Response of promising line N8119 of wheat to application of phosphate bio-fertilizer

In order to determine the effects of applied phosphate bio-fertilizer on yield and morphological traits of wheat، a research was conducted in Sari Agricultural Sciences and Natural Resources University during 2008-2010. A factorial experiment was performed based on randomized complete block design with four replications. The first factor consists of two levels of phosphate bio-fertilizer (0 and 100 g ha-1) and the second factor was three levels of phosphate fertilizer (0، 60 and 90 kg ha-1). Results showed that bio-fertilizer increased significantly grain yield، spike/m2، seed /spike، spike length، 1000 seeds weight and harvest index، however، had no significant effect on plant height. There was no significant difference between 60 and 90 kg ha-1 phosphate fertilizer treatments obtained with 100 g ha-1 bio-fertilizer (528. 40 and 532. 95 kg ha-1 respectively) in term of total grain yield. Therefore، application of 60 kg ha-1 phosphate fertilizer with bio-fertilizer instead of conventionally using phosphate fertilizer in Mazandaran (90 kg ha-1)، not only save nearly 30 kg ha-1 phosphate fertilizer، but also prevent soil and water pollutions.