Download or read book Transactions written by and published by . This book was released on 1994 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maize revolution in West and Central Africa written by and published by IITA. This book was released on 2003 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Asian Agri history written by and published by . This book was released on 2007 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Biological Nitrogen Fixation for the Development of More Productive and Sustainable Agricultural Systems written by J.K. Ladha and published by Int. Rice Res. Inst.. This book was released on 1995-09-30 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprinted from Plant and Soil, v.174, nos.1-2 (1995), this volume is devoted to discussions on the role of biological nitrogen fixation (BNF) in agricultural sustainability. Papers presented on BNF in crop forage and tree legumes are augmented with discussion of integrated farming systems involving BNF, soil and N management, and recycling of legume residues. BNF by non-legumes is discussed and attempts to transform cereals into nodulating plants are critically reviewed. Also described are advances in the development of new methodologies to understand symbiotic interactions and to assess N-2 fixation in the field; means of enhancing BNF through plant and soil management; breeding and selection; problems encountered in exploiting BNF under farmers' field conditions; and promising approaches to improve BNF exploitation. Lacks a subject index. Annotation copyright by Book News, Inc., Portland, OR
Download or read book Earthworm Management in Tropical Agroecosystems written by Patrick Lavelle and published by Oxford University Press, USA. This book was released on 1999 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of the ecology of tropical earthworm communities and their effects on soil properties and plant growth. It examines the latest methods and technologies for their management and includes work from leading experts in Europe, South and Central America, Africa, and Asia.
Download or read book Sixty Years of Science at UNESCO 1945 2005 written by Unesco and published by UNESCO. This book was released on 2006 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by historians and scientists from all over the world as well as by former and active staff members, this publication gives an inside perspective on the role played by UNESCO in the history of international scienctific co-operation over the past six decades. It is divided into six sections under the headings of: setting the scene, 1945-1965; basic sciences and engineering; environmental sciences; science and society; overviews and analyses; and looking ahead. It also features a list of chronological milestones during this 60-year period.
Download or read book Agroforestry Science Policy and Practice written by Fergus L. Sinclair and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroforestry research is central to developing methods for the sustainable use of natural renewable resources, evolving to address the needs of the coming century. It is now necessary to consolidate the scientific gains now being made in process-oriented research and to develop a policy framework to encourage the adoption of sustainable land use practices. Agroforestry plays an important role in conserving forest resources, reducing the need for deforestation. Further, if `forest' is broadly defined as tree cover, agroforestry will also increase the proportion of woody biomass in farming landscapes. The papers selected for inclusion in Agroforestry: Science, Policy, and Practice establish agroforestry as an interdisciplinary science focused on the practical imperative of assisting farmers, forest dwellers and landscape-level planners to achieve sustainable food, fuel and timber production into the 21st century.
Download or read book Fragile Lives in Fragile Ecosystems written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1995 with total page 991 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fragile lives in fragile ecosystems: Feeding the world's poor from neglected rice ecosystems was the theme of the 1995 International Rice Research Conference. During the February meeting, participants assessed progress in rice research and identified new research approaches for reducing constraints and improving productivity and sustainability of less favored and fragile rice producing areas - these are the upland, rainfed lowland, and flood-prone ecosystems.
Download or read book Direct Seeding written by and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Fixation with Non Legumes written by K.A. Malik and published by Springer. This book was released on 2012-10-13 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diazotrophic bacteria convert atmospheric nitrogen to plant-useable form and this input of nitrogen through biological fixation is of great agronomic importance. The contributions presented in this volume relate to free-living nitrogen fixers and the diazotrophs associated with plants. Symbiotic association of Frankia with non-legumes and cyanobacterial associations are also discussed. Research topics covered in this volume include the biochemistry and genetics of diazotrophs, recent developments in improvement of plant-microbe interactions and their molecular basis, the use of molecular probes in taxonomy and ecology of diazotrophs and reports on field applications, agronomic importance and improvement in methodologies for assessing their contribution to plants. This book provides valuable information not only for researchers working in the field of biological nitrogen fixation but also for biochemistry, molecular biologists, microbiologists and agronomists.
Download or read book Evaluation of Soil Organic Matter Models written by David S. Powlson and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil organic matter (SOM) represents a major pool of carbon within the biosphere, roughly twice than in atmospheric CO2. SOM models embody our best understanding of soil carbon dynamics and are needed to predict how global environmental change will influence soil carbon stocks. These models are also required for evaluating the likely effectiveness of different mitigation options. The first important step towards systematically evaluating the suitability of SOM models for these purposes is to test their simulations against real data. Since changes in SOM occur slowly, long-term datasets are required. This volume brings together leading SOM model developers and experimentalists to test SOM models using long-term datasets from diverse ecosystems, land uses and climatic zones within the temperate region.
Download or read book Tourism in Africa written by Iain Christie and published by World Bank Publications. This book was released on 2014-06-19 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents how tourism initiates economic development and how constraints to the growth of tourism in Sub-Saharan Africa can be addressed. With 24 case studies that illustrate tourism development, it reveals that despite destination challenges, the basic elements needed to initialize or intensify success are applicable across the region.
Download or read book Conservation Agriculture written by L. García-Torres and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: In large parts of the developed and developing worlds soil tillage by plough or hoe is the main cause of land degradation leading to stagnating or even declining production levels and increasing production cost. It causes the soil to become more dense and compacted, the organic matter content to be reduced and water runoff and soil erosion to increase. It also leads to droughts becoming more severe and the soil becoming less fertile and less responsive to fertiliser. This book brings together the key notes lectures and other outstanding contributions of the I World Congress on Conservation Agriculture and provides an updated view of the environment and economic advantages of CA and of its implementation in diferent areas of the World.
Download or read book Guide for Technical Tours 2 and 11 Canc n Villahermosa Acapulco written by and published by . This book was released on 1994 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The End of Development written by Andrew Brooks and published by Zed Books Ltd.. This book was released on 2017-05-15 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why did some countries grow rich while others remained poor? Human history unfolded differently across the globe. The world is separated in to places of poverty and prosperity. Tracing the long arc of human history from hunter gatherer societies to the early twenty first century in an argument grounded in a deep understanding of geography, Andrew Brooks rejects popular explanations for the divergence of nations. This accessible and illuminating volume shows how the wealth of ‘the West’ and poverty of ‘the rest’ stem not from environmental factors or some unique European cultural, social or technological qualities, but from the expansion of colonialism and the rise of America. Brooks puts the case that international inequality was moulded by capitalist development over the last 500 years. After the Second World War, international aid projects failed to close the gap between ‘developed’ and ‘developing’ nations and millions remain impoverished. Rather than address the root causes of inequality, overseas development assistance exacerbate the problems of an uneven world by imposing crippling debts and destructive neoliberal policies on poor countries. But this flawed form of development is now coming to an end, as the emerging economies of Asia and Africa begin to assert themselves on the world stage. The End of Development provides a compelling account of how human history unfolded differently in varied regions of the world. Brooks argues that we must now seize the opportunity afforded by today’s changing economic geography to transform attitudes towards inequality and to develop radical new approaches to addressing global poverty, as the alternative is to accept that impoverishment is somehow part of the natural order of things.
Download or read book Probability and Statistics for Engineering and the Sciences written by Jay Devore and published by Cengage Learning. This book was released on 2007-01-26 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This market-leading text provides a comprehensive introduction to probability and statistics for engineering students in all specialties. This proven, accurate book and its excellent examples evidence Jay Devore’s reputation as an outstanding author and leader in the academic community. Devore emphasizes concepts, models, methodology, and applications as opposed to rigorous mathematical development and derivations. Through the use of lively and realistic examples, students go beyond simply learning about statistics-they actually put the methods to use. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
Download or read book The Life of General Winfield Scott written by Edward Deering Mansfield and published by New York : A.S. Barnes. This book was released on 1846 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
