37.10. Crop Coefficient (Kc)

Try these first

1. 1.

   Define the term 'Crop Coefficient (Kc).'

   Hint

   Think about what Kc compares in the context of crops.

2. 2.

   Why is Kc important for irrigation?

   Hint

   Consider its role in irrigation planning.

3. 3.

   What does the crop coefficient (Kc) represent?

   • The amount of soil water
   • The relationship between crop ET and reference ET
   • A measure of soil fertility

   Hint

   Consider what Kc compares.

4. 4.

   True or False: Kc values are constant throughout a crop’s growth period.

   • True
   • False

   Hint

   Think about how crop needs change over time.

5. 5.

   A paddy field has a Kc value of 1.2 and the ETo is calculated to be 7 mm/day. Calculate the ETcrop and discuss its significance in irrigation practices.

   Hint

   Remember to apply the Kc formula correctly.

6. 6.

   Evaluate how changes in climate (e.g., higher temperatures) might affect Kc values for different crops. Provide examples of which crops could be impacted the most.

   Hint

   Think about how temperature influences evaporation rates.