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| Author | : F. J. Stevenson |
| Publisher | : John Wiley & Sons |
| Total Pages | : 516 |
| Release | : 1994-08-16 |
| Genre | : Technology & Engineering |
| ISBN | : 9780471594741 |
Download Humus Chemistry Book in PDF, ePub and Kindle
A reference text focusing on basic organic chemistry and reactions of naturally occurring organic substances in soils. Covers pools of organic matter in soils, transformations, methods of extraction and fractionation. Section two deals primarily with the chemistry of known classes of organic compounds in soils including saccharides, lipids and constituents containing nitrogen, phosphorus and sulfur. Section three is concerned with basic organic chemistry of humic substances, followed by the importance of organic matter associations and interactions. Contains new chapters on NMR spectroscopy, analytical pyrolysis and on chemical structures.
| Author | : K. Kumada |
| Publisher | : Elsevier |
| Total Pages | : 255 |
| Release | : 1988-01-01 |
| Genre | : Science |
| ISBN | : 0080869858 |
Download Chemistry of Soil Organic Matter Book in PDF, ePub and Kindle
Despite the large number of papers and books published on soil organic matter (humus), our knowledge of the subject is still very limited, as is our knowledge of humic acid. The author of this book began to study humus at the end of the 1940s and continued until 1984 when he retired from Nagoya University. With the intention of establishing a systematic understanding of soil organic matter, he has compiled facts and a discussion of humus based on his extensive experimental results during the past 40 years. In this book, humic acids are classified into A, B, Rp and P types, based on their optical properties. The elementary composition and other chemical properties of humic acid types are shown to be regularly different from each other. A new method for humus composition analysis applied to various kinds of soils in Japan and several other countries indicates that the diversity of humus compositions of soils is systematically understandable. These findings lead the author to novel theories on the chemical configuration and formation of humic acids and humic substances. Diagenesis of humus under terrestrial conditions is illustrated as to the buried humic horizons of Black soil (Andosol). The book will be useful not only to soil scientists and agronomists but also to geochemists, oceanographers, limnologists, water scientists, biologists and chemists who are dealing with organic matter in terrestrial, aquatic, and sedimentary environments.
| Author | : Selman Abraham Waksman |
| Publisher | : |
| Total Pages | : 546 |
| Release | : 1963 |
| Genre | : Humus |
| ISBN | : |
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| Author | : J. Kubát |
| Publisher | : Elsevier |
| Total Pages | : 222 |
| Release | : 2012-12-02 |
| Genre | : Technology & Engineering |
| ISBN | : 0444599592 |
Download Humus, its Structure and Role in Agriculture and Environment Book in PDF, ePub and Kindle
This volume presents the proceedings of the 10th internationalsymposium Humus et Planta held in Prague in August 19-23,1991. The main topics of this book are devoted to the recentadvances in fundamental, as well as applied research of humicsubstances, the most abundant of the naturally occuringmacromolecules of nature, the understanding of their natureand how they react and interact in their natural environments.Texts are included on the structure, physical and chemicalproperties of humic substances; the relationships among humus,soil properties and fertility; the biotransformations oforganic substances in the soil; the relationships betweenhumic substances and plants and the interactions of humus andxenobiotic substances. This book presents recent knowledge ofthe complicated and challenging humic substances. It will beof interest not only to scientist, but also to Universityteachers and students of agricultural and environmentalsciences.
| Author | : Selman a 1888-1973 Waksman |
| Publisher | : Franklin Classics |
| Total Pages | : 260 |
| Release | : 2018-10-15 |
| Genre | : |
| ISBN | : 9780343158354 |
Download The Actinomycetes Book in PDF, ePub and Kindle
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
| Author | : Kim H. Tan |
| Publisher | : CRC Press |
| Total Pages | : 500 |
| Release | : 2014-06-10 |
| Genre | : Science |
| ISBN | : 1482234459 |
Download Humic Matter in Soil and the Environment Book in PDF, ePub and Kindle
The field of humic matter research has undergone drastic changes in concepts and principles since the first edition of Humic Matter in Soil and the Environment: Principles and Controversies was published more than a decade ago. Still the only book of its kind specifically addressing humic acid principles and controversies, the Second Edition presents the newest advances in humic acid science. Eleven new and rewritten chapters replace the original nine, with updated material representing modern humic acid chemistry. This includes the delineation of organic matter, humus, and humic matter. The book begins by considering organic matter as a whole, describing terrestrial and aquatic organic matter. It examines humus as a mixture of humified and nonhumified organic matter, focusing also on the importance of the nonhumified fraction—plant biopolymers in their original or slightly decomposed forms—as raw materials for formation of the humic fraction. The book then presents concepts of humic matter, referred to as humic acid, covering a range of ideas from traditional views of biopolymers to the latest concepts based on micellar, supramolecular, and nanotube chemistry. The author presents the major pathways of humification and discusses humification theories. He also examines the extraction, isolation, and fractionation of humic matter. The book reviews the chemical composition and model structures of humic acids, the chemical and spectroscopic characterization of humic substances, and the electrochemical properties of humic matter. It also addresses the agronomic, environmental, and industrial (including pharmaceutical) importance of humic matter. This revised and updated edition continues the tradition of providing comprehensive coverage of the genesis, extraction, properties, and impacts of humic matter.
| Author | : A. Piccolo |
| Publisher | : Elsevier |
| Total Pages | : 689 |
| Release | : 1996-06-07 |
| Genre | : Science |
| ISBN | : 0080534236 |
Download Humic Substances in Terrestrial Ecosystems Book in PDF, ePub and Kindle
This book highlights the increasing importance of humic substances in the different scientific fields related to terrestrial ecology, soil quality conservation, and environmental chemistry. It shows that modern humic substances research is not only directed to unravel their yet ill-defined chemical structure but is successfully exploring the interconnected chemical, biological, and physical processes that maintain the ecological equilibrium of soil and ensure a sustainable agricultural production. The book will primarily be of interest to soil scientists and to ecological and environmental scientists. People in the fields of forest science, agronomy, analytical and environmental chemistry, water science, environmental engineering, and coal science will also find this publication worthy of their attention.
| Author | : Kim H. Tan |
| Publisher | : CRC Press |
| Total Pages | : 412 |
| Release | : 2003-04-22 |
| Genre | : Science |
| ISBN | : 9780203912546 |
Download Humic Matter in Soil and the Environment Book in PDF, ePub and Kindle
The only book to completely define and explore the genesis, extraction, properties, and impact of humic matter on agriculture, industry, and the environment, Humic Matter in Soil and the Environment delves into the issues and controversies associated with produced and natural humic compounds. It assesses the role of humic substances in medicines, f
| Author | : Geoffrey Eglinton |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 850 |
| Release | : 2013-11-11 |
| Genre | : Science |
| ISBN | : 3642877346 |
Download Organic Geochemistry Book in PDF, ePub and Kindle
For many years, the subject matter encompassed by the title of this book was largely limited to those who were interested in the two most economically important organic materials found buried in the Earth, namely, coal and petroleum. The point of view of any discussions which might occur, either in scientific meetings or in books that have been written, was, therefore, dominated largely by these interests. A great change has occurred in the last decade. This change had as its prime mover our growing knowledge of the molecular architecture of biological systems which, in turn, gave rise to a more legitimate asking of the question: "How did life come to be on the surface of the Earth?" A second motivation arose when the possibilities for the exploration of planets other than the Earth-the moon, Mars, and other parts of the solar system-became a reality. Thus the question of the possible existence of life elsewhere than on Earth conceivably could be answered.
| Author | : Dmitriĭ Sergeevich Orlov |
| Publisher | : Taylor & Francis |
| Total Pages | : 400 |
| Release | : 1985 |
| Genre | : Science |
| ISBN | : |
Download Humus Acids of Soils Book in PDF, ePub and Kindle
Humus acids are known to occur widely in soils, peats, and natural waters. Soil fertility, migration and accumulation of minerals in natural landscapes, and mineral nutrition of plants are al associated with these acids. In recent times they have been used in industry and medicine. This book provides a survey of numerous experimental studies by the author in the Laboratory of Biochemistry of Soil Organic Matter. It also covers the most important Soviet and foreign studies on the subject. The book will be of use to wide range of specialists.
