Studies On Relationship Between Nitrogen Fixers Micro-organisms And Root And Stalk- Rot Fungi Of Maize

The present work was carried out to study the relationship between nitrogne fixing micro-organisms specialy non symbiotic nitrogen fixers bacteria ( NSNFB ) ( Azotobacter chroococcum Beijernick ) and root and stalk-rot fungi of maize . The pathogennic capabilities of the isolated fungi was also studied . Also the effect of some factors ( organic matter , salinity .PH values , soil types and moisture ) on the total counts of Azotobacter spp.were under taken . Nitrogen fixing efficiency of Azotobacter chroococcum and the method of bacterialization on root and stalk-rot disease incidence on maize were also studied .