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• <br />N = number of wetting furrows = Q (total gpm) /corrugate flood rate (start with 7gpm per <br />gate. then round up to the next even number of sections of pipe) <br />flow per gate: 7 (7gpm P try) (16) / ,, , <br />*gated pipe comes in 30ft lengths cU 2.5ft spacings per gate = 12 gates per pipe section <br />N= 1 s' Estimated number of gates = (14) /(16) (Not final number) <br />Estimated Number of 30ft gated pipe: <br />_ (17)/12 = s - Rounded up to whole number = (18) <br />Net number of Gates <br />N= (18)x12 <br />ZX/ Z - Z4 (19) <br />• <br />R =width between wetting furrows, feet (30inch or 2.511) (20) <br />L = row length, feet (NRCS recommends 400- 600ft)... use /,, 00 <br />(21) <br />NUMBER OF SETS PER DAY: <br />= 24/ (11) <br />= 24/ 'i <br />= .', 7 (rounded down) = <br />M <br />(22) <br />w <br />SYSTEM EFFICIENCY ( maintenance, cleaning head gate, checking water, farmer needed <br />time off) ... _ (23) 5 <br />l <br />NET EFFECTIVE ACREAGE WATERED <br />_ (15) x (22) x (7) x (23) <br />15 <br />03 ) x ( 7z-- )x( )x( 8 <br />. i A CRES <br />BIZ e�l LO w <br />