4.1. System Components

Try these first

1. 1.

   What is surface irrigation?

   Hint

   Think about how water moves naturally.

2. 2.

   Name one advantage of sub-surface irrigation.

   Hint

   Consider how it keeps water from the sun.

3. 3.

   Which of the following is a method of surface irrigation?

   • Drip irrigation
   • Furrow irrigation
   • Centre pivot irrigation

   Hint

   It's one of the 'F's in BFF for surface irrigation types.

4. 4.

   True or False: Sub-surface irrigation helps reduce weed growth.

   • True
   • False

   Hint

   Think about where the water goes!

5. 5.

   Calculate the water requirement for a 2-hectare field using surface irrigation considering an infiltration rate of 5 mm/hour and a water application depth of 20 mm.

   Hint

   Remember to convert hectares to square meters!

6. 6.

   Evaluate the effectiveness of trickle irrigation in a water-scarce region compared to traditional methods.

   Hint

   Think about both water usage and plant health benefits.