The Role of Nitrogen in Grassland Productivity PDF Download
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Author: David Charles Whitehead
Publisher: CABI Publishing
ISBN:
Category : Science
Languages : en
Pages : 224
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Book Description
Nitrogen transformations in grassland ecosystems. The nitrogen cycle and sources of nitrogen. Uptake and assimilation of nitrogen by grass. Symbiotic tixation by legumes. Transfer of symbiotically fixaed nitrogen to grass. Consumption of nitrogen by ruminants and its removal in livestock products. Return of nitrogen in animal excreta. Non-symbiotic nitrogen in soil organic matter. Release of mineral nitrogen from plant and animal residues and soil organic matter. Nitrification, and immobilization in non-exchangeable form, of ammonium nitrogen. Loss of nitrogen by leaching. Gaseous losses of nitrogen. The yield response of grass swards to fertilizer nitrogen.Effects of fertilizer nitrogen on composition and quality of herbage.
Author: David Charles Whitehead
Publisher: CABI Publishing
ISBN:
Category : Science
Languages : en
Pages : 224
Get Book Here
Book Description
Nitrogen transformations in grassland ecosystems. The nitrogen cycle and sources of nitrogen. Uptake and assimilation of nitrogen by grass. Symbiotic tixation by legumes. Transfer of symbiotically fixaed nitrogen to grass. Consumption of nitrogen by ruminants and its removal in livestock products. Return of nitrogen in animal excreta. Non-symbiotic nitrogen in soil organic matter. Release of mineral nitrogen from plant and animal residues and soil organic matter. Nitrification, and immobilization in non-exchangeable form, of ammonium nitrogen. Loss of nitrogen by leaching. Gaseous losses of nitrogen. The yield response of grass swards to fertilizer nitrogen.Effects of fertilizer nitrogen on composition and quality of herbage.
Author: D. C. Whitehead
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Nitrogen transformations in grassland ecosystems. The yield response of grass swards to fertilizer nitrogen. Effects of fertilizer nitrogen on the composition and quality of herbage.
Author:
Publisher:
ISBN: 9780853107651
Category :
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: D. C. Whitehead
Publisher:
ISBN:
Category : Fertilizers and manures
Languages : en
Pages : 202
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Book Description
Author: W.H. Prins
Publisher:
ISBN: 9789022200735
Category :
Languages : en
Pages : 171
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Book Description
Author: Gilles Lemaire
Publisher: CABI
ISBN: 1845938097
Category : Science
Languages : en
Pages : 305
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Book Description
This book contains 28 chapters with emphasis on the interactive nature of the relationships between the soil, plant, animal and environmental components of grassland systems, both natural and managed. It analyses the present knowledge and the future trends of research for combining the classical view of grasslands, as a resource for secure feeding of an increasing human population, with the more recent perspective of the contribution of grasslands to the mitigation of environmental impacts and biodiversity erosion as consequences of human society activities. The chapters are organized within five sections dealing with the different functions and the main ecosystem services expected from grasslands: (i) domestic herbivore feeding and animal production; (ii) the regulation of biogeochemical cycles and its consequences for the environment; (iii) dynamics of biodiversity hosted by grasslands; (iv) integration of grasslands within sustainable animal production systems; and (v) interactions of grassland areas with other land use systems at the landscape level.
Author: J. Tinsley
Publisher:
ISBN: 9789400961029
Category : Soil biology
Languages : en
Pages : 438
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Book Description
Author: Arvin Mosier
Publisher: Island Press
ISBN: 1597267430
Category : Science
Languages : en
Pages : 320
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Book Description
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: Gilles Lemaire
Publisher: CABI
ISBN: 9781845939007
Category : Electronic books
Languages : en
Pages : 287
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Book Description
Grassland ecosystems are deeply affected by human activities and need appropriate management to optimise trade-offs between ecosystem functions and services. Until now they have mainly been analysed as agro-ecosystems for animal production but this book looks beyond the role of grassland as a feeding ground, and evaluates other important processes such as carbon sequestration in soils, greenhouse gas regulation and biodiversity protection. This authoritative volume expertly highlights the need for an immediate balance between agriculture and ecological management for sustainability in the futu.
