Agriculture And The Nitrogen Cycle

Author : Arvin Mosier,J. Keith Syers,John R. Freney
Publisher : Island Press
Page : 344 pages
File Size : 41,7 Mb
Release : 2013-04-10
Category : Science
ISBN : 9781597267434

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Agriculture and the Nitrogen Cycle by Arvin Mosier,J. Keith Syers,John R. Freney Pdf

Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very uneven, with some areas subject to nitrogen pollution and others suffering from reduced soil fertility, diminished crop production, and other consequences of inadequate supply. Agriculture and the Nitrogen Cycle provides a global assessment of the role of nitrogen fertilizer in the nitrogen cycle. The focus of the book is regional, emphasizing the need to maintain food and fiber production while minimizing environmental impacts where fertilizer is abundant, and the need to enhance fertilizer utilization in systems where nitrogen is limited. The book is derived from a workshop held by the Scientific Committee on Problems of the Environment (SCOPE) in Kampala, Uganda, that brought together the world's leading scientists to examine and discuss the nitrogen cycle and related problems. It contains an overview chapter that summarizes the group's findings, four chapters on cross-cutting issues, and thirteen background chapters. The book offers a unique synthesis and provides an up-to-date, broad perspective on the issues of nitrogen fertilizer in food production and the interaction of nitrogen and the environment.

Author : Dietrich Werner,William E. Newton
Publisher : Springer Science & Business Media
Page : 361 pages
File Size : 49,6 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 : James Stuart Schepers,William Raun
Publisher : ASA-CSSA-SSSA
Page : 994 pages
File Size : 53,6 Mb
Release : 2008
Category : Technology & Engineering
ISBN : 0891181644

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Nitrogen in Agricultural Systems by James Stuart Schepers,William Raun Pdf

Review of the principles and management implications related to nitrogen in the soil-plant-water system.

Author : Y. P. Abrol,N. Raghuram,M. S. Sachdev
Publisher : I. K. International Pvt Ltd
Page : 553 pages
File Size : 51,9 Mb
Release : 2007
Category : Political Science
ISBN : 9788189866334

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Agricultural Nitrogen Use and Its Environmental Implications by Y. P. Abrol,N. Raghuram,M. S. Sachdev Pdf

Nitrogen fertilizers are the inescapable necessity to enhance agricultural production and to sustain food security. However, their inefficient use accrues from inherent limitations of the crop plants as well as the manner in which N fertilizers are formulated, applied and managed. Excessive accumulation of N in the environment leads to soil acidification, pollution of groundwater and eutrophication of surface water, posing a public health problem as well as ecosystem imbalance. Moreover, the ozone layer depletion and greenhouse effects of NOx gases have global implications. Agricultural Nitrogen Use: Environmental Implications provides a comprehensive, interdisciplinary description of problems related to the efficient use of nitrogen in agriculture, in the overall context of the nitrogen cycle, its environmental and human health implications, as well as various approaches to improve N use efficiency. The book is presented in six sections: N Use, Flows and Cycling in Agricultural Systems; N Use Efficiency in Crop Ecosystems; Management Options and Strategies for Enhancing N Use Efficiency; Plant Physiological and Molecular Aspects of Enhancing N Use Efficiency; Role of Legumes and Biofertilizers in Agricultural N Economy; and Environmental and Human Health Implications.

Author : J.L. Hatfield,R.F. Follett
Publisher : Elsevier
Page : 720 pages
File Size : 41,8 Mb
Release : 2008-08-28
Category : Technology & Engineering
ISBN : 0080569897

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Nitrogen in the Environment by J.L. Hatfield,R.F. Follett Pdf

Nitrogen is one of the most critical elements for all life forms. In agricultural systems it is essential for the production of crops for feed, food, and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Nitrogen in the Environment provides a wholistic perspective and comprehensive treatment of nitrogen. The scope of this book is diverse covering a range of topics and issues related to furthering our understanding of nitrogen in the environment at farm and national levels. Issues of nitrogen from its effects on crops and human nutrition to nitrogen in ground water, watersheds, streams, rivers, and coastal marine environments are discussed to provide a broad view of the problem and support scientists, researchers, and engineers in formulating comprehensive solutions. * The only source which presents an international, wholistic perspective of the effects of nitrogen in the environment with worldwide mitigation practices * Provides details on how to improve the quality of the environment by analyzing the development of emerging technologies * Develops strategies to be used by soil scientists, agronomists, hydrologists, and geophysicists for broad scale improvement of nitrogen efficiency

Author : G. Philip Robertson,R. Herrera,T. Rosswall
Publisher : Springer Science & Business Media
Page : 414 pages
File Size : 55,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400976399

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Nitrogen Cycling in Ecosystems of Latin America and the Caribbean by G. Philip Robertson,R. Herrera,T. Rosswall Pdf

The large and rapidly expanding body ofliterature related to nitrogen cycling in both managed and native terrestrial ecosystems reflects the importance accorded to the behaviour of this vital and often limiting nutrient. Research at the organism, ecosystem and landscape levels commonly addresses questions concerning nitrogen acquisition, internal cycling and retention. Goals for this research include increased agricultural productivity and a better understanding of human impact on local, regional and global nitrogen cycles. Nitrogen cycle research in tropical regions has a long and distinguished history. Research on different aspects of nitrogen cycling in ecosystems of the tropics has been carried out in many regions. In relatively few instances has there, however, been a focus on the biogeochemical cycles at the ecosystem level. The meeting resulting in this volume was an attempt to bring together existing information on nitrogen cycling in ecosystems of Latin America and the Caribbean and discuss this in an ecosystem context.

Author : R.F. Follett,J.L. Hatfield
Publisher : Gulf Professional Publishing
Page : 538 pages
File Size : 55,5 Mb
Release : 2001-12-03
Category : Science
ISBN : 9780080537566

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Nitrogen in the Environment: Sources, Problems and Management by R.F. Follett,J.L. Hatfield Pdf

Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.

Author : Ronald F. Follett
Publisher : Unknown
Page : 38 pages
File Size : 49,7 Mb
Release : 1995
Category : Nitrogen cycle
ISBN : CORNELL:31924101596041

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Fate and Transport of Nutrients by Ronald F. Follett Pdf

Author : Association internationale de l'industrie des engrais. Task force on reactive nitrogen,International Fertilizer Industry Association. Task Force on Reactive Nitrogen
Publisher : Unknown
Page : 53 pages
File Size : 45,7 Mb
Release : 2007
Category : Nitrogen cycle
ISBN : 2952313911

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Sustainable Management of the Nitrogen Cycle in Agriculture and Mitigation of Reactive Nitrogen Side Effects by Association internationale de l'industrie des engrais. Task force on reactive nitrogen,International Fertilizer Industry Association. Task Force on Reactive Nitrogen Pdf

Author : G. J. Leigh
Publisher : Oxford University Press
Page : 256 pages
File Size : 54,7 Mb
Release : 2004-08-19
Category : Science
ISBN : 9780190290153

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The World's Greatest Fix by G. J. Leigh Pdf

In the tradition of Jared Diamond's Guns, Germs, and Steel, this gives the very early history of how human ingenuity overcame the risk of famine through productive agriculture. Starting with a layman's guide to the chemistry of nitrogen fixation, the book goes on to show how humans emerged from nomadic lifestyles and began developing towns and settlements. When they for the first time began planting the same fields year after year, they noticed quickly the need to ensure soil fertility. But how? The method they came up with is still in use to this day.

Author : Thomas P. Tomich,Sonja B. Brodt,Randy A. Dahlgren,Kate M. Scow
Publisher : Univ of California Press
Page : 340 pages
File Size : 50,9 Mb
Release : 2016-06-14
Category : Science
ISBN : 9780520287129

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The California Nitrogen Assessment by Thomas P. Tomich,Sonja B. Brodt,Randy A. Dahlgren,Kate M. Scow Pdf

"Collaborating Institutions: Agricultural Sustainability Institute at UC Davis, UC ANR Sustainable Agriculture Research and Education Program, UC ANR Kearney Foundation of Soil Science, UC ANR Agricultural Issues Center, UC ANR California Institute for Water Resources, Water Science and Policy Center at UC Riverside."

Author : Janet I. Sprent
Publisher : Cambridge University Press
Page : 164 pages
File Size : 41,9 Mb
Release : 1987-12-10
Category : Science
ISBN : 0521310520

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The Ecology of the Nitrogen Cycle by Janet I. Sprent Pdf

Many people learn the rudiments of the nitrogen cycle while at school, but the details of the various processes in the cycle are still not widely understood. Some of them are of great current interest, such as the use of nitrogen fixing crops to feed an increasing world population and the problems of pollution of groundwaters by nitrates. Denitrification (forming nitrogen gas) as a way of getting rid of waste from human and intensively farmed animals. This book describes the general processes of the nitrogen cycle, then gives examples of how the cycle is modified under particular ecological and geographical conditions. These examples are drawn from all the major areas of the world, and the impact of man via agriculture, forestry and fuel combustion is discussed. Numerous references are included. The book provides a background for all those whose specialist interests interact with nitrogen cycling, whether they are involved in research or have responsibility for managing the environment.

Author : D. Werner
Publisher : Unknown
Page : 347 pages
File Size : 50,6 Mb
Release : 2005
Category : Electronic
ISBN : OCLC:709477932

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Nitrogen Fixation in Agriculture, Forestry, Ecology, and the Environment by D. Werner Pdf

Author : L. Fred Welch
Publisher : Unknown
Page : 62 pages
File Size : 49,8 Mb
Release : 1979
Category : Crops and nitrogen
ISBN : OSU:32435008456097

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Nitrogen Use and Behavior in Crop Production by L. Fred Welch Pdf

Most plants absorbmore nitrogen than any other nutrient. Because the amount needed is so large and easily be lost from many soils, nitrogen is usually the most limiting nutrient for plant growth. Although about 79 percent of the atmosphere is nitrogen, only nitrogen-fixingplants such as legumeswith their associated bacteria are able to use this abundant source. The nonleguminous grain crops must receive supplemental nitrogen to produce satisfactory yields. Until the last few decades the supply of available nitrogen in the soil was increased primarily by legumes and manure. These sources should be used when economically feasible, but many important grain-producing areas of the world must now rely on commercial fertilizer nitrogen. For economic reasons researchers and growers have been interested for many years in improving yields from each unit of nitrogen. Recently, however, the efficient use of nitrogen has become an environmental issue as well, because high nitrate concentrations in water may be harmful to humans, especiali infants, and to livestock. If plants absorb more of the addedfertilizer nitrogen, then less is likely to leach from fields into drinking water. Improving nitrogen efficiency has also become crucial in order to conserve dwinling supplies of natural gas, which is used in large quantities to manufacture nitrogenfertilizers.

Author : Jesus Gonzalez-Lopez,Alejandro Gonzalez-Martinez
Publisher : CRC Press
Page : 484 pages
File Size : 49,5 Mb
Release : 2021-07-23
Category : Technology & Engineering
ISBN : 9781000352313

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Nitrogen Cycle by Jesus Gonzalez-Lopez,Alejandro Gonzalez-Martinez Pdf

Anthropogenic activity has clearly altered the N cycle contributing (among other factors) to climate change. This book aims to provide new biotechnological approach representing innovative strategies to solve specific problems related to the imbalance originating in the N cycle. Aspects such as new conceptions in agriculture, wastewater treatment, and greenhouse gas emissions are discussed in this book with a multidisciplinary vision. A team of international authors with wide experience have contributed up-to-date reviews, highlighting scientific principles and their environmental importance and integrating different biotechnological processes in environmental technology.