S/ha at both sites... The results presented show the main effects of nitrogen or sulfur...
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Three years of trials by the Grains Orana Alliance (GOA) in the central-west region of New South Wales have consistently failed to demonstrate a canola yield or oil response to the addition of sulfur, which challenges the current recommended practice for canola... Given that most canola growers apply 20 kilograms of sulfur per hectare as a matter this is likely to be reducing growers' profitability.".. None of the trials responded to sulfur in oil or yield...