The Influence of Management and Nitrogen Application on the Botanical Composition of Grassland PDF Download
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Author: G. C. Ennik
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
Author: G. C. Ennik
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
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Book Description
Author: R. W. Snaydon
Publisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 308
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Book Description
The productivity of temperate grasslands; The productivity of mediterranean and semi-arid grasslands; Physiological aspects of pasture growth; Modelling pasture growth; Effects of nitrogen fertilizer; Effects of grazing and cutting; The botanical composition of pastures; Beef production from managed grasslands; Milk production from managed grasslands; Sheep production from managed grasslands; Other domesticated animals; Grazing behaviour; Plant factors affecting intake; Minerals in pastures and supplements; Reproduction, lifespan and efficiency of production; Nitrogen cycling in managed grasslands; Phosphorus cycling in managed grasslands; Return fo nutrients by animals; Nitrogen fixation in managed grasslands; Nitrogen losses from managed grassland; Run-off and drainage from grassland catchments; Economic considerations in the prodution and utilization of herbage; Stocking rate; Fertilizer inputs and botanical composition; Herbage conservation and supplements.
Author: Dinand Marius de Vries
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: David Charles Whitehead
Publisher: Cabi
ISBN:
Category : Nature
Languages : en
Pages : 424
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Book Description
Grasses: Uptake of nitogen and effects on morphology and physiology; Legumes: biological nitogen fixation and interaction with grasses; Consumption, digestion and excretion of nitrogen by ruminant livestock; Amounts, sources and fractionation of organic nitrogen in soils; Mineralization, immobilization and availability of nitrogen in soils; Leaching of nitrogen from soils; Volatization of ammonia; Volatilization of gaseous nitrogen and nitrogen oxides through denitrification and nitrification; Use of fertilizer nitrogen and slurry nitrogen on grassland: recovery and response; Response to fertilizer nitrogen: influence of sward type, pattern of fertilizer application and method of harvesting; Response to fertilizer nitrogen: influence of weather, seasonal factors and soil type; Response to fertilizer nitrogen: influence of type of fertilizer and supplies of other nutrients; Influence of fertilizer nitrogen on the composition and nutritional quality of grassland herbage; Nitrogen balances in contrasting grassland systems.
Author: European Grassland Federation
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 288
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Book Description
Author:
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 402
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Book Description
Author: Claire C. Vos
Publisher: Springer Science & Business Media
ISBN: 9401123187
Category : Science
Languages : en
Pages : 391
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Book Description
This series presents studies that have used the paradigm of landscape ecology. Other approaches, both to landscape and landscape ecology are common, but in the last decade landscape ecology has become distinct from its predecessors and its contemporaries. Landscape ecol ogy addresses the relationships among spatial patterns, temporal pat terns and ecological processes. The effect of spatial configurations on ecological processes is fundamental. When human activity is an import ant variable affecting those relationships, landscape ecology includes it. Spatial and temporal scales are as large as needed for comprehension of system processes and the mosaic included may be very heteroge neous. Intellectual utility and applicability of results are valued equally. The International Association for Landscape Ecology sponsors this series of studies in order to introduce and disseminate some of the new knowledge that is being produced by this exciting new environmental science. Gray Merriam Ottawa, Canada Preface In Europe, during the seventies, landscape ecology emerged as a fusion of the spatial approach of geographers and the functional approach of ecologists. The latter focused on ecosystem functioning, regarding eco systems as homogeneous, almost abstract units in space, with input and output of energy and matter to and from the undefined surroundings.
Author: D.A. McGilloway
Publisher: BRILL
ISBN: 9086865518
Category : Nature
Languages : en
Pages : 429
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Book Description
"The concept of grasslands as a global resource is not new. Indeed many recognised authorities have been canvassing for a global approach to understanding, managing and exploiting this resource for many years. This is the first book that gathers together leading experts from around the world to outline our current understanding of this complex ecosystem, the ways in which it can be enhanced and utilised and where the research challenges are for the future. The following themes unite the book: - Efficient production from grassland; - Grassland and the environment; - Delivering the benefits from grassland. The reader is given an in depth understanding of the biology of the system and how grasslands are crucial for soil stabilisation and water quality. Secondly, much attention is given to how grasslands offer the possibility of increasing food supply and income generation, which is a hugely important but often ignored facet in today’s climate of extensification and biodiversity. Current advances in the grassland sciences have a proven potential to promote the economic development and environmental stability of regions, nations and peoples, particularly in some of the most resource-limited areas of the world. Approaches for achieving the most effective development and adoption of new technology are reviewed."
Author: R. W. Snaydon
Publisher:
ISBN:
Category : Grassland ecology
Languages : en
Pages : 308
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Book Description
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.
