Download Soil texture and available water

The effect of soil texture on available water
Field capacity refers to the amount of water left in the soil after the excess has drained due to gravity. At field capacity, the soil
will contain capillary water, held by the cohesive forces of water molecules, and available to plants.
The wilting point refers to the amount of water left in the soil after the capillary water has been removed by transpiration and/or
evaporation. There remains a thin hygroscopic layer of water that is unavailable. Sand holds the least amount of total water but available water can be almost as restricted in clay because hygroscopic water is held
between the layers of the clay molecules.