RESPONSE OF MAIZE PLANT TO INCULATION BY AZOTOBACTER CHROOCOCCUM BACTERIA ,TRICHODERMA HARZIANUM FUNGI AND NITROGEN FERTILIZER
Main Article Content
Abstract
Afactorial pot experiment was conducated by using (CRD) design on sandy loam soil , out as well as isolation classification purification of A.chroococcum Bacteria to study the effect of interaction between A.chroococcum bacteria and T.harzianum fungi and two levels of nitrogen fertilizer (50% and 100% ) on growth of maize plant . The results of classification showed that all the three isolate belong to A.chroococcum species ,the isolate (I3) was selected as local isolated and used as a biofertiltzer in pot experiment . The results showed that application of biofertilizer caused significantly increment in plant height , leaf area and dry weight compared with out addition of biofertilizer irrespective with application of nitrogen fertilizer . the highest number with the addition of duplicate biofertilizer caused significantly increment (57.37% ,119.38 % and 120.83% ) for plant height , dry weight and leaf area respectively compared with out addition of biofertilizer . The highest number with the addition of duplicate biofertilizer and with (50%) of nitrogen fertilizer caused significantly increased (85.18% , 146.26% and 222.22% ) for plant height ,leaf area and dry weight respectively The interaction between A.chroococcum bacteria and T.harzianum fungi were positively ,while addition (100%)of nitrogen fertilizer caused no significant increased in plant height and dry weight campard with adding biofertilizer.