Download or read book Scientific Agriculture written by and published by . This book was released on 1925 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1921 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Utilization of Secondary and Trace Elements in Agriculture written by UN Economic Commission for Europe and published by Springer Science & Business Media. This book was released on 1987-06-30 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Symposium held in Geneva, January 12-16, 1987
Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1933 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulphur in Agroecosystems written by E. Schnug and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume in the series Nutrients in Ecosystems. Sulphur as an essential plant nutrient has received little attention. This is explained by the facts that sulphur was obviously in sufficient supply from the atmosphere, from soil and as a by-product in mineral fertilizers. Increases in the yield potential and thus in the nutrient requirement of modern crops, however, as well as remarkable changes in SO2 emissions by private households, power stations and industry, associated with legislative measures to reduce air and water pollution, have altered the situation to a large extent. In particular the public concerns about forest decline and pollution-induced climatic changes have initiated extensive research programs on the physiological functions of sulphur in plants, on the occurrence and plant availability of sulphur in agricultural and forest soils and on the chemistry of sulphur compounds in the tropo- and stratosphere. This book cannot be an encylcopedia of sulphur in all the media mentioned nor in all ecozones of the globe. However, it aims to give an overview of our present knowledge with a special focus on the sulphur situation in agrosystems of industrialised Western Europe. The ecological trends for sulphur observed in this region during recent decades are likely to be mirrored wherever industrialisation and urbanisation take place and where an increasing standard of living demands clean air, good drinking water and nutritious food. Agricultural production systems, therefore, require well-founded information on the actual sulphur nutrition and potential sulphur-fertilizer requirement of crops and soils respectively. It is hoped that this book will provide this information and will encourage further research where open questions still exist.
Download or read book Cycling of Mineral Nutrients in Agricultural Ecosystems written by M Frissel and published by Elsevier. This book was released on 2012-12-02 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cycling of Mineral Nutrients in Agricultural Ecosystems contains the papers presented in the first international environmental symposium of the Royal Netherlands Land Development Society held at Amsterdam on 1976. The symposium is cosponsored by the International Association for Ecology and Elsevier Scientific Publishing Company. This compilation reflects the exchange of information and ideas by specialists and participants of the symposium. The book is comprised of nine chapters, which cover the following concepts of nutrient cycling in agricultural ecosystems: principles and control of nutrient cycling; description and classification of agro-ecosystems; nutrient cycling data from different countries; and general discussion on nutrient balances, changes in soil pools, manipulations, and future researches. This book also offers potential background and perspectives for further studies on nutrient cycling in agro-ecosystems, presenting a view on what directions future research should take. This volume will be an invaluable reference source for environmental science students and professionals. Research workers in agriculture and other environmental disciplines will also find this book useful.
Download or read book Sulphur in Biology written by Katherine Elliott and published by John Wiley & Sons. This book was released on 2009-09-16 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Novartis Foundation Series is a popular collection of the proceedings from Novartis Foundation Symposia, in which groups of leading scientists from a range of topics across biology, chemistry and medicine assembled to present papers and discuss results. The Novartis Foundation, originally known as the Ciba Foundation, is well known to scientists and clinicians around the world.
Download or read book Soil Science written by and published by . This book was released on 1918 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: A monthly journal devoted to problems in soil physics, soil chemistry and soil biology.
Download or read book Agriculture Ancient and Modern a Historical Account of Its Principles and Practice Exemplified in Their Rise Progress and Development written by Samuel Copland and published by . This book was released on 1854 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Nitrogen Fixation and Sustainability of Tropical Agriculture written by African Association for Biological Nitrogen Fixation. Conference and published by IITA. This book was released on 1992-10-27 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen fixation in tropical agrosystems: twenty years of biological nitrogen fixation research in Africa; Sustainable agriculture: definition and measurement; Biological nitrogen fixation systems in tropical ecosystems: an overview; A protocol for screening legumes as soil-improving crops; The sustenance of tropical agriculture with multipurpose azolla; Facteurs pedoclimatiques limitant la lixation biologique l'azole; Response of some tropical nitrogen-fixing woody legumes to drought and inoculation with mycorrhiza; Improvement to the Phaseolus/Rhizobium symbiosis, with particular reference to the Caribbean region; Effect of pest management systems on biological nitrogen fixation; Agronomic evaluation of a rock phosphate as a phosphorus source for Leucaena leucocephala grown on an utisol; Nodulation of soybean grown under field conditions and inoculated with Bradyrhizobium japonicum strains; Effect of fertilization and Rhizobium inoculation on the growth of Leucaena and Gliricidia on an alfisol in south-western Nigeria; Early growth and nodulation in Leucaena and Gliricidia and the effects or pruning on biomass productivity; Comparative stude on the growth and productivity of Sesbania and Leucaena in the Central Plateau region, Rwanda; Supernoculation and non-nodulation mutants of soybean; Genetically improved rhizobia and their use in agriculture; Sustainability of nitrogen-fixing cropping systems: Nodulation and nitrogen fixation and transfer in a cowpea/rice cropping system; The role of legumes in sustaiing soil productivity and controlling soil erosion; Fitting soil-improving legumes into inland valley rice-baes cropping systems in West Africa; Herbage yield and soil fertility restoration potential of some tropical forage legumes.
Download or read book Phytoma written by and published by . This book was released on 1980 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Energy and Environment written by Beat Meyer and published by Elsevier. This book was released on 2013-09-11 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur, Energy, and Environment is a guide to the properties of sulfur; its three important compounds; and a review of the production, use, and recovery of sulfur in relation to energy production and environmental protection. After a brief introduction to the history of sulfur, the chemical properties of the element and some important compounds are reviewed, using common analytical methods. Sulfur is a strategic chemical in many modern applications and may make headway into high-volume non-chemical uses as it is being modified according to our changing technology and needs. The sources of sulfur and where it frequently occurs is explained. This discussion is followed by citing reviews of the four most important cycles, that is, the global sulfur cycle, hydrosphere, atmospheric sulfur budget, and the anthropogenic sulfur cycle. Sulfur production methods, coal combustion chemistry, and flue gas desulfurization are then described. The many uses of sulfur are described, including in medicine, agriculture, chemical industry, and the plastic industry. However, throughout the production of sulfur, problems affecting the environment occur, so environmental control and legislation are also discussed. Finally, the trends of sulfur research, production, use and recovery, role of chemistry, and the future overall area where science, energy, chemistry, and the environment exist together are presented. Chemists and chemistry students, industrialists, and environmental planners will find this guide to sulfur helpful. Lecturers in chemistry and researchers in the many fields of application of sulfur will likewise benefit from it.
Download or read book Technical Scientific French written by Edwin Bucher Williams and published by . This book was released on 1926 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biochemistry of Sulfur written by Ryan J. Huxtable and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: There can be few elements with a biochemistry as coherent as that of sulfur. This important element is crucial to myriad aspects of metabo lism, catalysis, and structure. The plurality of functions in which sulfur is involved derives squarely from the numerous oxidation states in which it may exist, some having great stability, some being capable of ready redox interconversions, and yet others having great instability. As a result, the flux of sulfur from the geosphere through the various kingdoms of life leaves few biochemical processes unaffected. Although there are large gaps in the fabric of our basic knowledge of sulfur biochemistry, it is sufficiently framed to allow a unified and organized story, a story which many of the best-known names in bio chemistry have helped to write. It has been both a task and a privilege to try and summarize this story, one that is enormous, complex, fast moving, still developing and, above all, exciting. I suppose that no mo nographer of such a vast subject could be satisfied with his efforts. It is unfortunately probable that in attempting this task I have made as many errors as a Stilton cheese has blue streaks, and as many omissions as a Swiss cheese has holes. Perfection is not to be achieved in a monograph. Inasmuch as I have succeeded, the credit belongs to those whose efforts gave us the knowledge we have. Where I have failed, the fault is only mine.
Download or read book Agrochimica written by and published by . This book was released on 1964 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin de la Soci t D histoire Naturelle de L Afrique Du Nord written by Société d'histoire naturelle de l'Afrique du Nord and published by . This book was released on 1919 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Bulletin bibliographique" included in most of the volumes, 1909-19.
