Statewide Irrigation Systems Methods Surveys

Beginning in 1991, approximately every 10 years, a one-page irrigation survey form is mailed out to California growers to update records on what types of irrigation systems are being used in California. The 1991, 2001, and 2010 surveys were conducted by mailing questionnaires to growers who were randomly selected from a list of about 58,000 growers obtained from the California Department of Food and Agriculture (CDFA). All rice-only, non-irrigation, and livestock-only growers were excluded from the list.

 

During the 2001 and 2010 surveys, growers were also asked to identify the main county in which they farmed and the acreages they had planted to each of 20 possible crop categories along with the associated irrigation method within that county

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