Isolation , enumeration and identification of diazotroph strains from acidic rainfed lowlying rice agro-ecosystems of South Assam (Barak Valley), India B. Deb Roy B. Deb G.D. Sharma 27.pdf Keywords Biofertilizer cfu Diazotroph Nitrogenase activity Rainfed lowland Year 2010 Volume Vol 2 Serial 27 Read more about Isolation , enumeration and identification of diazotroph strains from acidic rainfed lowlying rice agro-ecosystems of South Assam (Barak Valley), India