Laserfiche WebLink
<br />.1 <br /> <br />I <br /> <br />~.'~.-<. <br />,. <br />h.. <br /> <br />~ij <br />j;;',' ~ <br />~~ <br /> <br />',i <br /> <br />It <br /> <br />;'.' <br /> <br />, <br />I <br /> <br />~. <br />i.. <br />r <br />~ <br /> <br />c, <br />I J <br />1\, <br /> <br />~. <br />;~ <br />!; <br /> <br />~l <br /> <br />-,~ <br /> <br />~ :. <br />.:' <br /> <br />{j" <br /> <br />;1' <br /> <br />CO-146 (Rev.) <br />1/68 <br /> <br />U. S. Department of Agriculture <br />Soil Conservation Service <br /> <br />IRRIGATION WATER MANAGEMENT EVALUATION <br /> <br />r--- Farmer <br /> <br />Date <br /> <br />10 <br />C'J <br />,,~-) <br /> <br />Field <br /> <br />Crop <br /> <br />Stage of Growth <br /> <br />Dominant Soil Type <br /> <br />Irrigation Slope <br /> <br />, - <br />"'".J <br /> <br />How does the farmer tell when to irrigate? <br /> <br />Crop Color <br /> <br />Ball Tes t <br /> <br />Soil Moisture <br /> <br />Consumptive use <br /> <br />Time between irrigations <br /> <br />Other <br /> <br />How much does the farmer apply? <br /> <br />Number of irrigations per season <br /> <br />Amount applied per irrigation <br /> <br />inches. <br /> <br />Total applied per season <br /> <br />inches. <br /> <br />Depth of water needed to refill the root zone: <br /> <br />Interval between irrigations <br /> <br />days <br /> <br />Ball test (record information on back of sheet) <br /> <br />inches <br /> <br />Consumptive use. Peak _in./day. Average daily <br /> <br />inches. <br /> <br />Date of last irrigation <br /> <br />inches needed <br /> <br />Other <br /> <br />Amount of wa.ter applied: <br /> <br />Head of water at field <br /> <br />gpm <br /> <br />cfs <br /> <br />Acres irrigated <br /> <br />Irrigation time <br /> <br />hra. <br /> <br />cfa x <br /> <br />hrs. + <br />inches needed x 100 <br /> <br />acres <br /> <br />in. applied. <br /> <br />Irrigation efficiency = <br /> <br />= <br /> <br />%. <br /> <br />inches applied <br /> <br />Uniformity of Irrigation: <br /> <br />Furrows: Total time in furrows <br /> <br />time to reach end <br /> <br />Graded Borders: Does the water stand on the ends and middle about the same length of time? <br /> <br />Does a large amount run off at end? <br /> <br />Level Borders: Are they filled quickly? <br /> <br />Erosion: <br /> <br />Are furrows eroded at head end? <br /> <br />Silted in at lower end? <br /> <br />Is erosion significant? <br /> <br />Comments: <br /> <br />FIGURE 1 <br /> <br />33 <br /> <br />. \' <br /> <br /> <br />% <br /> <br />