[PDF] Understanding Agriculture eBook

Author : R. Ford Denison
Publisher : Princeton University Press
Page : 269 pages
File Size : 20,26 MB
Release : 2016-08-16
Category : Science
ISBN : 0691173761

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As human populations grow and resources are depleted, agriculture will need to use land, water, and other resources more efficiently and without sacrificing long-term sustainability. Darwinian Agriculture presents an entirely new approach to these challenges, one that draws on the principles of evolution and natural selection. R. Ford Denison shows how both biotechnology and traditional plant breeding can use Darwinian insights to identify promising routes for crop genetic improvement and avoid costly dead ends. Denison explains why plant traits that have been genetically optimized by individual selection--such as photosynthesis and drought tolerance--are bad candidates for genetic improvement. Traits like plant height and leaf angle, which determine the collective performance of plant communities, offer more room for improvement. Agriculturalists can also benefit from more sophisticated comparisons among natural communities and from the study of wild species in the landscapes where they evolved. Darwinian Agriculture reveals why it is sometimes better to slow or even reverse evolutionary trends when they are inconsistent with our present goals, and how we can glean new ideas from natural selection's marvelous innovations in wild species.

Author : National Research Council
Publisher : National Academies Press
Page : 84 pages
File Size : 48,53 MB
Release : 1988-02-01
Category : Education
ISBN :

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This book responds to the widespread recognition among experts that our educational system needs to change in order to provide the skills and knowledge necessary to ensure the future vitality of U.S. agriculture. Understanding Agriculture focuses on agricultural literacy (education about agriculture) and vocational agricultural education (education in agriculture). The section on agricultural literacy addresses the teaching of science through agriculture, teacher education and training, model educational programs, community support, and agricultural career exploration programs. Vocational agricultural education is examined in terms of program enrollment, availability and content, supervised occupational experiences, the Future Farmers of America program, and teacher education and supply.

Author : Scott E. Ingram
Publisher : University of Arizona Press
Page : 391 pages
File Size : 13,62 MB
Release : 2015-04-02
Category : Social Science
ISBN : 0816531293

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Traditional Arid Lands Agriculture is the first of its kind. Each chapter considers four questions: what we don’t know about specific aspects of traditional agriculture, why we need to know more, how we can know more, and what research questions can be pursued to know more. What is known is presented to provide context for what is unknown. Traditional agriculture, nonindustrial plant cultivation for human use, is practiced worldwide by millions of smallholder farmers in arid lands. Advancing an understanding of traditional agriculture can improve its practice and contribute to understanding the past. Traditional agriculture has been practiced in the U.S. Southwest and northwest Mexico for at least four thousand years and intensely studied for at least one hundred years. What is not known or well-understood about traditional arid lands agriculture in this region has broad application for research, policy, and agricultural practices in arid lands worldwide. The authors represent the disciplines of archaeology, anthropology, agronomy, art, botany, geomorphology, paleoclimatology, and pedology. This multidisciplinary book will engage students, practitioners, scholars, and any interested in understanding and advancing traditional agriculture.

Author : Ruth MacDonald
Publisher : Academic Press
Page : 373 pages
File Size : 14,16 MB
Release : 2017-05-25
Category : Technology & Engineering
ISBN : 0128044853

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Understanding Food Systems: Agriculture, Food Science, and Nutrition in the United States explores the complex and evolving system from which the United States gets its food. From farm, to home, and everything in-between, the authors use a scientific perspective that explains the fundamentals of agricultural production, food science, and human nutrition that will guide readers through the issues that shape our food system, including political, societal, environmental, economic, and ethical concerns. Presenting the role and impact of technology, from production to processing and safety, to cultural and consumer behavior perspectives, the book also explores the link between food systems and the history of nutrients and diet patterns, and how these influence disease occurrence. Current topics of concern and debate, including the correlations between food systems and diet-related diseases, such as obesity and diabetes are explored, as are the history and current status of food insecurity and accessibility. Throughout the text, readers are exposed to current topics that play important roles in personal food choices and how they influence components of the food system. Presents the evolution of the US food system, from historical beginnings, to current consumer and political roles and responsibilities Provides farm to fork insights on production and consumption practices in the United States Explores complex topics in call-out boxes throughout the text to help readers understand the various perspectives on controversial topics

Author : Andrew Flachs
Publisher : University of Arizona Press
Page : 241 pages
File Size : 42,48 MB
Release : 2019-11-05
Category : Social Science
ISBN : 0816539634

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A single seed is more than just the promise of a plant. In rural south India, seeds represent diverging paths toward a sustainable livelihood. Development programs and global agribusiness promote genetically modified seeds and organic certification as a path toward more sustainable cotton production, but these solutions mask a complex web of economic, social, political, and ecological issues that may have consequences as dire as death. In Cultivating Knowledge anthropologist Andrew Flachs shows how rural farmers come to plant genetically modified or certified organic cotton, sometimes during moments of agrarian crisis. Interweaving ethnographic detail, discussions of ecological knowledge, and deep history, Flachs uncovers the unintended consequences of new technologies, which offer great benefits to some—but at others’ expense. Flachs shows that farmers do not make simple cost-benefit analyses when evaluating new technologies and options. Their evaluation of development is a complex and shifting calculation of social meaning, performance, economics, and personal aspiration. Only by understanding this complicated nexus can we begin to understand sustainable agriculture. By comparing the experiences of farmers engaged with these mutually exclusive visions for the future of agriculture, Cultivating Knowledge investigates the human responses to global agrarian change. It illuminates the local impact of global changes: the slow, persistent dangers of pesticides, inequalities in rural life, the aspirations of people who grow fibers sent around the world, the place of ecological knowledge in modern agriculture, and even the complex threat of suicide. It all begins with a seed.

Author : Ivette Perfecto
Publisher : Routledge
Page : 397 pages
File Size : 41,72 MB
Release : 2015-02-11
Category : Science
ISBN : 1134056141

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Based on principles of the conservation and optimization of biodiversity and of equity and sustainability, this book focuses on the ecology of the coffee agroecosystem as a model for a sustainable agricultural ecosystem. It draws on the authors' own research conducted over the last twenty years as well as incorporating the vast literature that has been generated on coffee agroecosystems from around the world. The book uses an integrated approach that weaves together various lines of research to understand the ecology of a very diverse tropical agroforestry system. Key concepts explored include biodiversity patterns, metapopulation dynamics and ecological networks. These are all set in a socioeconomic and political framework which relates them to the realities of farmers' livelihoods. The authors provide a novel synthesis that will generate new understanding and can be applied to other examples of sustainable agriculture and food production. This synthesis also explains the ecosystem services provided by the approach, including the economic, fair trade and political aspects surrounding this all-important global commodity.

Author : National Research Council
Publisher : National Academies Press
Page : 214 pages
File Size : 47,33 MB
Release : 2007-12-07
Category : Technology & Engineering
ISBN : 0309110920

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The Agricultural Resource Management Survey (ARMS) is the federal government's primary source of information on the financial condition, production practices, and resource use on farms, as well as the economic well-being of America's farm households. ARMS data are important to the U.S. Department of Agriculture (USDA) and to congressional, administration, and industry decision makers when they must weigh alternative policies and programs that touch the farm sector or affect farm families. ARMS is unique in several respects. As a multiple-purpose survey with an agricultural focus, ARMS is the only representative national source of observations of farm-level production practices, the economics of the farm businesses operating the field (or dairy herd, greenhouse, nursery, poultry house, etc.), and the characteristics of the American farm household (age, education, occupation, farm and off-farm work, types of employment, family living expenses, etc.). No other data source is able to match the range and depth of ARMS in these areas. American agriculture is changing, and the science of statistical measurement is changing as well. As with every major governmental data collection with such far-reaching and important uses, it is critical to periodically ensure that the survey is grounded in relevant concepts, applying the most up-to-date statistical methodology, and invested with the necessary design, estimation, and analytical techniques to ensure a quality product. ARMS is a complex undertaking. From its start as a melding of data collected from the field, the farm, and the household in a multiphase, multiframe, and multiple mode survey design, it has increased in complexity over the decade of its existence as more sophisticated demands for its outputs have been made. Today, the survey faces difficult choices and challenges, including a need for a thorough review of its methods, practices, and procedures. Understanding American Agriculture : Challenges for the Agricultural Resource Management Survey summarizes the recommendations of the committee who wrote the survey.

Author : Julian F. Gonsalves
Publisher : IDRC
Page : 273 pages
File Size : 23,92 MB
Release : 2005
Category : Technology & Engineering
ISBN : 1552501817

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Intended for aspiring and new practitioners of Participatory Research and Development (PR&D) as well as field-based researchers in developing countries. Highlights that agricultural research and development has become a joint approach to deal with diverse biophysical environments, multiple livelihood goals, rapid changes in local and global economies, and an expanded range for stakeholders over agriculture and natural resources.

Author : Robert Wuthnow
Publisher : Princeton University Press
Page : 236 pages
File Size : 19,72 MB
Release : 2020-08-04
Category : Business & Economics
ISBN : 0691210721

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A vivid and moving portrait of America's farm families Farming is essential to the American economy and our daily lives, yet few of us have much contact with farmers except through the food we eat. Who are America's farmers? Why is farming important to them? How are they coping with dramatic changes to their way of life? In the Blood paints a vivid and moving portrait of America’s farm families, shedding new light on their beliefs, values, and complicated relationship with the land. Drawing on more than two hundred in-depth interviews, Robert Wuthnow presents farmers in their own voices as they speak candidly about their family traditions, aspirations for their children, business arrangements, and conflicts with family members. They describe their changing relationships with neighbors, their shifting views about religion, and the subtle ways they defend their personal independence. Wuthnow shares the stories of farmers who operate dairies, raise livestock, and grow our fruit and vegetables. We hear from corn and soybean farmers, wheat-belt farmers, and cotton growers. We gain new insights into how farmers assign meaning to the land, and how they grapple with the increasingly difficult challenges of biotechnology and global markets. In the Blood reveals how, despite profound changes in modern agriculture, farming remains an enduring commitment that runs deeply in the veins of today’s farm families.