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seed germination, to make a moderate application when the crop is young, or to make a <br />heavy application when the water use requirement of the crop is at its maximum. Each <br />center pivot system is designed for all crops and the amount of irrigation water the crop <br />will need. Early in the season the typical practice is to make a full revolution and shut <br />down until more irrigation is needed by the crop. When the crop reaches the point of its <br />maximum water requirement, the system will typically run non -stop until the maximum <br />water use period is past. In addition to applying irrigation water, many farmers use their <br />center pivots for chemigation — applying liquid fertilizer and /or herbicides and <br />insecticides via a separate tank and pump system that injects a metered amount of <br />chemical into the pressurized pipe that supplies water to the system. <br />Management practice after first cutting: <br />Management procedures after first cutting are essentially the same as before the first <br />cutting. Since ensuing cuttings will most likely be lower regardless of water supply, there <br />is somewhat more flexibility in irrigation operations. <br />August 2013 PR -08 2.05.4(2)(e) - 52 <br />