Changes in growth and yield components ofBrassica napusin response toAzotobacterinoculation at different rates of nitrogen application

Abstract

SUMMARYInoculation ofBrassica napuscv. ISN–129 withAzotobacter chroococcumfollowing the application of different amounts of nitrogen produced the greatest increase in seed yield and total dry matter when no external nitrogen had been applied. The yield increase in response to inoculation could be attributed to a greater number of primary branches and pods, associated with a higher leaf area index, particularly at the pod-filling stage, and a faster crop growth rate.