M. Nafawaah, S. STUDY OF MINERALS THAT CONTROLLED CALCIUM,MAGNESIUM AND IRON SOLUBILITY AND THEIR RELATION SHIPS WITH SOIL CONSERVATION USING SOLUBILITY DIAGRAMS. Iraqi J. Agric. Sci. 2017, 48 (6 B). https://doi.org/10.36103/ijas.v48i6 B.276.