Researchers used a dual crop coefficient approach to estimate how much water summer sesame crops need in South Gujarat. They tested this method in field experiments with drip and border irrigation systems. The model they used, called SIMDualKc, accurately estimated water needs for both systems. The crop coefficients calculated by SIMDualKc showed lower water requirements at the beginning and end of the crop's growth cycle compared to traditional methods. Using SIMDualKc for drip irrigation scheduling saved more water compared to border irrigation. This model is recommended for accurately estimating water needs for summer sesame crops in South Gujarat.