Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.

Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.

Download or read book Fertilizer Abstracts written by and published by . This book was released on 1969 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987-10 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Livestock and the Environment written by M. L. Rowe and published by . This book was released on 1977 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Livestock and the Environment written by Ralph H. Ramsey and published by . This book was released on 1974 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecologically Based Integrated Pest Management written by Opender Koul and published by CABI. This book was released on 2007-01-08 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated pest management (IPM) is a sustainable approach to manage pests through biological, cultural, physical and chemical means in order to minimize economic and environmental injury caused by such pests. Any comprehensive IPM programme requires an understanding of the ecological relationships between crops, pests, natural enemies and the environment. This book presents a series of review chapters on ecologically-based IPM. Topics covered range from the ecological effects of chemical control practices to the ecology of predator-prey and parasitoid-host systems.

Download or read book Crop Rotation on Organic Farms written by Charles L. Mohler and published by Natural Resource Agriculture and Engineering Service (Nraes). This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992 with total page 1742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Reporting Series written by and published by . This book was released on 1972 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Rice Research Notes Vol 10 No 6 written by and published by IRRI. This book was released on with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diet Health and Status Among the Pasi n Maya written by Lori E. Wright and published by Vanderbilt University Press. This book was released on 2006 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the data, analyses, and interpretation of a wide range of osteological and burial data. The Petexbatun bioarchaeology subproject included complete assessment of burial practice and osteology. The chapters on this research explore population variability in time and space, paleopathology, and trauma from skeletal remains throughout the various sites and the inter-site areas of the Petexbatun, as well as from Seibal and Altar de Sacrificios. Yet Wright's innovative study goes on to apply the most recent physical and chemical techniques, particularly isotopic analysis, to assess diet and health in the populations of the Pasion region. Variability between sites, across levels of status, and over time are assessed and conservatively interpreted in the light of contemporary issues and problems of physical, chemical, and statistical methodology. Finally, the Petexbatun and Pasion region results are compared in order to reassess past and current studies and interpretation of skeletal remains in other regions of the ancient Maya lowlands. In the final chapters of this work, Wright's cutting-edge osteological analyses are used to critique current alternative interpretations of Late Classic to Postclassic culture history and alternative hypotheses on the role of changes in climate, ecology, diet, nutrition, invasion, and other factors in the end of Classic Maya civilization and the transition to the Postclassic period. This volume also provides an independent assessment of the results of other Petexbatun region subprojects and a comparative evaluation of recent studies by other projects of Late and Terminal Classic culture change. For bioarchaeologists, this work sets a new standard in breadth and depth of osteological study. For Pre-Columbian scholars in general, it provides new insights into the environmental and biological issues involved in the debate on the end of the Classic period of Maya civilization. VIMA Series #2

Download or read book Environmental Protection Research Catalog written by Smithsonian Science Information Exchange and published by . This book was released on 1972 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nanofertilizer Delivery Effects and Application Methods written by Kamel A Abd-Elsalam and published by Elsevier. This book was released on 2024-01-13 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanofertilizer Delivery, Effects and Application Methods explores the science of nutrient nanoformulation, a potential tool toward sustainable and climate-sensitive crops.Wide-spread use of chemical fertilizers has been shown to causes significant damage to soil structure, mineral cycles, soil microbial flora, plants, and creating human health risk both immediately and for future generations. Through methods that include targeted distribution, and gradual or controlled release, nanostructured fertilizers can improve nutrient usage efficiency. According to recent studies, through environmental cues and biological demands, nano-fertilizers can respond to specifical challenges, and boost agricultural yield by increasing the rate of seed germination, seedling growth, photosynthetic activity, nitrogen metabolism, and carbohydrate and protein synthesis. Nanofertilizer Delivery, Effects and Application Methods discusses the potential agricultural benefits of nanofertilizers from coverage of their formulation and delivery, to application, plant uptake, translocation, and destiny, and their overall effect on plant physiology and metabolism. This book is ideal for researchers in industry and academia. - Highlights types, uses, and advantages of a wide range and variety of nanofertilizers on agri-food sectors - Looks at current practices, their challenges, and future development opportunities - Includes methods and applications for real-world insights

Download or read book Abstracts on Tropical Agriculture written by and published by . This book was released on 1990 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: