Nutrient Elements in Grassland PDF Download
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Author: D. C. Whitehead
Publisher: CABI
ISBN: 9780851999388
Category : Medical
Languages : en
Pages : 392
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Book Description
This book is an essential reference source covering the chemical elements that are nutrients for plants or grazing animals. It deals with the concentrations and transformations of these elements in soils, grassland plants, and ruminant animals, particularly cattle and sheep. For each element, the following data are given: forms occurring in soil, factors that affect availability and concentration, uptake and distribution in grassland plants, role in animal nutrition, amounts and forms excreted by grazing animals, and concentrations needed by ruminant animals.
Author: D. C. Whitehead
Publisher: CABI
ISBN: 9780851999388
Category : Medical
Languages : en
Pages : 392
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Book Description
This book is an essential reference source covering the chemical elements that are nutrients for plants or grazing animals. It deals with the concentrations and transformations of these elements in soils, grassland plants, and ruminant animals, particularly cattle and sheep. For each element, the following data are given: forms occurring in soil, factors that affect availability and concentration, uptake and distribution in grassland plants, role in animal nutrition, amounts and forms excreted by grazing animals, and concentrations needed by ruminant animals.
Author: S.C. Jarvis
Publisher: BRILL
ISBN: 9086865569
Category : Science
Languages : en
Pages : 116
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Book Description
This book brings together two aspects of grassland soil management which, by and large, have hitherto been considered separately. Issues related to nutrient cycling and soil quality have dominated research directed towards aiding broad and local scale policy issues for improving land use. Protecting the environment and maintaining/preserving natural habitats and biodiversity, tend to be considered separately. In this book we attempt to bring what are, in reality, inseparable aspects of grassland soil characteristics together and consider physical, chemical and biological components of soils, their interrelations and the way that they influence nutrient transformations and flows and soil quality. Keynote discussions will be lead by the following experts: Physical constraints and drivers: Professor Iain Young, Abertay University, Scotland Biological aspects: Professor Tim Seastedt, University of Colorado at Boulder, USA Chemical aspects: Dr Mike Beare from Crop and Food, Research, Lincoln New Zealand Over-arching synopsis of these issues: Professor Richard Bardgett, Lancaster University, UK. Bringing together international expertise and experience does much to progress understanding and points ways forward to maintain what is a base resource, our soils, whether it be for production targets, environmental benefit or for maintenance of natural ecosystems for future generations. This volume is useful to all those interested in soils and their function, and all grassland managers, whether their aims are directed at producing food, forage or fibre of sustainable quantity and quality or at maintaining, restoring or encouraging above and below ground biodiversity. The international perspective on this is very important so that experiences in wide ranging circumstances can be cross-referenced and used to the advantage of all.
Author: Kenneth J. Moore
Publisher: John Wiley & Sons
ISBN: 1119436613
Category : Technology & Engineering
Languages : en
Pages : 968
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Book Description
Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
Author: Brian S. Coulter
Publisher:
ISBN: 9781841702469
Category : Pastures
Languages : en
Pages : 67
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Book Description
Author: W. G. Braakhekke
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 180
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Book Description
Competition experiments in the field show that Plantago lanceolata and Chrysanthemum leucanthemum occupy partly different niches in time. The yield of P. lanceolata decreased after two years, probably by senescence and auto-inhibition. The reaction of C. leucanthemum to this caused high Relative Yield Total (RYT), but there was no equilibrium.
Author: Jon Newton
Publisher:
ISBN:
Category : Grasses
Languages : en
Pages : 138
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Book Description
Unique guide written by a recognised authority on the subject. Grass is the most important feed for cattle and sheep. The central theme is that organic grassland can be a productive source of nutrients for livestock provided it is managed correctly. Essential for organic farmers and for those converting to organic systems of production.
Author: Jian Feng Ma
Publisher: Elsevier
ISBN: 0080525768
Category : Technology & Engineering
Languages : en
Pages : 294
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Book Description
Silicon (Si) plays a significant role in the resistance of plants to multiple stresses including biotic and abiotic stresses. Silicon is also the only element that does not damage plants when accumulated in excess. However, the contribution of Si to plant growth has been largely ignored due to its universal existence in the earth's crust. From numerous intensive studies on Si, initiated in Japan about 80 years ago, Japanese scientists realized that Si was important for the healthy growth of rice and for stability of rice production. In a worldwide first, silicon was recognized as a valuable fertilizer in Japan. The beneficial effects of Si on rice growth in particular, are largely attributable to the characteristics of a silica gel that is accumulated on the epidermal tissues in rice. These effects are expressed most clearly under high-density cultivation systems with heavy applications of nitrogen. Si is therefore recognized now as an ''agronomically essential element'' in Japan.Recently, Si has become globally important because it generates resistance in many plants to diseases and pests, and may contribute to reduced rates of application of pesticides and fungicides. Silicon is also now considered as an environment-friendly element. The achievements of Si research in Japan are introduced in this book, in relation to soils, fertilizers and plant nutrition.
Author: Mark R. Stromberg
Publisher: Univ of California Press
ISBN: 9780520252202
Category : Nature
Languages : en
Pages : 416
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Book Description
"This highly synthetic and scholarly work brings together new and important scientific contributions by leading experts on a rich diversity of topics concerning the history, ecology, and conservation of California's endangered grasslands. The editors and authors have succeeded admirably in drawing from a great wealth of recent research to produce a widely accessible and compelling, state-of-the-art treatment of this fascinating subject. Anyone interested in Californian biodiversity or grassland ecosystems in general will find this book to be an invaluable resource and a major inspiration for further research, management, and restoration efforts."—Bruce G. Baldwin, W. L. Jepson Professor and Curator, UC Berkeley "Grasses and grasslands are among the most important elements of the California landscape. This is their book, embodying the kind of integrated view needed for all ecological communities in California. Approaches ranging across an incredibly broad spectrum -- paleontology and human history; basic science and practical management techniques; systematics, community ecology, physiology, and genetics; physical factors such as water, soil nutrients, atmospherics, and fire; biological factors such as competition, symbiosis, and grazing -- are nicely tied together due to careful editorial work. This is an indispensable reference for everyone interested in the California environment."—Brent Mishler, Director of the University & Jepson Herbaria and Professor of Integrative Biology, UC Berkeley "The structure and function of California grasslands have intrigued ecologists for decades. The editors of this volume have assembled a comprehensive set of reviews by a group of outstanding authors on the natural history, structure, management, and restoration of this economically and ecologically important ecosystem."—Scott L. Collins, Professor of Biology, University of New Mexico
Author: Robert W. Sterner
Publisher: Princeton University Press
ISBN: 1400885698
Category : Science
Languages : en
Pages : 465
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Book Description
All life is chemical. That fact underpins the developing field of ecological stoichiometry, the study of the balance of chemical elements in ecological interactions. This long-awaited book brings this field into its own as a unifying force in ecology and evolution. Synthesizing a wide range of knowledge, Robert Sterner and Jim Elser show how an understanding of the biochemical deployment of elements in organisms from microbes to metazoa provides the key to making sense of both aquatic and terrestrial ecosystems. After summarizing the chemistry of elements and their relative abundance in Earth's environment, the authors proceed along a line of increasing complexity and scale from molecules to cells, individuals, populations, communities, and ecosystems. The book examines fundamental chemical constraints on ecological phenomena such as competition, herbivory, symbiosis, energy flow in food webs, and organic matter sequestration. In accessible prose and with clear mathematical models, the authors show how ecological stoichiometry can illuminate diverse fields of study, from metabolism to global change. Set to be a classic in the field, Ecological Stoichiometry is an indispensable resource for researchers, instructors, and students of ecology, evolution, physiology, and biogeochemistry. From the foreword by Peter Vitousek: ? "[T]his book represents a significant milestone in the history of ecology. . . . Love it or argue with it--and I do both--most ecologists will be influenced by the framework developed in this book. . . . There are points to question here, and many more to test . . . And if we are both lucky and good, this questioning and testing will advance our field beyond the level achieved in this book. I can't wait to get on with it."
Author: Wilfried Ehlers
Publisher: Cabi
ISBN: 9781780643823
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
"Meagre water supply causes severe problems in the growth of plants, which rely on sufficient water transmitted by the soil to meet their needs. This new edition of Water Dynamics in Plant Production describes the basic scientific principles of water transport in the soil-plant-atmosphere continuum, explains the linkage between transpirational water use and dry matter production paying particular attention to the various agronomic strategies for adaptation to climate-driven limitations of water resources"--Publisher's website.
