Foliar application of nitrogen fixing bacteria increases growth and yield of canola grown under different nitrogen regimes

A field study was conducted to evaluate the effects of foliar application of nitrogen fixing bacteria on canola growth and yield. Azotobacter chroococcum Strain 5 and Azospirillum lipoferum Strain 21 as well as mixture of them were used on aerial parts of two canola cultivars under different nitrogen regimes. The experiment was laid out in a randomized complete block design with factorial arrangement in three replications. The results indicated that foliar application of bacteria significantly promoted almost all agronomic traits. These positive effects amplified when both species of bacteria were applied simultaneously on the plants.