Suastegui (Agrarian Technial Institute of Castilla and Leon) describes programs for connecting water use and crop growth simulation tools with local farmers who can use the predictions to manage irrigation water. AGRIDEMA is the primary program discussed, and a pilot assessment of managing sugar beet irrigation in the Spanish northern plateau is presented. The haphazard grammar will require concerted dedication from the reader. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)