Irrigation: Theory and Practice

Andhra Pradesh applied aquifer border canal capacity cent centrifugal pump channel characteristics check basin check gate clay coefficient concrete contour crop curve depth determined developed diameter discharge drainage drawdown drilling drip irrigation efficiency elevation equation evaporation evapotranspiration factors field flow flume foot valve formation friction furrow gravel pack grid point ground water ha-m head head loss hectares hole hydraulic hydraulic conductivity impeller increase India installed irrigation system irrigation water Karnataka kg/cm² land lateral line layer length litres per second loam loss measured method metres moisture content motor nozzle obtained operation pipe pipeline plant pores Pradesh pressure rainfall Rajasthan ratio root zone rotary saline salt sand screen shaft slope sodium soil moisture soil salinity solution sprinkler structure submain suitable Tamil Nadu tensiometer tion tube usually values valve velocity vertical water level water surface water table weir width yield