PENENTUAN HEAD LOSS EMITTER TIPE SELANG KECIL DARI BAHAN LOKAL SEPANJANG PIPA LATERAL PADA SISTEM IRIGASI TETES
ABSTRACT: Irrigation is an
important factor in agricultural rop planting trickle or drip irrigation method
is casier in operational, reguire a lower operational pressure and has a
possibility to make from local material. Drip irrigation is a method of water
application in form of drip on the soil surface or subsurface. Head loss along
lateral is a common problem found in this method caused high variation in
emitter discharge. This research aimed to determine emitter head loss along
lateral, impact of emitter discharge on operational pressure, pipe diameter and
treatment applied on lateral. This research utilized small pipe (1.6 mm in
diameter) as emitter. Output discharge more collected and analyzed using
complete random design method having 3 level of pressure (4, 6, and 8 psi) and
3 level of lateral diameter (1/3, ¾, and 1 inchi). Head loss calculated using
Darcy-Weisbach formula. Result showed a trend of increasing emitter discharge
by increasing operational pressure. Increasing in emitter discharge was also
found when a larger diameter used in system. Discreasing in head loss was
detected when higher pressure a larger lateral used. Emitter uniformity
coeffisien, calculated using cristiansen formula, was 91.2 % showing a selected
emitter type was acceptable for drip irrigation method.
Keywords: emitter, head lose,
drip irrigation
Penulis: Siti Mechram
Kode Jurnal: jppertaniandd080014
