Delayed nitrogen improves osr yield potential

March 2008
Farmers Weekly;3/21/2008, p9
Trade Publication
The article discusses delayed nitrogen application, a method to keep oilseed rape crops green and build yields. The efficiency with which the crop uses sunlight to produce biomass at flowering can be maximized by achieving an optimum-sized canopy. The crop must take up 175kg N/ha by flowering to achieve the optimum green area index (GAI). Applying enough fertilizer to achieve a GAI of 3.5 is sufficient to achieve a yield potential of about 3.5t/ha.


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