Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Download Field Measurement Of Dinitrogen Fixation And Denitrification full books in PDF, epub, and Kindle. Read online Field Measurement Of Dinitrogen Fixation And Denitrification ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author : R. W. Weaver
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (76 download)
Download or read book Field Measurement of Dinitrogen Fixation and Denitrification written by R. W. Weaver and published by . This book was released on 1986 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Niels Peter Revsbech
Publisher : Springer Science & Business Media
ISBN 13 : 1475799691
Total Pages : 352 pages
Book Rating : 4.4/5 (757 download)
Download or read book Denitrification in Soil and Sediment written by Niels Peter Revsbech and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation of atmospheric nitrogen gas by denitrifying bacteria may represent a significant nutrient sink in natural ecosystems. The rate of denitrification has often been difficult to measure in situ, however, and new methodologies should stimulate research on distribution of activity in space and time. The load of fertilizer nitrogen in modem agriculture has led to increasing nutrient reservoirs in recipient subsoils, aquifers, inland waters and coastal seas. By its conversion of nitrate to atmospheric nitrogen, bacterial denitrification is the only biological process to potentially reduce the impact of increasing nutrient loadings by fertilizer nitrogen in the environment. As part of a scientific program set up by the Danish Ministry of Environment to study environment cycling of nitrogen, phosphorous and organic matter (NPO program) in the light of agricultural, domestic and industrial activities, a symposium on DENITRIFICATION IN SOIL AND SEDIMENT was held at the University of Aarhus, Denmark from 6-9 June 19i\9. On the basis of lectures given at the symposium, this book contains a number of invited contributions on the regulation of denitrification activity (control of enzyme synthesis and activity) and measurement of in situ rates of denitrification in terrestrial and aquatic environments (control factors, diel and seasonal variations, etc). Emphasis has been placed on including the recent improvements in methodologies and current understanding of process regulation, however the book also contains examples of integrated research on the significance of denitrification in environmental nutrient cycling.
Author : James Stuart Schepers
Publisher : ASA-CSSA-SSSA
ISBN 13 : 9780891181644
Total Pages : 994 pages
Book Rating : 4.1/5 (816 download)
Download or read book Nitrogen in Agricultural Systems written by James Stuart Schepers and published by ASA-CSSA-SSSA. This book was released on 2008 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of the principles and management implications related to nitrogen in the soil-plant-water system.
Author : African Association for Biological Nitrogen Fixation. Conference
Publisher : IITA
ISBN 13 : 9780471935605
Total Pages : 512 pages
Book Rating : 4.9/5 (356 download)
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.
Author : Peter J. Bottomley
Publisher : John Wiley & Sons
ISBN 13 : 089118810X
Total Pages : 1152 pages
Book Rating : 4.8/5 (911 download)
Download or read book Methods of Soil Analysis, Part 2 written by Peter J. Bottomley and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the primary references on analytical methods in soil science, Part 2 of the Methods series will be useful to all biogeoscientists, especially those with an interest in microbiology or bioremediation.
Author : Guenther Stotzky
Publisher : CRC Press
ISBN 13 : 9780824794415
Total Pages : 576 pages
Book Rating : 4.7/5 (944 download)
Download or read book Soil Biochemistry written by Guenther Stotzky and published by CRC Press. This book was released on 1996-05-08 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides up-to-date reviews on the conditions that affect the quality of soil and on the methods to measure the effects of soil management and bioremediation--focusing on indigenous or introduced microorganisms with the capacity to remediate pollutants.
Author : F.A. Bliss
Publisher : Springer Science & Business Media
ISBN 13 : 9401121001
Total Pages : 164 pages
Book Rating : 4.4/5 (11 download)
Download or read book Enhancement of Biological Nitrogen Fixation of Common Bean in Latin America written by F.A. Bliss and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The common bean (Phaseolus vulgaris L.) is the most important pulse crop in Latin America, as well as in large parts of Asia and Africa. It is particularly important due to its ability, in symbiosis with Rhizobium bacteria, to fix atmospheric nitrogen and due to its high nutrient value. Incorporating contributions from plant breeders, microbiologists, plant physiologists and soil scientists, this volume reports the results of an FAO/IAEA Coordinated Research Programme (1985--1991), whose main objective was to enhance yield and biological nitrogen fixation in common bean by reducing its reliance on soil and fertilizer nitrogen. The volume will be invaluable to scientists working on biological nitrogen fixation and legume production.
Author : D. Beck
Publisher : Springer Science & Business Media
ISBN 13 : 9400913877
Total Pages : 371 pages
Book Rating : 4.4/5 (9 download)
Download or read book Nitrogen Fixation by Legumes in Mediterranean Agriculture written by D. Beck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Workshop, ICARDA, Syria, April 14-17, 1986.
Author : G. Philip Robertson
Publisher : Oxford University Press
ISBN 13 : 0198028261
Total Pages : 481 pages
Book Rating : 4.1/5 (98 download)
Download or read book Standard Soil Methods for Long-Term Ecological Research written by G. Philip Robertson and published by Oxford University Press. This book was released on 1999-10-28 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Standardized methods and measurements are crucial for ecological research, particularly in long-term ecological studies where the projects are by nature collaborative and where it can be difficult to distinguish signs of environmental change from the effects of differing methodologies. This second volume in the Long-Term Ecological Research (LTER) Network Series addresses these issues directly by providing a comprehensive standardized set of protocols for measuring soil properties. The goal of the volume is to facilitate cross-site synthesis and evaluation of ecosystem processes. Chapters cover methods for studying physical and chemical properties of soils, soil biological properties, and soil organisms, and they include work from many leaders in the field. The book is the first broadly based compendium of standardized soil measurement methods and will be an invaluable resource for ecologists, agronomists, and soil scientists.
Author : N. Ahmad
Publisher : Springer Science & Business Media
ISBN 13 : 9400917066
Total Pages : 430 pages
Book Rating : 4.4/5 (9 download)
Download or read book Nitrogen Economy in Tropical Soils written by N. Ahmad and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen Economy in Tropical Soils presents an authoritative and comprehensive state-of-the-art review on soil/plant nitrogen inter-relationships, with special reference to tropical soils and crops in aerobic and anaerobic environments. Use of isotopically labelled nitrogen in experimentation, especially in tropical environments, and recently developed analytical techniques for soil and plant materials are presented. An important aspect is the emphasis placed on the impact of the tropical environment on nitrogen transformations in the soil environment. This book should be an excellent source of information for senior undergraduate and graduate students with interest in soil/plant nitrogen inter-relationships, and for all levels of research workers in these fields.
Author : M. Clarholm
Publisher : Springer Science & Business Media
ISBN 13 : 9400910215
Total Pages : 295 pages
Book Rating : 4.4/5 (9 download)
Download or read book Ecology of Arable Land — Perspectives and Challenges written by M. Clarholm and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture in the industrial world has gone A common interest of the contributors is increas through dramatic changes over the past decades. ing the understanding of the turnover of carbon Mechanization in combination with high inputs of and inorganic nutrients in terestrial ecosystems. fertilizers and pesticides has turned deficits of agri The authors approach this topic from different cultural products into surplus. Over the same directions depending on their interests and ex period we have experienced increased environment pertise. Difficulties are identified in the quantifica al problems in both the atmosphere and our water tion of below-ground production where death and resources, which have been associated with the re-growth, if incorporated into the calculations, changes in management practices. can change production figures considerably as Concern about the potential pollution by compared to values derived from "peak" estimates. nitrogen fertilizers as well as the low utilization The role of root-derived carbon is investigated in efficiency of applied nitrogen by plants has created relation to nutrient competition between roots and a need for a better understanding of nitrogen microorganisms, the cost of N2 fixation and the cycling in the plant-soil-water system. To achieve decomposition of organic nitrogen. Mycorrhizae this, it is neccessary to study process interactions use root-derived carbon and their roles in phos and process regulation in an ecosystem context. phorus conservation and in supplying nutrients to During the last decade many ecosystem studies the host are exemplified.
Author : Yaacov Okon
Publisher : CRC Press
ISBN 13 : 9780849349256
Total Pages : 196 pages
Book Rating : 4.3/5 (492 download)
Download or read book Azospirillum/Plant Associations written by Yaacov Okon and published by CRC Press. This book was released on 1993-11-24 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Azospirillum-Plant Associations presents the most significant information from the vast body of scientific work that has accumulated as a result of nearly two decades of intensive research. It emphasizes advances that have occurred over the last six years, covering such topics as plant growth promotion, recognition and elicitation of plant responses by bacteria and the inoculant industry, the metabolism of production of plant growth promoting substances (phytohormones), and aerotaxis and poly-ß-hydroxybutyrate metabolism. This interdisciplinary volume is an excellent reference for agricultural microbiologists and biotechnologists, plant physiologists, geneticists, microbiologists, and agronomists.
Author : Christon J. Hurst
Publisher :
ISBN 13 :
Total Pages : 920 pages
Book Rating : 4.3/5 (91 download)
Download or read book Manual of Environmental Microbiology written by Christon J. Hurst and published by . This book was released on 1997 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of its continuing service to the microbiological sciences, ASM is proud to publish this major manual. The Manual of Environmental Microbiology will serve as a state-of-the-art compendium of methods for environmental microbiology.
Author : T. Henry Blackburn
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.:/5 (318 download)
Download or read book Nitrogen Cycling in Coastal Marine Environments written by T. Henry Blackburn and published by . This book was released on 1988-03-21 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen discharge to the coastal environment has been increasing, posing the threat of accelerated eutrofication. Considerable research has been conducted in recent years to examine the impact of the nitrogen loading in coastal ecosystems. Based on proceedings from a SCOPE symposium held at the University of Aarhus in July of 1985, this volume covers a variety of up-to-date developments in research on nitrogen cycling in coastal marine environments. Topics include the role of nitrogen in algal productivity, regeneration of nutrients in the water column and the sediments, and the flow of nitrogen in coastal ecosystems.
Author : Jonathan P. Zehr
Publisher : Springer Nature
ISBN 13 : 303067746X
Total Pages : 191 pages
Book Rating : 4.0/5 (36 download)
Download or read book Marine Nitrogen Fixation written by Jonathan P. Zehr and published by Springer Nature. This book was released on 2021-04-02 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to serve as a centralized reference document for students and researchers interested in aspects of marine nitrogen fixation. Although nitrogen is a critical element in both terrestrial and aquatic productivity, and nitrogen fixation is a key process that balances losses due to denitrification in both environments, most resources on the subject focuses on the biochemistry and microbiology of such processes and the organisms involved in the terrestrial environment on symbiosis in terrestrial systems, or on largely ecological aspects in the marine environment. This book is intended to provide an overview of N2 fixation research for marine researchers, while providing a reference on marine research for researchers in other fields, including terrestrial N2 fixation. This book bridges this knowledge gap for both specialists and non-experts, and provides an in-depth overview of the important aspects of nitrogen fixation as it relates to the marine environment. This resource will be useful for researchers in the specialized field, but also useful for scientists in other disciplines who are interested in the topic. It would provide a possible text for upper division classes or graduate seminars.
Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461388473
Total Pages : 208 pages
Book Rating : 4.4/5 (613 download)
Download or read book Advances in Soil Science written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is formed from physical and chemical weathering of rocks - processes described historically because they involve eons of time-by glaciation and by wind and water transport of soil materials, later deposited in deltas and loessial planes. Soil undergoes further transformations over time and provides a habitat for biological life and a base for the development of civilizations. Soil is dynamic -always changing as a result of the forces of nature and particularly by human influences. The soil has been studied as long as history has been documented. Numerous references to soil are found in historical writings such as Aristotle (384-322 B. c. ), Theophrastus (372-286 B. c. ), Cato the Elder (234-149 B. C. ) and Varro (116-27 B. c. ). Some of the earliest historical references have to do with erosional forces of wind and water. The study of soils today has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experienced. This has led to an increase in land degradation and desertification. Desertifica tion is largely synonymous with land degradation but in an arid land context. Deterioration of soil resources is largely human induced. Poverty, ignorance, and greed are the indirect causes of desertification. The direct cause is mismanage ment of the land by practices such as overgrazing, tree removal, improper tillage, poorly designed and managed water distribution systems, and overexploitation.
Author : Trelita de Sousa
Publisher : Cambridge Scholars Publishing
ISBN 13 : 152755676X
Total Pages : 478 pages
Book Rating : 4.5/5 (275 download)
Download or read book Global Implications of the Nitrogen Cycle written by Trelita de Sousa and published by Cambridge Scholars Publishing. This book was released on 2020-07-16 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen constitutes 78% of the Earth’s atmosphere and inevitably occupies a predominant role in marine and terrestrial nutrient biogeochemistry and the global climate. Callous human activities, like the excessive industrial nitrogen fixation and the incessant burning of fossil fuels, have caused a massive acceleration of the nitrogen cycle, which has, in turn, led to an increasing trend in eutrophication, smog formation, acid rain, and emission of nitrous oxide, which is a potent greenhouse gas, 300 times more powerful in warming the Earth’s atmosphere than carbon dioxide. This book comprehensively reviews the biotransformation of nitrogen, its ecological significance and the consequences of human interference. It will appeal to environmentalists, ecologists, marine biologists, and microbiologists worldwide, and will serve as a valuable guide to graduates, post-graduates, research scholars, scientists, and professors.
