The duty of water is maximum at______.

Concept:

Duty:

• It is the number of hectares of land irrigated for full growth of a given crop by a supply of 1 cumec of water continuously during the entire base period of that crop.
• Duty is the area that can be irrigated by the discharge of 1 cumec of water.
• At the head of the canal, there are numerous losses to occur later which requires more amount of water to irrigate a particular field. However, if considered on the field, all losses have already occurred and a lesser amount of water is required to irrigate the same considered area.
• Duty of water changes from place to place, it will be maximum at the field and minimum at the head of the canal.