The following crop water use report for the Suisun Valley was recorded on July 19, 2010.

Total reference ET since January 1st is 26.0 inches.

This is 94% of normal.

ET is the amount of water that a crop uses.

The following ET values are given in inches per day. The given months refer to the approximate planting of annuals and approximate leaf-out of trees and vines.

Established grass, pasture, and alfalfa: 0.23

Early-March tomatoes: 0.26

Early-April tomatoes: 0.26

Early-May tomatoes: 0.27

Sugar beets: 0.20

March corn: 0.27

May corn: 0.27

March trees: 0.24

April trees: 0.24

Grapes: 0.19

Beans: 0.26

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These daily ET values represent the inches of water that each crop uses in one day. You can use this value to estimate when your crop will start to experience moisture stress.

The number of days till stress is equal to the inches of available soil moisture divided by the ET value.

If your crop was not mentioned, or if you would like more information on irrigation scheduling or on estimating available soil moisture, please contact the Solano Irrigation District (707-448-6847)