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<br />.- <br />H.l <br /> <br />:1 <br />t,,(J <br />.,.... <br /> <br />B. Monitoring <br /> <br />~; <br /> <br />(1) Furrow, corrugation irrigation systems. <br />(a) Flow rate entering irrigated set. <br />(b) Furrow evaluation. <br />a. Gpm entering the furrow. <br />b. Gpm leaving furrow reach checked. <br />c. Furrow size. condition - cloddy, trash, <br />wheel track. <br />d. Time checked. <br />e. Time of advance. <br />(c) Tailwater runoff. <br />a. Time started. <br />b. Time ended. <br />~. Average flow or total quantity, <br />(d) Weather conditions. <br />a. Approx. wind velocity and direction. <br />b. Temperature - max. and minimum. <br />c. Rain. <br />(e) Check operation of installed irrigation equipment. <br />a. Automated equipment. <br />1. Timers - working condi tion. <br />I. Gates - leaking, drop right, bent. <br />3. Ports - inlet condition, outlet condition, <br />tube long enough <br />4. Condition of ditch or gated pipe - cracks, bent, <br />berms for ditch, pad for gated pipe, tie downs <br />for gated pipe. <br />(f) Data to gather after irrigations completed. <br />a. Effectiveness of irrigation. <br />1. Allow gravational water to drain off. <br />2. Probe minimum of 4 spots in field to estimate <br />acutal penetration of water. <br />- 100 feet diagonally from each corner of <br />irrigated area to minimi2.e effects of ditch <br />seepage (tailwater and head ditch) and from <br />side effects of nonirrigated areas. <br />- Different soil types. <br />- Very flat or very steep slopes. <br />3. Salt buildup in soil <br />(g) Manday estimates irrigations per year. Mandays <br />a. Equipment level 1 - Two men gather all 14 <br />the data possible in one 8 hour day. <br />b. Equipment level 2 - Two men gather all 21 <br />the data possible in one 8 hour day. <br />One man goes back to get additional <br />data the next day. <br />c. Equipment level J - Automated equipment. 7 <br />One man to set up equipment before the <br />irrigation, check once during the irrigation, <br />pick up information after completion <br />of irrigation. <br />d. Equipment level 4 - Automated equipment J 1/2 <br />Enough to leave in place for the season. <br /> <br />51 <br /> <br />,,_.', <br />