Response of Winter Canola to Nitrogen Rates - Ohio.

Winter canola requires adequate N for optimal yield. It is a new crop for Ohio and the proper N rate is unknown. The variety ‘Wichita' was established near Custar and/or Fremont, OH from 2003 – 2004 and 2006 – 2009.  All plots received 22.4 – 33.6 kg ha^-1 of fall N. Except for 2003, a N rate curve with eight rates was established from 0 to156.8 kg ha^-1 at increments of 22.4 kg ha^-1.  In 2003, a curve with 5 rates was established from 0 to 134.4 kg ha^-1 at increments of 33.6 kg ha^-1. Experimental design was a completely randomized block replicated four times. Optimum N rate was calculated for each year.