Field Capacity Estimation Methods

Field capacity is the amount of water soil can hold after excess water has drained away. Estimation methods typically include the use of soil texture, which refers to the size of soil particles; measuring soil moisture directly with sensors; and applying empirical formulas that consider soil characteristics. A common approach involves taking soil samples, measuring how much water they retain after saturation, and calculating the field capacity based on that data. Understanding field capacity helps farmers and engineers manage irrigation and assess soil health effectively.