[1]
M.M., A., M.A, H., .M.A, M. and Elhassan4G. 2016. In vitro study the Characterization of Azotobacter spp. isolates from Sudanese soils. IJRDO-Journal of Agriculture and Research (ISSN: 2455-7668). 2, 6 (Jun. 2016), 47-56. DOI:https://doi.org/10.53555/ar.v2i6.76.