TOFG-all

Irrigation—Principles & Practices

Unit 1.5 | Part 1 – 227
Assessment Questions

Assessment Questions

1. 
   

   Describe four functions of water in an agricultural system.

   
   


2. 
   

   What is soil saturation?

   
   


3. 
   

   What is field capacity?

   
   


4. 
   

   What is the level of soil moisture at which most crop plants require additional water?

   
   


5. 
   

   Describe two ways that agriculturists determine the need for irrigation.

   
   


6. 
   

   Number the following stages of crop development in terms of their sensitivity to drought/water
   stress (1 being most sensitive and 4 being least sensitive):

   
   

____ Flowering

____ Yield formation/fruit set

____ Early vegetative growth

____ Fruit ripening

7. The soil water condition between field capacity (FC) and permanent wilting point (PWP) is
   referred to as: