Influence of biological inoculant of Paenibacillus polymyxa on available phosphorous from phosphorous rock on growth and yield of Zea mays L


A field experiment was carried out in 2015-2016 Atumn growing season at research station, Agric., College, Al-Muthana university. Isolation and diagnoztion of three isolates from paenibacillus polymyxa from three varying regions in south of Iraq, which were used as single bacterial inoculant or interaction with three levels of phosphorous rock on growth and yield of Zea mays L. cultivar 2018. According biochemistry tests, isolated bacteria seems to be belonged to P. polymyxa. Bacterial inoculated treatments showed superiorityies over control treatment. as well as on  interaction treatmentsInoculant with 80 Kg P Hacter-1 treatment was superior on the all other treatments in high plant , dry weight, total yield ,  %P in vegetativeparts, p content in soil and number of bacteria in soil by 203.59cm, 183.84gm, 6355.33kg hacter-1, 0.311%, 16.53mg kg-1, 0.117*106 Cfu gm soil-1, respectively. The percentage of increase recorded were 10.49, 21.59, 60.88, 152.58, 200.44, 180.70, respectively, as compared to treatments no inoculantion and phosphorous rock application

A. K. Jbar, Agric. College, Al-Muthanna Univ


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