We developed an Excel-based computational template Extension educators can use to assist clientele with scheduling irrigation for efficient use of water. With the template, the user applies the dual crop coefficient method to calculate evaporation and transpiration rates separately, with the result being more accurate soil water tracking as compared to what occurs when a single crop coefficient is used. Crop water needs can be conveniently calculated on the basis of soil characteristics, crop growth stages, and weather information. Application examples demonstrate that the amount and frequency of irrigation should be adjusted according to soil texture. The template and application examples are available to Extension professionals as electronic supplementary material.
Her, Y., Morgan, K. T., & Wang, Q. (2019). Excel-Based Computational Template for Irrigation Scheduling Using Dual Crop Coefficients. The Journal of Extension, 57(1), Article 3. https://tigerprints.clemson.edu/joe/vol57/iss1/3