What is duty in irrigation Quora?

Duty may be defined as the number of hectares of land irrigated for full growth of a given crop by supply of 1 cumec of water continuously during the entire base of that period.

What is the formula of duty?

It is expressed in hectares/cumec and is denoted by “D”. For example if 3 cumecs of water is required for the crop sown in, an area 5100 hectares, the duty of the irrigation will be 51003 = 1700 hectares/cumecs and the discharge of 3 cumecs is required throughout the base period.

What is duty of a crop?

Duty: It is the area of land that can be irrigated with a unit volume of water supplied across the base period. It is generally expressed in hectare/cumec. Delta: It is the depth of water required to raise a crop over a unit area across the base period. It is generally expressed in cm or m.

What is duty Delta and base period?

D = Duty of water in the field (in hectare/cumec) Δ = Total depth of water supplied to a crop growing on the field during the entire base period (in meter) B = Base period of the crop (in days) Derivation: Let there be a crop of the base period ‘B’ days.

What is duty irrigation?

The term duty means the area of land that can be irrigated with unit volume of irrigation water. Quantitatively, duty is defined as the area of land expressed in hectares that can be irrigated with unit discharge, that is, 1 cumec flowing throughout the base period, expressed in days.

How is irrigation duty calculated?

For example, if 3 cumecs of water supply is required for a crop sown in an area of 5100 hectares, the duty of irrigation water will be 5100/3 = 1700 hectares/cumecs, and the discharge of 3 cumecs will be required throughout the base period.

What is Duty of water in irrigation?

3.3.2 Duty of water. The term duty means the area of land that can be irrigated with unit volume of irrigation water. Quantitatively, duty is defined as the area of land expressed in hectares that can be irrigated with unit discharge, that is, 1 cumec flowing throughout the base period, expressed in days.

What is the formula of duty in irrigation?

Duty represents the irrigating capacity of a unit. For example, if 3 cumecs of water supply is required for a crop sown in an area of 5100 hectares, the duty of irrigation water will be 5100/3 = 1700 hectares/cumecs, and the discharge of 3 cumecs will be required throughout the base period.

What is duty for irrigation?

What is high duty in irrigation?

The duty of water is high in the case of the perennial irrigation system as compared to the inundation irrigation system. 7. The topography of agricultural land. If the agricultural land is uneven, the water requirement will be more and hence duty will be low and vice versa.

How is duty of water calculated?

What is meant by duty of water?

Duty is defined as the area irrigated by a unit discharge of water flowing continuously for the duration of the base period of a crop. DUTY OF WATER. For proper planning of a canal system, the d the locality under consideration.

What is the meaning of duty in irrigation?

The term duty means the area of land that can be irrigated with unit volume of irrigation water. Duty represents the irrigating capacity of a unit. It is the relation the between the area of a crop irrigated and the quantity of irrigation water required during the entire period of the growth of that crop.

What is the irrigating capacity of a unit?

Duty represents the irrigating capacity of a unit. It is the relation the between the area of a crop irrigated and the quantity of irrigation water required during the entire period of the growth of that crop.

What is the importance of rain in irrigation?

If the rain is directly falling over the irrigation land, is useful for the growth of the crops, which ultimately helps to reduce the irrigation water requirement by the crops for its full growth. This means, the more useful rainfall, less water requirement by the crops, and hence more will be the duty of irrigation water.

How many cumecs are required for irrigation water?

For example, if 3 cumecs of water supply is required for a crop sown in an area of 5100 hectares, the duty of irrigation water will be 5100/3 = 1700 hectares/cumecs, and the discharge of 3 cumecs will be required throughout the base period.