Calculate the delta (Δ) for a crop if its duty is 2000 hectares/cumec on the field. Consider the base period of the crop as 100 days.

If the duty is 1428 hectares/cumec and the base period is 120 days for an irrigated crop, then the delta in meters is given by:

What will be the required discharge capacity at the outlet to irrigate a crop field if the kor depth is 259.2 mm, the kor period is 30 days, and the area of the crop field is 2400 hectares?