1. Why is irrigation important?



2. What factors should be taken into account when developing an irrigation project?


3. Explain two problems that may arise as a result of poor irrigation practices.

4. What hydraulic measures should be instituted in irrigation schemes in order to reduce or prevent the incidence of diseases like malaria and bilharzias.

5. Compute the rate of application for a 1.0 l/s sprinkler head if the sprinkler spacing is 18 x 24m.

6. The Field Capacity and Permanent Wilting Point of a 45cm layer of soil are 18% and 9.7% respectively. How much water in cubic meters per ha does this layer hold?

7. The net irrigation dose for an area of 1ha is 19.8mm. The water delivered during irrigation is 280m³. What is the application efficiency?​