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Author : W. V. Soares
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (78 download)
Download or read book Adubação fosfatada para manutenção de pastagem de Brachiaria decumbens no Cerrado written by W. V. Soares and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marcelo Larramendy
Publisher : BoD – Books on Demand
ISBN 13 : 9535124498
Total Pages : 386 pages
Book Rating : 4.5/5 (351 download)
Download or read book Organic Fertilizers written by Marcelo Larramendy and published by BoD – Books on Demand. This book was released on 2016-06-30 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, Organic Fertilizers - From Basic Concepts to Applied Outcomes, is intended to provide an overview of emerging researchable issues related to the use of organic fertilizers that highlight recent research activities in applied organic fertilizers toward a sustainable agriculture and environment. We aimed to compile information from a diversity of sources into a single volume to give some real examples extending the concepts in organic fertilizers that may stimulate new research ideas and trends in the relevant fields.
Author : Centro Internacional de Agricultura Tropical
Publisher : CIAT
ISBN 13 : 9789589183458
Total Pages : 252 pages
Book Rating : 4.1/5 (834 download)
Download or read book Pastures for the Tropical Lowlands written by Centro Internacional de Agricultura Tropical and published by CIAT. This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; Tropical pastures target environments; Regional germplasm evaluation: A portfolio of germplasm options for the major ecosystems of tropical amarica; Methodological challenges in pasture research; Germplasme case study: Brachiaria species; Germplasm case study: Arachis pintoi; Integrating the native savanna resource with improved pastures; Experiences at the interface of research and development with tropical pastures; The role of pastures in production systems; Soil-plant factors and prodesses affscting productivity in ley farming; tropical pastures program: bibliobraphy of publictions, 1985-1991; Acronyms; abbreviations.
Author : Petra Marschner
Publisher : Springer Science & Business Media
ISBN 13 : 3540680276
Total Pages : 409 pages
Book Rating : 4.5/5 (46 download)
Download or read book Nutrient Cycling in Terrestrial Ecosystems written by Petra Marschner and published by Springer Science & Business Media. This book was released on 2007-05-01 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of nutrient cycling processes and their importance for plant growth and ecosystem sustainability. The book combines fundamental scientific studies and devised practical approaches. It contains contributions of leading international authorities from various disciplines resulting in multidisciplinary approaches, and all chapters have been carefully reviewed. This volume will support scientists and practitioners alike.
Author : Victor Sadras
Publisher : Elsevier
ISBN 13 : 0124169791
Total Pages : 566 pages
Book Rating : 4.1/5 (241 download)
Download or read book Crop Physiology written by Victor Sadras and published by Elsevier. This book was released on 2014-09-17 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: From climate change to farming systems to genetic modification of organisms, Crop Physiology, Second Edition provides a practical tool for understanding the relationships and challenges of successful cropping. With a focus on genetic improvement and agronomy, this book addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. The second edition of Crop Physiology continues to provide a unique analysis of these topics while reflecting important changes and advances in the relevant science and implementation systems. Contemporary agriculture confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against the background of soil and water scarcity, worldwide and regional shifts in the patterns of land use driven by both climate change and the need to develop crop-based sources of energy, and the environmental and social aspects of agricultural sustainability. - Provides a view of crop physiology as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy - Written by leading scientists from around the world - Combines environment-specific cropping systems and general principles of crop science to appeal to advanced students, and scientists in agriculture-related disciplines, from molecular sciences to natural resources management
Author :
Publisher :
ISBN 13 :
Total Pages : 442 pages
Book Rating : 4.:/5 (6 download)
Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2000 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George C. Fahey
Publisher :
ISBN 13 :
Total Pages : 1032 pages
Book Rating : 4.:/5 (89 download)
Download or read book Forage Quality, Evaluation, and Utilization written by George C. Fahey and published by . This book was released on 1994 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a historical foundation as well as a review of the state-of- the-art in forage science, detailing 25 years of progress in forage quality, evaluation, and utilization, along with the latest developments and new directions for future research. The volume is divided into six sections: overview of forage science; identification and quantitative measurement of forage quality components; intake as a critical element of forest quality; role of digestion and metabolism in determining forage quality; integrating concepts affecting changes in forage quality; and improving forage quality and evaluation. No index. Member price, $36. Annotation copyright by Book News, Inc., Portland, OR
Author : Holm Tiessen
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.3/5 (91 download)
Download or read book Phosphorus in the Global Environment written by Holm Tiessen and published by . This book was released on 1995-12-05 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: However, the controls on phosphorus transfers through landscapes are complex, and an integrated approach by terrestrial and aquatic scientists is needed to develop such an understanding. The use of waterbodies as sensitive and fragile indicators of phosphorus losses from surrounding watersheds is an important step towards a comprehensive scientific approach.
Author : Donald M. Ball
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.:/5 (89 download)
Download or read book Southern Forages written by Donald M. Ball and published by . This book was released on 1996 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E.G. Gregorich
Publisher : Elsevier
ISBN 13 : 0080541402
Total Pages : 465 pages
Book Rating : 4.0/5 (85 download)
Download or read book Soil Quality for Crop Production and Ecosystem Health written by E.G. Gregorich and published by Elsevier. This book was released on 1997-11-10 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is a complex body that exists as many types, each with diverse properties that may vary widely across time and space as a function of many factors. This complexity makes the evaluation of soil quality much more challenging than that of water or air quality. Evaluation of soil quality now considers environmental implications as well as economic productivity, seeking to be more holistic in its approach.Thus, soil quality research draws from a wide range of disciplines, blending the approaches of biologists, physicists, chemists, ecologists, economists and agronomists, among others.This book presents a broad perspective of soil quality that includes these various perspectives and gives a strong theoretical basis for the assessment of soil quality.A short glossary provides definitions for terms used throughout the book.
Author : Robert J. Wright
Publisher : Springer
ISBN 13 : 9789401055208
Total Pages : 0 pages
Book Rating : 4.0/5 (552 download)
Download or read book Plant-Soil Interactions at Low pH written by Robert J. Wright and published by Springer. This book was released on 2012-12-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil acidity is a major limitation to crop production in many parts of the world. Plant growth inhibition results from a combination of factors, including aluminum, manganese, and hydrogen ion toxicities and deficiencies of essential elements, particularly calcium, magnesium, phosphorus, and molybdenum. Agricultural management practices and acid precipitation have increased acid inputs into the ecosystem and heightened concern about soil acidity problems. While application of lime has proved to be effective in ameliorating surface soil acidity in many areas, significant soil acidity problems still exist. Scientists from Alberta, Canada, recognized the need to provide a forum for researchers from different disciplines to exchange information and ideas on solving problems of plant growth in acid soils. As a result of their efforts, the First International Symposium on Plant-Soil Interactions at Low pH was held at Grande Prairie, Alberta, Canada, in July 1987. In many acid soil areas, liming materials are not readily available, the cost may be prohibitive, or subsoil acidity cannot be corrected by surface application of lime. New management approaches involving both the plant and the soil are needed in these situations. Progress has been made in the selection and breeding of acid-tolerant plants. However, continued progress will be limited by our lack of understanding of the physiological and biochemical basis of differential acidity tolerance among plants.
Author :
Publisher :
ISBN 13 : 9780891188636
Total Pages : pages
Book Rating : 4.1/5 (886 download)
Download or read book Micronutrients in Agriculture written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew Henderson
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Palms of the Amazon written by Andrew Henderson and published by . This book was released on 1995 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The palms are among the most abundant, diverse, and important families of plants found in the Amazon. Based on extensive field work, this book provides a systematic treatment of all palms that occur naturally in the Amazon region. Each species is exhaustively described with reviews of their distribution, habitat, and ecology. Introductory chapters describe the physical setting of the Amazon region as well as on the biogeography and ecology of the palm family. This first modern treatment of the 135 species of Amazon palms provides a definitive account of their ecology, uses, and biogeography. It will be welcomed by students, teachers, and researchers of botany, ecology, agronomy, and conservation biology.
Author : Rattan Lal
Publisher : CRC Press
ISBN 13 : 1482257858
Total Pages : 351 pages
Book Rating : 4.4/5 (822 download)
Download or read book Soil Phosphorus written by Rattan Lal and published by CRC Press. This book was released on 2016-09-19 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphorus is an essential plant nutrient, but global population growth has dramatically reduced the availability of phosphorus fertilizer resources. Despite this scarcity, there remain numerous problems associated with the excessive and inappropriate use of phosphorus leading to non-point source pollution and eutrophication of natural waters. Identifying appropriate systems for managing soil phosphorus and reducing the risks of eutrophication are needed to minimize the environmental risks. This book focuses on the availability and recycling of phosphorus; regulatory and policy issues of sustainable phosphorus use; and water quality management in agroecosystems pertaining to phosphorus. Sections are dedicated to global phosphorus reserves; cycling and pathways of phosphorus; phosphorus in agriculture; human dimensions and policy intervention; and research and development priorities. Phosphorus is a finite but crucial resource and is an essential element to all life. Sub-optimal availability and nutrient imbalance in the root zone can adversely impact plant growth, and the quality of food and feed grown on these soils. However, the proven reserves of phosphorus can hardly be adequate for a few centuries only. Yet, its misuse and mismanagement has caused severe problems of eutrophication of water and pollution of the environment. Thus, judicious management of soil phosphorus is essential. This volume is specifically devoted to availability and recycling of phosphorus, regulatory/policy issues of sustainable use of phosphorus, and management in agroecosystems in the context of maximizing the use efficiency and minimizing the environmental risks of water quality.
Author : Midshipman Allen Gardiner
Publisher : Seaforth Publishing
ISBN 13 : 1848321740
Total Pages : 169 pages
Book Rating : 4.8/5 (483 download)
Download or read book Hunting the Essex written by Midshipman Allen Gardiner and published by Seaforth Publishing. This book was released on 2013-06-30 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: In February 1813 the British frigate Phoebe set out on a secret mission that would involve sailing halfway around the world to attack American settlements in the Pacific Northwest. The United States, frustrated at the treatment of its shipping by the combatants in the Napoleonic Wars, had finally opened hostilities against the British in the previous June. From the American perspective the War of 1812 began with disasters in its invasion of Canada, but against all expectations the infant US Navy had scored significant victories at sea. The most strategically significant of these was the campaign by the frigate USS Essex, which had almost annihilated the lucrative British whaling trade in the south Pacific. Therefore, Phoebe was diverted to hunt down and destroy this highly successful commerce-raider. After an epic search, Phoebe tracked her prey to neutral Valparaiso where the American frigate was blockaded and,in a very bloody battle, eventually captured. The American captain, David Porter, published a self-serving account of his actions which ever since has mired the battle in controversy, so this British naval eyewitness account is an important counter-balance. It is one of the lesser-known campaigns of a war which is currently celebrating its bicentenary, but its inherent drama inspired the plot of Patrick O'Brian's novel The Far Side of the World, although in its movie adaptation Master & Commander the American frigate is transformed into a French privateer.
Author :
Publisher : Food & Agriculture Organization of the UN (FAO)
ISBN 13 : 9789251086926
Total Pages : 0 pages
Book Rating : 4.0/5 (869 download)
Download or read book World Fertilizer Trends and Outlook to 2018 written by and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the world nitrogen, phosphate and potassium fertilizer medium-term supply and demand projections for the period 2014-2018. The FAO/Fertilizer Organizations Working Group met in Nairobi, Kenya, in June 2014 to review the prospects for fertilizer demand and supply, and prepared the forecasts. The African Fertilizer and Agribusiness Partnership (AFAP) and the Fertilizer Association of Southern Africa (FERTASA) provided special regional contributions and presentations.
Author : Rabindra N. Roy
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251050385
Total Pages : 104 pages
Book Rating : 4.0/5 (53 download)
Download or read book Assessment of Soil Nutrient Balance written by Rabindra N. Roy and published by Food & Agriculture Org.. This book was released on 2003 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient-balance assessments are valuable tools for delineating the consequences of farming on soil fertility. Various approaches and methods for different situations have been used in the past. This bulletin presents a state-of-the-art review of nutrient balance studies. It brings out the evolution of the approaches and methods, provides for comparisons among them, features the improvements made, and highlights remaining issues. This analysis will be useful in further development of the assessment methodologies as reliable tools for devising time-scale soil fertility management interventions.
