The effect of bio-fertilizer (Phosphate Barvar2) on the yield and yield components of bread wheat and durum in Ahvaz region

In order to evaluate the effectiveness of phosphorus biological fertilizers (Barvar2) and triple super phosphate fertilizer amounts on the yield and yield components of bread wheat and durum, a split-split plot experiment within randomized completely block design with four replications in December2009 in research farm of Agriculture and Natural Resources University of Ramin in Khuzestan was carried out. The main plots were chemical fertilizer triple super phosphate (zero, 50% and 100% of phosphate fertilizers), subplots were bio-fertilizer barvar2 (control, by basal application and top dressing ) and sub-subplots were wheat cultivars (Chamran and Behrang).Results showed that 50% of phosphorus with the barvar2 base led to a No. 349.54 for spike number, grain yield 3309.5kg and10932.1 kg of biomass to ensure that this amount 100% of the recommended intake of phosphorus fertilizers match. Grain weight and harvest index attributes that have not been affected by the biological fertilizer. The results of this study showed that the use of phosphorus biological fertilizer (barvar2) can be used as a substitute for a portion of the phosphorus fertilizer, without a decrease in yield occurs.