Combining Young Orchard and Berry Field
This picture illustrates the possibility of economizing space and labor by planting vines of the blackberry or raspberry between the trees of a young apple orchard. The vines come into bearing and produce a lucrative crop during the years when the apple trees are making their early growth, and are as yet unproductive.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 4 Chapter 2