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Author: David S. Jenkinson Publisher: Pergamon ISBN: Category : Technology & Engineering Languages : en Pages : 472
Book Description
A Seminar on nitrogen efficiency in agricultural soils and the efficiency use of fertilizer nitrogen, held in Edinburgh, 16-18 September 1987, as part of the EC Programme for the Coordination of Agricultural Research.
Author: Harold E. Gene Garrett Publisher: John Wiley & Sons ISBN: 0891183779 Category : Technology & Engineering Languages : en Pages : 580
Book Description
North American Agroforestry Explore the many benefits of alternative land-use systems with this incisive resource Humanity has become a victim of its own success. While we’ve managed to meet the needs—to one extent or another—of a large portion of the human population, we’ve often done so by ignoring the health of the natural environment we rely on to sustain our planet. And by deteriorating the quality of our air, water, and land, we’ve put into motion consequences we’ll be dealing with for generations. In the newly revised Third Edition of North American Agroforestry, an expert team of researchers delivers an authoritative and insightful exploration of an alternative land-use system that exploits the positive interactions between trees and crops when they are grown together and bridges the gap between production agriculture and natural resource management. This latest edition includes new material on urban food forests, as well as the air and soil quality benefits of agroforestry, agroforestry’s relevance in the Mexican context, and agroforestry training and education. The book also offers: A thorough introduction to the development of agroforestry as an integrated land use management strategy Comprehensive explorations of agroforestry nomenclature, concepts, and practices, as well as an agroecological foundation for temperate agroforestry Practical discussions of tree-crop interactions in temperate agroforestry, including in systems such as windbreak practices, silvopasture practices, and alley cropping practices In-depth examinations of vegetative environmental buffers for air and water quality benefits, agroforestry for wildlife habitat, agroforestry at the landscape level, and the impact of agroforestry on soil health Perfect for environmental scientists, natural resource professionals and ecologists, North American Agroforestry will also earn a place in the libraries of students and scholars of agricultural sciences interested in the potential benefits of agroforestry.
Author: Pedro A. Sanchez Publisher: Cambridge University Press ISBN: 1107176050 Category : Business & Economics Languages : en Pages : 685
Book Description
Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Author: Arvin Mosier Publisher: Island Press ISBN: 1597267430 Category : Science Languages : en Pages : 320
Book Description
Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very uneven, with some areas subject to nitrogen pollution and others suffering from reduced soil fertility, diminished crop production, and other consequences of inadequate supply. Agriculture and the Nitrogen Cycle provides a global assessment of the role of nitrogen fertilizer in the nitrogen cycle. The focus of the book is regional, emphasizing the need to maintain food and fiber production while minimizing environmental impacts where fertilizer is abundant, and the need to enhance fertilizer utilization in systems where nitrogen is limited. The book is derived from a workshop held by the Scientific Committee on Problems of the Environment (SCOPE) in Kampala, Uganda, that brought together the world's leading scientists to examine and discuss the nitrogen cycle and related problems. It contains an overview chapter that summarizes the group's findings, four chapters on cross-cutting issues, and thirteen background chapters. The book offers a unique synthesis and provides an up-to-date, broad perspective on the issues of nitrogen fertilizer in food production and the interaction of nitrogen and the environment.
Author: F. J. Stevenson Publisher: ISBN: Category : Technology & Engineering Languages : en Pages : 976
Book Description
Origem and distribution of nitrogen in soil. Inorganic forms of nitrogen in soil. Organic forms of soil nitrogen. Retention and fixation of ammonium and ammonim in soils. Biochemistry ammonification. Mineralization and Immobilization of soil nitrogem. Nitrogen trasport processes in soil. Nitrogen transformations in submerged soil. Advances in methodology for research on nitrogen transformations. Soil nitrogen budgets. Crop nitrogen requirements, utilizations, and fertilization. Nitrogen management for maximum efficiency and minimum pollution. Assesment of soil nitrogen availability. The effect of pesticides on nitrogen transformation in soils. Modeling of the soil nitrogen cycle. Economic implications of controls on nitrogen fertilizer use. Recycling of nitrogen through land application of agricultural, food processing, and municipal wastes. Energetics of nitrogen transformations. Nitrogem transfers and mass balances.
Author: Takuji Ohyama Publisher: BoD – Books on Demand ISBN: 1839684887 Category : Technology & Engineering Languages : en Pages : 218
Book Description
Nitrogen is the most important nutrient in agricultural practice because the availability of nitrogen from the soil is generally not enough to support crop yields. To maintain soil fertility, the application of organic matters and crop rotation have been practiced. Farmers can use convenient chemical nitrogen fertilizers to obtain high crop yields. However, the inappropriate use of nitrogen fertilizers causes environmental problems such as nitrate leaching, contamination in groundwater, and the emission of N2O gas. This book is divided into the following four sections: “Ecology and Environmental Aspects of Nitrogen in Agriculture”, “Nitrogen Fertilizers and Nitrogen Management in Agriculture”, “N Utilization and Metabolism in Crops”, “Plant-Microbe Interactions”.
Author: Khan Amanullah Publisher: BoD – Books on Demand ISBN: 9535137689 Category : Science Languages : en Pages : 252
Book Description
Nitrogen is the most yield-restraining nutrient in crop production globally. Efficient nitrogen management is one of the most important factor for improving nitrogen use efficiency, field crops productivity and profitability. Efficient use of nitrogen for crop production is therefore very important for increasing grain yield, maximizing economic return and minimizing nitrous oxide (N2O) emission from the fields and nitrate (NO3) leaching to ground water. Integrated nitrogen management is a good strategy to improve plant growth, increase yield and yield components, grain quality and reduce environmental problems. Integrated nitrogen management (combined use of chemical + organic + bio-fertilizers) in field crop production is more resilient to climate change.
Author: James Stuart Schepers
Author: James Stuart Schepers
Author: David S. Jenkinson
Author: Harold E. Gene Garrett
Author: Pedro A. Sanchez
Author: Arvin Mosier
Author: F. J. Stevenson
Author: Takuji Ohyama
Author: Bartholomerv W V.
Author: Ronald F. Follett
Author: Khan Amanullah