University of California

Field procedure helps calculate irrigation time for cracking clay soils


Mark E. Grismer
I. C. Tod

Authors Affiliations

Mark E. Grismer is Associate Professor of Water Science and Agricultural Engineering, Department of Land, Air and Water Resources, UC Davis; I. C. Tod is former Graduate Researcher, presently International Irrigation-Drainage Consultant, Cambridge, United Kingdom.

Publication Information

Hilgardia 48(4):33-36. DOI:10.3733/ca.v048n04p33. July 1994.

PDF of full article, Cite this article


Available soil moisture and low soil salinity are difficult to maintain in clay soils of arid regions due to the clay's low permeability. However, a simple procedure has been developed for estimating the duration of flood irrigation needed to saturate the cracked profile in these soils, while improving water conservation through limiting excess runoff. Using a worksheet, the irrigator makes a few measurements, then calculates how long to irrigate each border.

Grismer M, Tod I. 1994. Field procedure helps calculate irrigation time for cracking clay soils. Hilgardia 48(4):33-36. DOI:10.3733/ca.v048n04p33
Webmaster Email: sjosterman@ucanr.edu