Low energy water application (LEWA)
LEWA is low-cost water and energy-efficient device (25-40% saving in water and energy) used as a replacement of overhead impact sprinklers to irrigate fields with higher efficiency, more specifically in row crops in smaller fields.It is operated at a pressure range of 39-98 kPa at its nozzle head,with a discharge rate of 0.87–1.10 m3/h, and throw diameter of 6–8 m. This system is not only cost-effective but also a water and energy-efficient pressurized irrigation system, that is appropriate for small and marginal farmers with small and fragmented landholdings.LEWA is more feasible for paddy crop compared to drip and sprinkler systems.