ANBAR JOURNAL OF AGRICULTURAL SCIENCES

Abstract

A Study of potassium release kinetics in clay Loame soil was carried out in description release of potassium by treating soil with three levels of potassium Fertilizer (K2SO4) (0 , 75 and 150) kg K2O ha -1. and under the influence of four levels of saline water (2 , 4 , 6 and 8) ds m-1. The soil was collected from the field and it was in columns having 7.5 Cm diameter and 50 Cm length. Then the water was added and the leachate collected every three days for three month, Results of analysis of released potassium were subjected to mathematical equation and kinetics equation which were Zero order, first order, second order, diffusion and Elovich equations, The results showed that the first order equation In Ct = In Co – Kt in description release of potassium (mg L-1).