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18 of 20 <br />• <br />N =number of wetting furrows= Q (tutal gpm) loorrugate flood rate (start with 7gpm per <br />gate, then round up to the next even number of scdii f pipe) <br />� <br />lbw per gate: 7 (7gpm I try) (16) J <br />zq po lo, s G �l' ?15 s_1�. _nG <br />"gated pipe comes in 30ft lengths Q 2.5ft spacings per gate -12 gates per pipe section <br />N- la Estimated number of gates = (14) 1(16) (Not final number) <br />/SS <br />22 (11) -� uIE $ P r��• " <br />Estimated Number of 30ft gated pipe: <br />L <br />_ (17)! 12 = �'r�z' ?� Roundod up to whole number = Z- (18) <br />Net number of Cates <br />N =(18)x12 <br />ZX /Z-- Z+- (19) <br />R =width between wetting furrows, feet (30inch or 2.5ft) (20) <br />L - row length, feet (MRCS recommends 40U- 600ft)... use 400 (21) <br />NUMBER OF SETS PER DAY: <br />= 241(11) <br />= 241 ° I <br />(rounded down) - (22) <br />SYSTEM EFFICIENCY ( maintenan;e, cleating head gate, checking water, farmer needed <br />time OM (23) b.s,�acei G <br />W c. <br />NET EFFECTIVE ACREAGE WATERED <br />_ (IS) x (22) x (7) x (23) <br />15 <br />83 ) x ( z )x( 9 )x( V ) <br />'� <br />n t3 ACRE <br />• <br />