00408nam a2200133Ia 4500 220204s9999 xx 000 0 und d 631.461:573.6 DAD Biotechnological approaches in soil microorganisms for sustainable crop production Jodhpur Scientific Publishers 1997 Biofertilizer Nitrogen fixation Dadarwal, K R BK 41160 41160 0 0 0 0 MAIN MAIN 2021-12-16 750.00 0 631.461:573.6 DAD 21452 2021-12-16 00:00:00 2022-02-14 BK