Nitrogen and Sulfur Fertility Effect On Canola (Brassica napus) Protein Content and Fatty Acid Profile.

A six site-year experiment (3 growing seasons 2007-20010 and 2 locations-Davenport, WA and Pullman, WA) was conducted in the dryland (annual precipitation:  358 – 534 mm) region of eastern Washington State to evaluate nitrogen (N) and sulfur (S) fertility requirements for winter and spring canola (Brassica napus).  For each site-year, protein and fatty acid profile responses to N and S rate  were evaluated.  In each site-year, winter canola was seeded and in all but one site-year, winter canola suffered failure due to winter kill and spring canola was reseeded.  Five N ((NH₂)₂CO) rates and two S (NH₄SO₄) rates were applied.  Treatmentment differences in protein and fatty acid profile will be determined statistically by analysis of variance.