41.8.2. Management Allowable Depletion (MAD)

Try these first

1. 1.

   What does MAD stand for?

   Hint

   Think about irrigation practices.

2. 2.

   Is MAD important for irrigation management?

   Hint

   Consider the root health of plants.

3. 3.

   What does MAD stand for in irrigation management?

   • Management Allowable Depletion
   • Maximum Allowable Drainage
   • Management Agricultural Density

   Hint

   Consider the role of moisture in irrigation.

4. 4.

   True or False: MAD can be different for various soils and crops.

   • True
   • False

   Hint

   Think about how roots interact with soil moisture.

5. 5.

   You have a clay soil with a field capacity of 30% and a wilting point of 15%. If your MAD is set at 50%, how much moisture can you potentially allow to deplete before irrigation?

   Hint

   Think about the difference between field capacity and wilting point.

6. 6.

   A farmer uses sandy soil for growing vegetables and has established a MAD of 30%. If it rains and brings soil moisture to field capacity of 20%, is the farmer allowing adequate depletion for irrigation?

   Hint

   Consider what the MAD allows versus the current moisture levels.