Describe the open-ditch method of subirrigation. What will be ...

[geoffrey]

Describe the open-ditch method of subirrigation.
 
  What will be an ideal response?

Question 2

Describe four benefits of irrigation
 
  What will be an ideal response?

[essyface1]

Answer to Question 1

The open-ditch method of subirrigation has water seeping into the rot zone laterally from ditches or
canals filled with water.

Answer to Question 2

The benefits of irrigation include any four of the following: to supplement precipitation, water can be
added when precipitation does not match crop needs; plant nutrients may be applied efficiently in
irrigation water; pesticides can be applied in irrigation water; irrigation water can reduce frost damage;
irrigation equipment can be used to distribute liquid manure; and irrigation may be used to cool crops
on hot days.