Download or read book The Magnesium Requirement of Fungi written by Harold William Browning and published by . This book was released on 1916 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Miller s London Librarian and Book buyers Gazette Jan 1852 Dec 1853 Appended 1853 Fly Leaves Or Scraps and Sketches Literary Bibliographical and Miscellaneous written by and published by . This book was released on 1852 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reference Sources in Science Engineering Medicine and Agriculture written by Harold Robert Malinowsky and published by Greenwood. This book was released on 1994-06-21 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Thoughtfully compiled, current, and reasonably priced.... Recommended as a 'one-stop-shopping' source..". -- Library Journal "This work is an essential purchase for libraries with collections in the four designated areas". -- ARBA Both print and nonprint sci-tech information sources can be quickly located, and their uses evaluated, with this new resource -- the only sourcebook to cover all four major branches of science. More than 2,400 entries of complete bibliographic information are accompanied by a brief description of each work. Every source is indexed by author, subject, and title. Special chapters cover how technology is changing the way scientists communicate, and how to build a viable collection in specific disciplines.
Download or read book Science and Empires written by P. Petitjean and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: SCIENCE AND EMPIRES: FROM THE INTERNATIONAL COLLOQUIUM TO THE BOOK Patrick PETITJEAN, Catherine JAMI and Anne Marie MOULIN The International Colloquium "Science and Empires - Historical Studies about Scientific De velopment and European Expansion" is the product of an International Colloquium, "Sciences and Empires - A Comparative History of Scien tific Exchanges: European Expansion and Scientific Development in Asian, African, American and Oceanian Countries". Organized by the REHSEIS group (Research on Epistemology and History of Exact Sciences and Scientific Institutions) of CNRS (National Center for Scientific Research), the colloquium was held from 3 to 6 April 1990 in the UNESCO building in Paris. This colloquium was an idea of Professor Roshdi Rashed who initiated this field of studies in France some years ago, and proposed "Sciences and Empires" as one of the main research programmes for the The project to organize such a colloquium was a bit REHSEIS group. of a gamble. Its subject, reflected in the title "Sciences and Empires", is not a currently-accepted sub-discipline of the history of science; rather, it refers to a set of questions which found autonomy only recently. The terminology was strongly debated by the participants and, as is frequently suggested in this book, awaits fuller clarification.
Download or read book Ulrich s International Periodicals Directory written by Carolyn Farquhar Ulrich and published by . This book was released on 1999 with total page 1924 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains essential bibliographic and access information on serials published throughout the world.
Download or read book Directory of European Research and Development written by and published by . This book was released on 1997 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to Scientific Reviews written by and published by . This book was released on 1974* with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual. "An international interdisciplinary index to the review literature of science, medicine, agriculture, technology, and the behavioral sciences". Includes literature appearing in about 75 full coverage source journals, articles with 40 or more references, and marked review references in Science citation index data base. SCI format, with citation, source, permuterm, corporate, patent, and anonymous indexes; also journal lists.
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Libraries of the United States and Canada written by American Library Association and published by . This book was released on 1918 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Organic Matter and Biological Activity written by D. Vaughan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has long been recognized that soil organic matter is the key to soil fertility. As a nutrient store it gradually provides essential elements which the soil cannot retain for long in inorganic form. It buffers growing plants against sudden changes in their chemical environment and preserves moisture in times of drought. It keeps the soil in a friable, easily penetrated physical condition, well-aerated and free draining, providing young seedlings with an excellent medium for growth. But it has another property, the nature and extent of which have been the subject of argu ment and controversy ever since scientists began to study the soil, and that is its ability to affect growth directly, other than by providing nutrient elements. Any one wishing to learn about these effects has been faced with a daunting mass of literature, some confusing, often contradictory, and spread through a multitude of journals. Individual aspects have been covered from time to time in reviews but there has obviously been a need for a modern authoritative text book dealing with the many facets of this subject, so the publication of this volume is timely. The editors and authors are all specialists in their fields, fully familiar with the com plex nature of soil organic matter and with the particular difficulties arising in any study of its properties. Where controversies exist they have presented all sides of the argument and have highlighted areas where further work is badly needed.
Download or read book Soil Organic Matter written by M. M. Kononova and published by Elsevier. This book was released on 2013-10-02 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Organic Matter: Its Nature, Its Role in Soil Formation and in Soil Fertility focuses on the contributions of soil organic matter in soil formation and fertility, including weathering, decomposition, and synthesis of humus substances. The publication first elaborates on the main stages in the history of soil humus study and ideas on the composition of soil organic matter and nature of humus substances. Discussions focus on organic substances of individual nature, strictly humus substances in soil organic matter, and humus substances as a complex of high molecular- weight compounds. The text then examines the biochemistry of humus formation, including the role of physical, chemical, and biological factors, origin of humus substances, possible participation of lignin in the formation of humus substances, and the role of oxidizing enzymes in the synthesis of humus substances. The manuscript takes a look at the importance of organic matter in soil formation and soil fertility and the natural factors of humus formation. Topics include the role of organic matter in the weathering and decomposition of soil minerals; role of organic matter in the formation of soil structure; effect of organic matter on the growth and development of plants; and influence of chemical and physicochemical soil properties on humus formation. The publication is a dependable source material for readers interested in the influence of soil organic matter in soil formation and fertility.
Download or read book Canadian Chemical Processing written by and published by . This book was released on 1918 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Soil Organic Matter in Tropical Ecosystems written by David C. Coleman and published by . This book was released on 1989 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Constituents of organic matter in temperate and tropical soils. Soil organic matter as a source and a sink of plant nUtrients. Interactions of soil organic matter and variable-charge clays. Biological processes regulating organic matter dynamics in tropical soils.
Download or read book Integration of Geographic Information Systems and Remote Sensing written by Jeffrey L. Star and published by Cambridge University Press. This book was released on 1997-01-28 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of remote sensing and geographic information systems to resource management and environmental research.
Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).
