In some tropical regions, agroforestry systems that involve mixed cropping of deep rooted trees and shallow-rooted food crops are used. What advantages in nitrogen management do such systems have over...

In some tropical regions, agroforestry systems that involve mixed cropping of deep rooted trees and shallow-rooted food crops are used. What advantages in nitrogen management do such systems have over monocropping systems that do not involve trees?

You have learned that nitrogen, potassium, and phosphorus are all “fixed” in the soil. Compare the processes of these fixations and the benefits and constraints they each provide.