Calculate the depth of water to be applied to the field, if the consumptive use requirement of the crop is 72 mm.
Electrical conductivity (EC) of irrigation water = 1.4 m mho/cm. EC of leaching water = 14 m mho/cm at 25% reduction in the yield of a crop.
1
80 mm
2
70 mm
3
90 mm
4
60 mm