42.2. Field Capacity and Wilting Point

Try these first

1. 1.

   What is Field Capacity?

   Hint

   Think about what happens right after it rains.

2. 2.

   How is the Available Water calculated?

   Hint

   Consider connecting the terms discussed in class.

3. 3.

   What does Field Capacity represent?

   • The wilting point of plants
   • The moisture available to plants
   • The maximum moisture after drainage

   Hint

   Think about water after it rains.

4. 4.

   True or False: Permanent Wilting Point is the moisture level at which plants begin to wilt.

   • True
   • False

   Hint

   Remember the definition we discussed.

5. 5.

   If a sandy soil has a Field Capacity of 15% and a Wilting Point of 5%, evaluate how a shift in climate reducing rainfall may impact Available Water.

   Hint

   What would happen if FC decreases too due to less rain?

6. 6.

   In a controlled experiment, a particular plant was unable to extract water below 7% moisture content, coinciding with its PWP. Discuss implications for an irrigation schedule based on this PWP.

   Hint

   What strategies can they implement to manage irrigation?