Relationship between soil physical and chemical characteristics and ear-leaf concentration of P, K, Mg, Zn, Fe, Cu, Mn and relative yield of maize in soils derived from sedimentary rocks of South-Western Nigeria

cinc cobre composition copper crop yield cuivre fer feuille hierro hojas iron leaves magnesio magnesium manganese manganeso nigeria potasio potassium rendement des cultures rendimiento de cultivos soil chemicophysical properties zea mays zinc