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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 : Roland Daniel Hauck
Publisher :
ISBN 13 : 9780891187806
Total Pages : 0 pages
Book Rating : 4.1/5 (878 download)
Download or read book Field Measurement of Dinitrogen Fixation and Denitrification written by Roland Daniel Hauck and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurement of biological dinitrogen fixation in the field; Advantages of the nitrogen-15 dilution technique for field measurements of symbiotic dinitrogen fixation in legumes; Re-examination of the limitations of nitrogen-15 isotope dilution technique for the field measurement of dinitrogen fixation; Advantages and disadvantages of nitrogen-15 isotope dilution to quantify dinitrogen fixation in field-grown legumes - a critique; Field measurement of denitrification - an overview; Advantages of the acetylene method of measuring denitrification; Limitations of the acetylene blockage technique for field measurement of denitrification; Critique of the acetylene blockage technique for field measurement of denitrification.
Author : Soil Science Society of America
Publisher :
ISBN 13 :
Total Pages : 115 pages
Book Rating : 4.:/5 (133 download)
Download or read book Field Measurement of Dinitrogen Fixation and Denitrification written by Soil Science Society of America and published by . This book was released on 1986 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 : 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 : 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 : 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 : 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 : 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 : 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 : Alan John Sexstone
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.3/5 (129 download)
Download or read book Soil Denitrification written by Alan John Sexstone and published by . This book was released on 1983 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kuan M. Goh
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (871 download)
Download or read book Field Measurements of Symbiotic Nitrogen Fixation in an Established Pasture Using Acetylene Reduction and a 15N Method written by Kuan M. Goh and published by . This book was released on 1978 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Han Golterman
Publisher : Springer Science & Business Media
ISBN 13 : 1475799721
Total Pages : 295 pages
Book Rating : 4.4/5 (757 download)
Download or read book Denitrification in the Nitrogen Cycle written by Han Golterman and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers presented at a Nato Advanced Re search Workshop entitled "DENITRIFICATION IN THE N-CYCLE," held in Braunschweig (W-Germany) from 24 to 27 Mai 1983. All expenses were provided by the North Atlantic Treaty Organization. The scientific programme was in the first instance planned by some members of the Eco-Science Panel under the stimulating organization of Dr. Oscar Ravera and the final programme was prepared in co-operation between Ravera and myself. However, even during the meeting important con tributions were added. The meeting was hosted by the Microbiologi cal Dept. of F.A.L., which also took care of the organizatory as pects. Nitrate is constantly lost from both terrestial and aquatic ecosystems, causing rnixed feelings between ecologists and agricul turists. While bacteriologically very rnuch is known, the ecology of the processes is still poorly understood, nor can it be evaluated what it rneans as an econornic loss for farrners and world food produc tion. Therefore this NATO Advanced Workshop was established to per mit a lirnited nurnber of scientists active in this field to corne to gether for a short while to address the following objectives: 1) To exchange ideas between scientists (bacteriologists and ecologists) and agronornists. 2) To assess the state of the art. 3) To discuss the difficulties of experimentation in the field. 4) To define future research. In order to accornplish these objectives, the workshopwas organ ized in three parts with the following thernes: 1) Bacteriological aspects of dentrification
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.
