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Note updates to this data product are discontinued this data product summarizes irrigated farms in the united states based on usdas 2013 farm and ranch irrigation survey fris a previous release of this data productwhich summarized the farm structural characteristics for irrigated farms in the 17 western states based on usdas 2008 and 1998 farm and ranch irrigation surveysis agriculture is a major industry in the united states which is a net exporter of food as of the 2007 census of agriculture there were 22 million farms covering an area of 922 million acres 3730000 km 2 an average of 418 acres 169 hectares per farm although agricultural activity occurs in every state in the union it is particularly concentrated in the great plains a vast expanse irrigation water use includes water that is applied by an irrigation system to sustain plant growth in agricultural and horticultural practices irrigation also includes water that is used for pre irrigation frost protection chemical application weed control field preparation crop cooling pages in category irrigation in the united states the following 38 pages are in this category out of 38 total this list may not reflect recent changes as to the extent to which the colorado river could be rendered available for irrigation it has been appropriately remarked by geologists that the country bordering on the colorado is the most conspicuous example in the world of over drainage for nowhere else do we find a stream that for hundreds of miles cuts its way 500 to 600 feet deep through solid rock

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