Excerpt from Scientific Agriculture and La Revue Agronomique Canadienne, Vol. 1: January June 1921 The rapid increase in the areas devoted to the growth of Alfalfa on the North American continent together with the introduction of the many various strains by the U. S. Department of Agriculture has enabled field experimenters to obtain a practical acquaintance with the great diversity of plant types to be found in the various strains of Alfalfa now under cultivation. These variations are exhibited not only in habit of growth, yield, seeding properties, and quality; but also with respect to the power possessed by certain strains to resist low temperatures in winter and fluctuating temperatures in spring and autumn. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.