Study of the Wet Bulb in Stratified Soils (Sand-Covered Soil) in Intensive Greenhouse Agriculture under Drip Irrigation by Calibrating the Hydrus-3D Model

The development of the wet bulb under drip irrigation in sand-covered soils presents a different behavior compared to one observed homogeneous soils. Moreover, presence very active crop imposes series variations that have not been fully characterized. aim this work is present data acquisition methodology calibrate and validate Hydrus-3D model order safely define evolution moisture bulbs generated stratified “sanded” characteristic greenhouses with intensive pepper irrigation. procedure for collecting processing has defined. Soil permeability; retention curve, texture, bulk density measured experimentally each material. It found inclusion previous day simulation improves predictions soil distribution. In less gravel, lower average stress more distribution were observed. proved can reproduce sand covered greenhouse growing conditions, it possible verify are adequate what field. view results, could be used establish future strategies or locate optimal placement point tensiometers control sandy agriculture.