Biological Nitrogen Fixation And Sustainability Of Tropical Agriculture

Author : African Association for Biological Nitrogen Fixation. Conference
Publisher : IITA
Page : 512 pages
File Size : 54,7 Mb
Release : 1992-10-27
Category : Science
ISBN : 0471935603

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Biological Nitrogen Fixation and Sustainability of Tropical Agriculture by African Association for Biological Nitrogen Fixation. Conference Pdf

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 : K. Mulongoy,M. Gueye,D. S. C. Spencer
Publisher : Unknown
Page : 128 pages
File Size : 48,6 Mb
Release : 1992
Category : Electronic
ISBN : OCLC:934833287

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Biological Nitrogen Fixation and Sustainability of Tropical Agriculture by K. Mulongoy,M. Gueye,D. S. C. Spencer Pdf

Author : Yi-Ping Wang,Min Lin,Zhe-Xian Tian,Claudine Elmerich,William E. Newton
Publisher : Springer Science & Business Media
Page : 431 pages
File Size : 51,6 Mb
Release : 2006-01-30
Category : Technology & Engineering
ISBN : 9781402035708

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Biological Nitrogen Fixation, Sustainable Agriculture and the Environment by Yi-Ping Wang,Min Lin,Zhe-Xian Tian,Claudine Elmerich,William E. Newton Pdf

The 14th International Nitrogen Fixation Congress was held in Beijing, China from October 27th through November 1st, 2004. This volume constitutes the proceedings of the Congress and represents a compilation of the presentations by scientists from more than 30 countries around the World who came to Beijing to discuss the progress made since the last Congress and to exchange ideas and information. This year marked the 30th anniversary of the first Congress held in Pullman, Washington, USA, in 1974. Since then, this series of Congresses has met five times in North America (three in the United States and once each in Canada and Mexico), once in South America (Brazil), four times in Western Europe (once each in Spain, The Netherlands, Germany and France), once in Eastern Europe (Russia), and once in Australia; and now for the first time in Asia. China was a most appropriate choice because China is a big country with the largest population in the World, about 1. 3 billion people, which is about 22% of the World’s population. It is traditionally an agricultural country, even though China has only 7% of the available farming land. This situation explains why agriculture and its productivity are major issues for the Chinese people, its government and the scientists in the field.

Author : Felix D. Dakora,Samson B. M. Chimphango,Alex J. Valentine,Claudine Elmerich,William E. Newton
Publisher : Springer Science & Business Media
Page : 353 pages
File Size : 50,8 Mb
Release : 2008-06-26
Category : Science
ISBN : 9781402082528

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Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture by Felix D. Dakora,Samson B. M. Chimphango,Alex J. Valentine,Claudine Elmerich,William E. Newton Pdf

Poverty is a severe problem in Africa, Asia, South America and even in pockets of the developed world. Addressing poverty alleviation via the expanded use of biological nitrogen fixation in agriculture was the theme of the 15th International Congress on Nitrogen Fixation. Because nitrogen-fixation research is multidisciplinary, exploiting its benefits for agriculture and environmental protection has continued to attract research by diverse groups of scientists, including chemists, biochemists, plant physiologists, evolutionary biologists, ecologists, agricultural scientists, extension agents, and inoculant producers. The 15th International Congress on Nitrogen Fixation was held jointly with the 12th International Conference of the African Association for Biological Nitrogen Fixation. This joint Congress was hosted in South Africa at the Cape Town International Conv- tion Centre, 21–26 January 2007, and was attended by about 200 registered participants from 41 countries world-wide. During the Congress, some 100 oral and approximately 80 poster papers were presented. The wide range of topics covered and the theme of the Congress justifies this book’s title, Nitrogen Fixation: Applications to Poverty Alleviation.

Author : J.K. Ladha,T. George,Behzad Ben Bohlool
Publisher : Int. Rice Res. Inst.
Page : 224 pages
File Size : 46,7 Mb
Release : 1992-05-31
Category : Nature
ISBN : 9780792317746

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Biological Nitrogen Fixation for Sustainable Agriculture by J.K. Ladha,T. George,Behzad Ben Bohlool Pdf

Extended Versions of Papers Presented in the Symposium `Role of Biological Nitrogen Fixation in Sustainable Agriculture' at the 13th Congress of Soil Science, Kyoto, Japan, 1990

Author : J.K. Ladha,T. George,C. Bohlool
Publisher : Springer Science & Business Media
Page : 212 pages
File Size : 50,7 Mb
Release : 2013-03-09
Category : Nature
ISBN : 9789401709101

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Biological Nitrogen Fixation for Sustainable Agriculture by J.K. Ladha,T. George,C. Bohlool Pdf

Chemical fertilizers have had a significant impact on food production in the recent past, and are today an indispensable part of modern agriculture. On the other hand, the oil crisis of the 1970s and the current Middle East problems are constant reminders of the vulnerability of our fossil fuel dependent agriculture. There are vast areas of the developing world where N fertilizers are neither available nor affordable and, in most of these countries, balance of payment problems have resulted in the removal of N fertilizer subsidies. The external costs of environmental degradation and human health far exceed economic concerns. Input efficiency of N fertilizer is one of the lowest and, in turn, contributes substantially to environmental pollution. Nitrate in ground and surface waters and the threat to the stability of the ozone layer from gaseous oxides of nitrogen are major health and environmental concerns. The removal of large quantities of crop produce from the land also depletes soil of its native N reserves. Another concern is the decline in crop yields under continuous use of N fertilizers. These economic, environmental and production considerations dictate that biological alternatives which can augment, and in some cases replace, N fertilizers must be exploited. Long-term sustainability of agricultural systems must rely on the use and effective management of internal resources. The process of biological nitrogen fixation offers and economically attractive and ecologically sound means of reducing external nitrogen input and improving the quality and quantity of internal resources. In this book, we outline sustainability issues that dictate an increased use of biological nitrogen fixation and the constraints on its optimal use in agriculture.

Author : J.K. Ladha,M.B. Peoples
Publisher : Int. Rice Res. Inst.
Page : 300 pages
File Size : 51,8 Mb
Release : 1995-09-30
Category : Nature
ISBN : 9780792334132

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Management of Biological Nitrogen Fixation for the Development of More Productive and Sustainable Agricultural Systems by J.K. Ladha,M.B. Peoples Pdf

Reprinted from Plant and Soil, v.174, nos.1-2 (1995), this volume is devoted to discussions on the role of biological nitrogen fixation (BNF) in agricultural sustainability. Papers presented on BNF in crop forage and tree legumes are augmented with discussion of integrated farming systems involving BNF, soil and N management, and recycling of legume residues. BNF by non-legumes is discussed and attempts to transform cereals into nodulating plants are critically reviewed. Also described are advances in the development of new methodologies to understand symbiotic interactions and to assess N-2 fixation in the field; means of enhancing BNF through plant and soil management; breeding and selection; problems encountered in exploiting BNF under farmers' field conditions; and promising approaches to improve BNF exploitation. Lacks a subject index. Annotation copyright by Book News, Inc., Portland, OR

Author : Rachid Serraj
Publisher : CRC Press
Page : 392 pages
File Size : 47,6 Mb
Release : 2004
Category : Technology & Engineering
ISBN : STANFORD:36105114369759

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Symbiotic Nitrogen Fixation by Rachid Serraj Pdf

The International Workshop on Biological Nitrogen Fixation for Increased Crop Productivity, Enhanced Human Health and Sustained Soil Fertility was held in June 2002 at ENSAM-INRA, Montpellier, France. The main goal of the workshop was to define research strategies for a Challenge Program initiative on Biological Nitrogen Fixation, and develop a pre-proposal based on the concept note submitted and approved by the CGIAR iSC. More than 35 participants from various scientific disciplines, research institutions and from four different continents (Africa, Asia, Americas and Europe) attended the workshop. This book, based on the proceedings of the workshop, takes a holistic approach to harnessing legume BNF technologies, starting from a socioeconomic perspective, and progressing to agronomic and genetic options, and bringing together innovative aspects and participatory research strategies.

Author : Andrzej B. Legocki,Hermann Bothe,A. Pühler
Publisher : Springer Science & Business Media
Page : 352 pages
File Size : 42,8 Mb
Release : 1997
Category : Nature
ISBN : 3540620567

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Biological Fixation of Nitrogen for Ecology and Sustainable Agriculture by Andrzej B. Legocki,Hermann Bothe,A. Pühler Pdf

Structural chemistry and biochemistry of nitrogenase; Signal perception, transduction and cell cycle genes in nodulation; Plant genes involved in nodulation; Bacterium - plant surface interaction; Molecular microbial ecology; Nitrogen fixation systems; Nitrogen fixation in sustainable agriculture; Carbon-nitrogen metabolism in symbiotic systems; Oxygen regulation in nitrogen fixation; Model plants for nitrogen fixation and legume genetics; Coevolution of symbiotic systems.

Author : Dietrich Werner,William E. Newton
Publisher : Springer Science & Business Media
Page : 361 pages
File Size : 47,6 Mb
Release : 2006-01-20
Category : Technology & Engineering
ISBN : 9781402035449

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Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment by Dietrich Werner,William E. Newton Pdf

Sustainability has a major part to play in the global challenge of continued development of regions, countries, and continents all around the World and biological nitrogen fixation has a key role in this process. This volume begins with chapters specifically addressing crops of major global importance, such as soybeans, rice, and sugar cane. It continues with a second important focus, agroforestry, and describes the use and promise of both legume trees with their rhizobial symbionts and other nitrogen-fixing trees with their actinorhizal colonization. An over-arching theme of all chapters is the interaction of the plants and trees with microbes and this theme allows other aspects of soil microbiology, such as interactions with arbuscular mycorrhizal fungi and the impact of soil-stress factors on biological nitrogen fixation, to be addressed. Furthermore, a link to basic science occurs through the inclusion of chapters describing the biogeochemically important nitrogen cycle and its key relationships among nitrogen fixation, nitrification, and denitrification. The volume then provides an up-to-date view of the production of microbial inocula, especially those for legume crops.

Author : Andrzej Legocki,Hermann Bothe,Alfred Pühler
Publisher : Springer Science & Business Media
Page : 321 pages
File Size : 55,6 Mb
Release : 2013-06-29
Category : Science
ISBN : 9783642591129

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Biological Fixation of Nitrogen for Ecology and Sustainable Agriculture by Andrzej Legocki,Hermann Bothe,Alfred Pühler Pdf

Biological nitrogen fixation (BNF) - the conversion of molecular nitrogen into ammonia - is one of the most important reactions in ecology and agriculture. It is performed exclusively by microbes (prokaryotes) that live in symbiosis with plants. This book summarizes the latest research on this reaction, the participating microbes and the genetics of how their relevant genes could be transferred into the plants. In the light of a more sustainable and less ecologically damaging agriculture, this is becoming an increasingly pressing issue.

Author : J. K. Ladha,T. George,C. Bohlool
Publisher : Unknown
Page : 228 pages
File Size : 45,8 Mb
Release : 2014-01-15
Category : Electronic
ISBN : 9401709114

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Biological Nitrogen Fixation for Sustainable Agriculture by J. K. Ladha,T. George,C. Bohlool Pdf

Author : K. E. Giller
Publisher : CABI
Page : 443 pages
File Size : 52,9 Mb
Release : 2001
Category : Science
ISBN : 9781845933043

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Nitrogen Fixation in Tropical Cropping Systems by K. E. Giller Pdf

Nitrogen fixation by leguminous plants is especially important when farmers are trying to minimise fertilizer use for cost or environmental reasons. This second edition of the highly successful book, first published in 1991, contains thoroughly updated and revised material on the theory and practice of nitrogen fixation in tropical cropping systems.

Author : A. Ayanaba,P. J. Dart
Publisher : John Wiley & Sons
Page : 400 pages
File Size : 53,9 Mb
Release : 1977
Category : Technology & Engineering
ISBN : CORNELL:31924000572663

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Biological Nitrogen Fixation in Farming Systems of the Tropics by A. Ayanaba,P. J. Dart Pdf

The symposium's objectives included an appraisal of the most recent studies relating to microbiological nitrogen fixation in tropical soils, consideration of aways and means of improving management of soils and crops in tropical farming systems to increase biological nitrogen fixation, of exploring ways of concurrently improving both legumes and other hosts and their symbionts to enhance nitrogen fixation, and of recommending the research needed and means of collaborating in the research effort.

Author : Patrice Dion
Publisher : Springer Science & Business Media
Page : 322 pages
File Size : 50,9 Mb
Release : 2010-02-04
Category : Technology & Engineering
ISBN : 9783642050763

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Soil Biology and Agriculture in the Tropics by Patrice Dion Pdf

The relationships between soils, microbes and humans are of crucial relevance in the tropics, where plant stress and microbial activity are exacerbated. This volume of Soil Biology presents the living component of tropical soils, showing how it is shaped by environmental conditions and emphasizing its dramatic impact on human survival and well-being. Following an introduction to the specificities of tropical soils and of their microbial communities, the biological aspects of soil management are examined, dealing with land use change, conservation and slash-and-burn agriculture, the restoration of hot deserts, agroforestry and paddy rice cultivation. As they are of particular relevance for tropical agriculture, symbioses of plants and microbes are thoroughly covered, as are the biodegradation of pesticides and health risks associated with wastewater irrigation. Lastly, traditional soil knowledge is discussed as a key to our sustainable presence in this world.