Soil Science, Vol. 4

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Excerpt from Soil Science, Vol. 4: A Monthly Journal Devoted to Problems in Soil Physics, Soil Chemistry and Soil Biology, July-December 1917In a sandy soil, Koch and his associates (16) obtained nitrogen fixation by the addition of dextrose, cane sugar, or starch. There was practically no increase shown when straw, filter paper, or buckwheat was applied. The addition of green mustard in a dried, pulverized form resulted in a loss of nitrogen, which loss, they thought, was due partly to the escape of ammonia from the decomposing mustard.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.