Evaluation of Nano biofertilizer efficiency on Agronomic traits of Spring Wheat at Different Sowing Date

In order to investigate the effect of seed sowing date and nano biofertilizer foliar application on some agronomic traits of spring wheat an experiment was conducted in 2010 growing season. The experimental design was a complete randomized block design arranged in factorial with three replications. The first factor was included two sowing date (middle of November and middle of December) and the second factor was included three nano biofertilizer levels (0, 4 and 8 litre ha -1 ). The results indicated that late seed sowing lead to significant reduction in agronomic traits such as tiller number, peduncle length, spike length, spike number, seed number, number of day until spike emergence, number of days until pollination and number of days until physiological maturity. By contrast, nano biofertilizer application increased spike length, spike number, seed number, seed number in spike, seed weight and number of days until physiological maturity. Generally nano biofertilizer application increased crop growth and improved yield and yield components through extending growing period.