Guidelines for Predicting Crop Water Requirements PDF Download

Author: J. Doorenbos
Publisher:
ISBN:
Category : Crops
Languages : en
Pages : 202

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Book Description
Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.

Author: Peter Waller
Publisher: Springer
ISBN: 3319056999
Category : Science
Languages : en
Pages : 747

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Book Description
This textbook focuses specifically on the combined topics of irrigation and drainage engineering. It emphasizes both basic concepts and practical applications of the latest technologies available. The design of irrigation, pumping, and drainage systems using Excel and Visual Basic for Applications programs are explained for both graduate and undergraduate students and practicing engineers. The book emphasizes environmental protection, economics, and engineering design processes. It includes detailed chapters on irrigation economics, soils, reference evapotranspiration, crop evapotranspiration, pipe flow, pumps, open-channel flow, groundwater, center pivots, turf and landscape, drip, orchards, wheel lines, hand lines, surfaces, greenhouse hydroponics, soil water movement, drainage systems design, drainage and wetlands contaminant fate and transport. It contains summaries, homework problems, and color photos. The book draws from the fields of fluid mechanics, soil physics, hydrology, soil chemistry, economics, and plant sciences to present a broad interdisciplinary view of the fundamental concepts in irrigation and drainage systems design.

Author: Marc Reisner
Publisher: Penguin
ISBN: 1440672822
Category : Technology & Engineering
Languages : en
Pages : 674

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Book Description
“I’ve been thinking a lot about Cadillac Desert in the past few weeks, as the rain fell and fell and kept falling over California, much of which, despite the pouring heavens, seems likely to remain in the grip of a severe drought. Reisner anticipated this moment. He worried that the West’s success with irrigation could be a mirage — that it took water for granted and didn’t appreciate the precariousness of our capacity to control it.” – Farhad Manjoo, The New York Times, January 20,2023 "The definitive work on the West's water crisis." --Newsweek The story of the American West is the story of a relentless quest for a precious resource: water. It is a tale of rivers diverted and dammed, of political corruption and intrigue, of billion-dollar battles over water rights, of ecological and economic disaster. In his landmark book, Cadillac Desert, Marc Reisner writes of the earliest settlers, lured by the promise of paradise, and of the ruthless tactics employed by Los Angeles politicians and business interests to ensure the city's growth. He documents the bitter rivalry between two government giants, the Bureau of Reclamation and the U.S. Army Corps of Engineers, in the competition to transform the West. Based on more than a decade of research, Cadillac Desert is a stunning expose and a dramatic, intriguing history of the creation of an Eden--an Eden that may only be a mirage. This edition includes a new postscript by Lawrie Mott, a former staff scientist at the Natural Resources Defense Council, that updates Western water issues over the last two decades, including the long-term impact of climate change and how the region can prepare for the future.

Author: Casey Walsh
Publisher: Texas A&M University Press
ISBN: 160344436X
Category : Cotton farmers
Languages : en
Pages : 250

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Book Description
Cotton, crucial to the economy of the American South, has also played a vital role in the making of the Mexican north. The Lower Rio Bravo (Rio Grande) Valley irrigation zone on the border with Texas in northern Tamaulipas, Mexico, was the centerpiece of the Cardenas government's effort to make cotton the basis of the national economy. This irrigation district, built and settled by Mexican Americans repatriated from Texas, was a central feature of Mexico's effort to control and use the waters of the international river for irrigated agriculture. Drawing on previously unexplored archival sources, Casey Walsh discusses the relations among various groups comprising the "social field" of cotton production in the borderlands. By describing the complex relationships among these groups, Walsh contributes to a clearer understanding of capitalism and the state, of transnational economic forces, of agricultural and water issues in the U.S.-Mexican borderlands, and of the environmental impacts of economic development. Building the Borderlands crosses a number of disciplinary, thematic, and regional frontiers, integrating perspectives and literature from the United States and Mexico, from anthropology and history, and from political, economic, and cultural studies. Walsh's important transnational study will enjoy a wide audience among scholars of Latin American and Western U.S. history, the borderlands, and environmental and agricultural history, as well as anthropologists and others interested in the environment and water rights.

Author: Stephanie Rost
Publisher: Oriental Institute of the University of Chicago
ISBN: 1614910723
Category : History
Languages : en
Pages : 484

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Book Description
Irrigation has long been of interest in the study of the past. Many early civilizations were located in river valleys, and irrigation was of great economic importance for many early states because of the key role it played in producing an agricultural surplus, which was the main source of wealth and the basis of political power for the elites who controlled it. Agricultural surplus was also necessary to maintain the very features of statehood, such as urbanism, full-time labor specialization, state institutions, and status hierarchy. Yet, the presence of large-scale or complex irrigation systems does not necessarily mean that they were under centralized control. While some early states organized the construction, operation, and maintenance of irrigation works and resolved conflicts related to water distribution, other early governments left most of the management to local farmers and controlled only the surplus. The cross-cultural studies in this volume reexamine the role of irrigation in early states. Ranging geographically from South America and the southwestern United States to North Africa, the Middle East, and Asia, they describe the physical attributes and environments of early irrigation systems; various methods for empirical investigation of ancient irrigation; and irrigation's economic, sociopolitical, and cosmological dimensions. Through their interdisciplinary perspectives, the authors-all experts in the field of irrigation studies-advance both methodological and theoretical approaches to understanding irrigation in early civilizations.

Author: Douglas R. Mitchell
Publisher: UNM Press
ISBN: 9780826334619
Category : History
Languages : en
Pages : 284

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Book Description
Prehistoric burial practices provide an unparalleled opportunity for understanding and reconstructing ancient civilizations and for identifying the influences that helped shape them.

Author: Jimmy Carter
Publisher: Simon and Schuster
ISBN: 9780743211994
Category : Biography & Autobiography
Languages : en
Pages : 296

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Book Description
Jimmy Carter re-creates his boyhood on a Georgia farm.

Author: Andrew Barkley
Publisher: Routledge
ISBN: 1136779000
Category : Business & Economics
Languages : en
Pages : 369

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Book Description
This book showcases the power of economic principles to explain and predict issues and current events in the food, agricultural, agribusiness, international trade, natural resources and other sectors. The result is an agricultural economics textbook that provides students and instructors with a clear, up-to-date, and straightforward approach to learning how a market-based economy functions, and how to use simple economic principles for improved decision making. While the primary focus of the book is on microeconomic aspects, agricultural economics has expanded over recent decades to include issues of macroeconomics, international trade, agribusiness, environmental economics, natural resources, and international development. Hence, these topics are also provided with significant coverage.

Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages :

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Author: Verlyne Meck
Publisher: Arcadia Publishing
ISBN: 1439624682
Category : Photography
Languages : en
Pages : 100

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Book Description
With a population of more than 48,000, Buckeye is the ninth-fastest growing municipality in the United States. The towns rapid growth has left many longtime residents wondering what happened to the place where they grew up. Originally an agricultural community, Buckeye has embraced the 21st century, becoming a hub for the affordable housing market in the Valley of the Sun. Buckeyes colorful history is told by an Arizona Culture Keeper and lifelong resident of the Buckeye Valley, Verlyne Meck, who has woven a tapestry of words and images that tell the unique story of the Buckeye Valley.