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根据扩散系数受温度影响即温度影响水粘度的特性，提出不同温度下磷扩散预测的修正Nye模型为D＝D0κfθ／b（式中к粘度校正系数，其值等于25℃与预测温度水粘度之比）。并采用低的水／土比及低浓度范围吸附等温线的斜率（b），用该模型可以相当准确地预测土壤中磷的扩散系数，常温下尤其如此;在土壤水低吸力范围内，预测值与实测值相差一般不超过2倍。
According to the temperature dependence of diffusion coefficient, the modified Nye model predicting phosphorus diffusion at different temperatures is proposed as D = D0κfθ / b (where k is the viscosity correction coefficient, which is equal to 25 ℃ and the predicted water viscosity ratio). And the slope of the adsorption isotherm with low water / soil ratio and low concentration range (b), the model can be used to predict the phosphorus diffusion coefficient in soil very accurately, especially at room temperature. In the range of low suction of soil water, Difference between the value and the measured value is generally not more than 2 times.