Lift irrigation
In lift
irrigation, water instead of being transported by natural flow through the
action of gravity requires external energy supplied through animal, fuel or
electricity using pumps or other mechanical means.Lifting water from a source
from lower elevation to higher elevation requires external energy.Lift
irrigation involves carrying the water to the delivery chamber from the water
source and distributing it to the required places.
The
water is carried out by the help of pumps from the water source at the lower
portion of the land from channels or ponds.Distribution is done by the gravitational
method.For this, a contour map is prepared and the places to be irrigated are
blocked according to their need. Pipelines of required diameter and suitable
valves are placed for the distribution.This method allows farmers to irrigate
crops at a higher elevation. Farmers can supply water to their crops as and
when needed,this reduces the chances of excess irrigation.Besides, this
irrigation technology reduces the conveyance loss as it is directly applied to
the field resulting in higher irrigation water use efficiency (more than 60%).