Just like a sponge, soils with high organic matter (OM) can absorb and hold water during rainfall events and deliver it to plants during dry spells. Water is increasingly becoming the most limited natural resource supporting agriculture, but growers can improve their water storage capacity by raising their soil’s OM content. This 5-page fact sheet demonstrates how soil OM content can help increase water holding capacity of soils and describes the laboratory procedure to measure WHC. Written by Jehangir H. Bhadha, Jay M. Capasso, Raju Khatiwada, Stewart Swanson, and Christopher LaBorde, and published by the UF/IFAS Department of Soil and Water Sciences, October 2017.
http://edis.ifas.ufl.edu/SS661