Top dressing nitrogen after 30% flowering provides very little if any economic benefit. But sulphur topdress may provide a benefit at this stage for deficient crops. Click here for more on identifying sulphur deficiency.
Consider the economic payoff before trying products that claim to rescue a crop that’s thin, flooded and oxygen depleted. For many of these crops, there is no sense investing more money in them. When trying a novel product, leave an untreated test strip through to yield and compare the results.
Now is the time to look at your flowering fields for missing pods and to start to examine causes. For a presentation on what causes blanks or flower abortion, watch the ACPC webinar with Murray Hartman, Alberta provincial oilseed specialist.