| Existing Problem: Low Pressure Sprinklers on Top of Boom | 
|
 The
operating pressure is in the medium range (20-50 psi). Typically the system
will have an end gun. |
|
| Water Conserving Practice: Place LEPA/LESA Nozzles on Drops |
|
 "Low-Energy
Precision Application" (LEPA) and "Low Energy Spray Application"
(LESA) -- sprinkler
technology developed in Texas-- are two sprinkler packages that
move the emitters or sprinklers close to the ground. Typically with
LEPA, a bubbler emitter or sock distributes water in a stream that
must temporarily be contained in furrow dikes (soil pushed up in wheel
tracks and row middles to form miniature basins to hold the water
and prevent runoff) until the water can soak into the soil. With LESA
a spray nozzle on the long drop tubes sprays water up and outward
in a pattern 5 to 10 feet in diameter. With LESA, conservation tillage
or good crop cover may be enough to allow the water to enter the soil.
Follow this link for more information:http://www.cprl.ars.usda.gov
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Source: Evans, R.O., K.A. Harrison, J.E. Hook, C.V. Privette, W.I. Segars,
W.B. Smith, D.L. Thomas, and A.W. Tyson. 1998. Irrigation conservation
practices appropriate for the Southeastern United States. D.L. Thomas (ed.)
Geologic Survey Project Report No. 32. Georgia Geologic Survey, Georgia Department Of
Natural Resources, Environmental Protection Division, Atlanta, GA 30334. 43p. |
