4. Duty and Delta

Try these first

1. 1.

   What is Duty in irrigation?

   Hint

   Think of how many hectares one cumec can cover.

2. 2.

   What does Delta represent?

   Hint

   Remember it's measured in centimeters.

3. 3.

   What does the term Duty refer to in irrigation?

   • The area irrigated per unit of water flow
   • The total depth of water required
   • The efficiency of an irrigation method

   Hint

   Think about water allocation for different crops.

4. 4.

   True or False: Delta can vary significantly between different crop types.

   • True
   • False

   Hint

   Consider examples like paddy and wheat to recall.

5. 5.

   If the duty of a new irrigation method is 500 ha/cumec and it sources 3 cumecs of water, how many hectares can be irrigated? What does this mean for crop planning?

   Hint

   Use basic multiplication!

6. 6.

   Consider a scenario where the delta for a drought-resistant crop is recorded at 40 cm. If the farmer uses 900 mm of water efficiently, can the crop thrive, or does it fall short?

   Hint

   Convert millimeters to centimeters for an accurate comparison.