Excerpt from Soil Culture and Modern Farm Methods Most virgin soils contain a goodly amount of the essential inorganic elements, and in water and air we find the four great basic elements in abundance, namely, nitrogen, oxygen, hydrogen and carbon. Standing between these two groups of elements, we have the man we call the farmer, who is the active dynamic force intended by the Creator to make available the actual and potential power in nature's storehouse. We find in the soil silica, phosphorus, potash, lime, magnesia, iron, sulphur and other elements which enter into the economy of plant growth. 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.