Determination of Pseudomonas and Azospirillum Effects on Water productivity under low Irrigation condition in rice

ABSTRACT: This research conducted at the Institute of Rice Research in Mazandaran province (Amol Researching Farm ) in 2012, to determine the effects of Pseudomonas and Azospirillum on water productivity (Keshvari cultivar) as Randomzed in complete blocks rice with three replicants and Double split beds. The treatment of low Irrigation were as main factor at three levela(control, no irrigation at either panicle initiation or flowering stages) and nitrogen fertilizers (control or recommended dose as the rate of 100 kg.h-1 nitrogen, 50 and 25% of recommended dose) were assigned to the main plots and sub-plots, respectively, and the four PGPR treatments[control, Azospirillum brasilense (AZP), Pseudomonas fluorescence (PSD) and AZP+PSD]. THE resulte showed thet the usage of Different treatments of irrigation, N and biofertilizers have Meaning effect of water productivity and rain productivity. Irrigation cut in the early stage of panicle initiation with the usage of the combination of bacteria had the most yield obtained by cutting the tirrigatin in the filing of grain and the combination of both bacteria( 7540/33kg in hectar).

irrigation, yield, nitrogen, biofertilizer, rice