Dagash, Y. M., Farah, A., Yagoob, O., & A-Rahman, A.-G. (2015). Effect of Organic and Inorganic Fertilizer on the Physicochemical Properties of Some Rice Varieties under Sudan conditions. Journal of Progressive Research in Biology, 2(1), 50-59. Retrieved from http://scitecresearch.com/journals/index.php/jprb/article/view/226