The Role of Nitrogen in Grassland Productivity PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Role of Nitrogen in Grassland Productivity PDF full book. Access full book title The Role of Nitrogen in Grassland Productivity by David Charles Whitehead. Download full books in PDF and EPUB format.
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: 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 : Fertilizers and manures
Languages : en
Pages : 202
Get Book Here
Book Description
Author: David Charles Whitehead
Publisher:
ISBN:
Category : Meadows
Languages : en
Pages : 202
Get Book Here
Book Description
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:
Publisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 494
Get Book Here
Book Description
Author: David Charles Whitehead
Publisher: Cabi
ISBN:
Category : Nature
Languages : en
Pages : 424
Get Book Here
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: Harold Heady
Publisher: Routledge
ISBN: 0429977476
Category : Social Science
Languages : en
Pages : 555
Get Book Here
Book Description
The science of range management, like many other resource disciplines, has embraced and integrated environmental concerns in the field, the laboratory, and policy. Rangeland Ecology and Management now brings this integrated approach to the classroom in a thoroughly researched, comprehensive, and readable text. The authors discuss the basics of ran
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 164
Get Book Here
Book Description
Author: Y. Ruckebusch
Publisher: Springer Science & Business Media
ISBN: 9401180679
Category : Medical
Languages : en
Pages : 856
Get Book Here
Book Description
Two questions could not be avoided in the avant-propos of this book; (i) what is the importance to man of ruminant livestock, and (ii) what results of practical relevance in the growing mountain of scientific verbiage could be found in the Proceedings of this Symposium. Herbivores are an integral and critical part of the natural ecosystem which must be preserved because of their impact on human welfare. Wh at makes ruminants especially important to man is that they can thrive on fibrous forage and are thus the only viable enterprise over much of the earth's surface where crop growing is impracti cable. They contribute a wide array of products in addition to 50000 000 tonnes ofmeat (1977) and represent a 'capital reserve' that can be drawn upon in times of emergency: milk for example (450000000 tonnes) can make the difference between subsistence and starvation. About 60% of the world's meat and 80 % of the milk are produced by one third of the world ruminant population in the developed regions and as much as 99 % of the power for agriculture is provided by the ruminant population in developing countries. For the next two decades, a probable increase by 30 % for . cattle and buffalo and more than 40 % for sheep and goats is expected by improving health, fertility, nutrition and genetic potential rather than feed resources.
Author: Gilles Lemaire
Publisher: CABI
ISBN: 1845938097
Category : Science
Languages : en
Pages : 305
Get Book Here
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.
