P.W., M.- d’Ragga, & P.K., D. (2018). MORPHOLOGICAL, PHYSICAL AND CHEMICAL CHARACTERIZATION OF SOILS REPRESENTING THE CLAY PLAINS OF THE SUDAN. IJRDO-Journal of Agriculture and Research (ISSN: 2455-7668), 4(1), 16-34. https://doi.org/10.53555/ar.v4i1.1794