Effects of phosphate solubilizing bacteria and phosphorous levels on Rice (Oryza sativa L.)

摘要: In order to study the effects of phosphate solubilizing bacteria and rates phosphorous application on growth yield rice cultivar Shiroodi, an experiment was conducted in split plot format using randomized complete block design four replications city Neka northern Iran 2012. The experimental treatments included three (zero, 83, 165 Kg.h) form concentrated superphosphate as major factor, types biofertilizers (not inoculated with bacteria, Pseudomonas fluorescens, putida, simultaneously both fluorescens putida) minor factor. Results obtained indicated that mineral caused increase seed Shiroodi so maximum (630.251 g.m2) treatment applying Kg.h phosphorous. this accompanied number tillers (23.981), longest panicles (27.209 cm), largest seeds per panicle (116.30). It also observed inoculation improved components (22.46), highest percentage fertile (94.64), (26.29 (104.95) were when bacterial species. With respect yield, it found use a single species, compared employment two strains, greater yields 594.97 594.85 g.m2 putida or species used, respectively. regard Interaction also, (696.91 under interaction 83 Kg inoculating putida. This by (94.24%), long (26.09 considerable 1000 –seed weight (22.80 g).