A crop yield prediction method considering water and salt stress

A method for predict crop yield comprehensively considering wat and salt stress The invention relates to the technical field of agricultural water and soil engineering, which is used for predicting the actual yield of a certain kind of crop. The method comprises the following steps: obtaining the water absorption distribution of the root system and the transpiration evapotranspiration of the aboveground part in each day of the growth period of the crop in the farmland to be predicted; Gets the minimum soil water potential corresponding to the category, maximum soil water potential, the value of stress compensation coefficient and relative yield coefficient, the predicted total stress index in the farmland to be predicted is obtained, Then, the predicted relative yield ratio of crops in thefarmland to be predicted is obtained, and the predicted actual yield of crops in the farmland to be predicted is obtained by multiplying the ideal yield ratio and the predicted relative yield ratio,so as to uniformly conside