Changes in version 0.1.0 (2026-08-24) Initial CRAN release - Added temperature-based FAO-56 Penman-Monteith reference evapotranspiration estimation. - Added crop evapotranspiration and crop-water requirement calculations. - Added multilocation simulation for one selected crop. - Added USDA-SCS effective rainfall estimation. - Added crop-coefficient and root-depth development functions. - Added daily root-zone water balance and irrigation scheduling. - Added daily, dekadal, monthly, and seasonal output tables. - Added complete Excel and tab-delimited text-file exports. - Added workbook input validation. - Added a reproducible synthetic example dataset and workbook. - Added automated tests and package documentation.