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<br />l(") <br />r-- <br />~ <br />c:; <br />:-, <br /> <br />~:.:) <br /> <br />------- <br />-. ..-,----- <br /> <br />efficiency, soil moisture depletions, and irrigation applications. <br /> <br />Methods of improving water management are discussed with the farmers. <br /> <br />Any assistance requested to improve efficiency or ,calculate application <br /> <br />rate is given. <br /> <br />Field data collected is checked by the field representatives and <br /> <br />prepared for the computer. <br /> <br />WATER APPLICATION <br /> <br />Irrigation application in the Grand Valley is by the corrugation <br /> <br />method. There is a limited number of sprinklers being operated. <br /> <br />Farm delivery systems include open head-ditches, of earth or <br /> <br />concrete, or underground piping in some orchards. <br /> <br />Few fields, mostly under the private entities, have water measurement <br /> <br />. <br />devices. Under these companies water is allocated 'by a "share" <br /> <br />basis. A "share" represents a number of miners inches of continuous <br /> <br />flow. The number of shares available to a farmer i8 based on the <br /> <br />acreage owned or number of shares purchased from the irrigation <br /> <br />company. The government project allocates water on a basis of <br /> <br />one cubic foot per second of continuous flow per 40 acres of land. <br /> <br />Many irrigators operate on a rotation basis with neighbors along a <br /> <br />canal or lateral. The method of scheduling disregards any changes in <br /> <br />climatic conditions. <br /> <br />Because of a low water charge for irrigation water most farmers <br /> <br />believe that water is cheaper than labor. <br />