Cow Peas Under Cultivation
This picture shows another form of leguminous plant that has become popular in comparatively recent years. It is of solid and compact growth, and makes a remarkable cover or forage crop. Like the other legumes, Its product is rich in nitrogen, a fact long recognized but the explanation of which has been given only in comparatively recent years.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 3