Numerical Simulation of Soil Water Dynamics in Automated Drip Irrigated Okra Field Under Plastic Mulch

Abstract In India, drip irrigation with plastic mulch is a common practise for that conserves water. For the design and administration of regimes, thorough understanding distribution flow soil water in root zone required. It has been demonstrated simulation models are effective tools this purpose. work, an automated drip-irrigated Okra field seven treatments namely T1- Soil moisture-based to 100% FC, T2- 80% T3- 60% T4- Timer based CWR, T5- T6- CWR T7- Conventional at were utilised mimic temporal fluctuations content using numerical model HYDRUS- 2D. With help observed data, inverse solution was used optimise hydraulic parameters. The forecast optimal conditions. Root mean square error (RMSE) coefficient determination (R2) assess congruences between predictions data. RMSE ranging from 0.036 0.067 cm3 cm- 3, MAE 0.020 0.059, R2 0.848 0.959, findings showed fairly represented differences all sites treatments.