Snyder, University of California, Land, Air and Water Resources, Davis, CA
Department of Water Resources, Div. of Planning, Sacramento, CA
Bali, University of California, Cooperative Extension, Imperial County,
Department of Water Resources, Office of Efficient Water Use, Sacramento, CA
Copyright © 2000. Regents of the University of California, All rights reserved.
written - December 2000
Revised – April
Basic Irrigation Scheduling (BIS) application was written using MS Excel to
help people plan irrigation management of crops. The BIS program can be downloaded by clicking
Manual in English
Application Program (English units)
BIS Application Program (metric
BISms.pdf BIS Manual en Español
Programa en Español (sistema métrico)
estimates annual trends of ETo
using daily mean climate data by month, and it contains the most up-to-date
crop coefficient information available in California.
The BIS application aids with the calculation of daily crop coefficient
(Kc) values and crop
it helps to identify yield thresholds and management allowable depletions, and
it provides a check book approach for determining irrigation timing and amount.