The correct answer is 30 to 40% Sprinkler irrigation: It is a type of irrigation that deliver water with pressure to the field through aluminium or PVC pipes fitted with a nozzle system, water is sprayed in the air and Looks like rainfall. Water use efficiency is 60% compared to the surface method. Water-saving up to 30% - 40%. Sprinkler pressure is 2. 5-4. 5 kg/cm2Sprinkler system is used in undulated land (sloppy) where levelling is difficult and erosion can be a problem as a spray of water can be regulated so, sprinkler irrigation is used efficiently. It is suitable for coarse texture soils (sandy soil ) where water retention capacity is low as a sprinkler system provides a small amount of water in n frequent manner Two types of Sprinkler system:Revolving type sprinkler system Perforated pipe type sprinkler system Additional InformationHighest water-saving efficiency is seen in drip irrigation 95%