Estimation of Soil Moisture Deficit using soil moisture and soil hydraulic properties
Soil moisture deficit (SMD) represents the amount of water required to raise the soil-water content of the crop root zone to field capacity. The soil moisture estimated from the field measurements can be converted into SMD, if the field capacity (FC) is available for the soil under consideration. In this study, soil texture and organic matter thematic layers are developed by using the extensive field samplings of the Varanasi district and used for the estimation of SMD by using the hand held in-situ soil moisture sensors. The analysis indicates that the technique proposed in this study is promising and could be used for large-scale applications in conjunction with satellite estimated soil moisture.