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Bacteriology lias contributed, within the past few years, eome important facts to our rapidly expanding knowledge of soils. It has shed a new light on the transformation and accumulation of nitrogen compounds in tilled land, as well as in uncultivated forest and prairie soils. It has taught us to understand more clearly the decomposition of cellulose and allied compounds, and the conservation of the potential energy of hydrogen and of methane. It has given the student of soils and of soil fertility a number of new methods for measuring differences in the quality and quantity of plantfood. ,I tbids fair to supply us with still other methods that would be more adequate than any chemical methods yet devised, for the investigation of fundamental problems of soil fertility. In view of the past achievements of soil bacteriology and of the promise of even greater usefulness in the future, no apology is needed for the publication of this little volume. The authors have felt, for some time, that there is room in every well-arranged course in soils for a series of exercises in soil bacteriology, and have, therefore, made the attempt to provide them. It is their hope that after preliminary instruction in general bacteriology and laboratory technique the Guide will prove useful to students of soils, and that time and service will permit the elimination of the imperfections and inadequacies that undoubtedly exist in it. Toward this end, friendly criticism will be appreciated. Meanwhile, the authors wish to express their indebtedness roD r. E. E. Buchanan, of the Iowa State College, for many helpful suggestions.
(Typographical errors above are due to OCR software and don't occur in the book.)
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Paperback. Etat : New. Print on Demand. This book illuminates the collaborative works of soil bacteriology and soil science, providing a complete guide to the transformative and accumulative effects of nitrogenous compounds in soil. The author presents a series of exercises designed to demonstrate fundamental soil fertility problems and provide practical experience with soil bacteriological methods. These exercises encompass the examination of soil infusions, the isolation and identification of soil organisms, and the measurement of nitrogen transformations in soil. Through these exercises, readers will gain a deep understanding of the complex interactions between soil microorganisms and plant nutrients. This book will be an essential resource for students, researchers, and practitioners in the fields of soil science, microbiology, and agriculture, contributing to advancements and discoveries in soil fertility and plant nutrition. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. N° de réf. du vendeur 9781330457283_0
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