Smart use of trees and crops brings best yield

Cultivating crops—such as wheat, barley and rye—alongside rows of trees is a system of agroforestry that is known as "alley-cropping." It serves many functions: in addition to enhancing ecosystems and biodiversity, it can also counteract the negative effects of growing crops in treeless open land. The advantages of alley-cropping come from the interaction between trees and crops, resulting in…