A certain crop is grown in an area of 3000 hectares which is fed by a canal system. The data pertaining to irrigation is as
1. field capacity of soil = 29%
2. optimum moisture = 17%
3. effective depth of root zone = 80 cm
4. relative density of soil = 1.302
1
12.5 cm
2
125 cm
3
0.125 cm
4
1.25 cm