Irrigation Scheduling and Determination of Irrigation Water Requirement of Paddy Rice With Drip Irrigation Using Tagem-Suet Model

Abstract

Nowadays, as the pressure of drought on water resources increases, new approaches regarding paddy rice irrigation, which has the highest water consumption rate, need to be taken into consideration.One of these approaches is the drip irrigation system, which saves significant amount of water in paddy rice irrigation.. In this study, 4 different irrigation subjects (25%, 50%, 75% and 100%) in drip irrigation system for paddy rice in Edirne were examined in TAGEM-SUET. As a result of the study, the evapotranspiration of paddy rice during the production season was calculated as 692.83 mm, the amount of irrigation water was calculated as 162-486 mm in drip irrigation. In the model, it was measured that the optimum drip irrigation program would not cause a decrease in efficiency despite saving 38% of water compared to the ponding method. It is thought that TAGEM-Suet can be a good tool for irrigation planning and management of paddy rice, depending on climatic conditions.