Principles and Practices of Rice Production PDF Download

Author: Surajit K. De Datta
Publisher: Int. Rice Res. Inst.
ISBN: 0471097608
Category : Rice
Languages : en
Pages : 642

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Author: Claudia C. Faunt
Publisher: Geological Survey
ISBN: 9781411325159
Category : Nature
Languages : en
Pages : 0

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Book Description

Author: Food and Agriculture Organization of the United Nations
Publisher:
ISBN:
Category : Alkali lands
Languages : en
Pages : 540

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

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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: Pete Dunne
Publisher: Houghton Mifflin Harcourt
ISBN: 0618236481
Category : Nature
Languages : en
Pages : 729

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Book Description
In this book, bursting with more information than any field guide could hold, the well-known author and birder Pete Dunne introduces readers to the "Cape May School," or GISS, method of identification, which focuses on a bird holistically, giving more weight to the general impression of the bird than to specific field marks. After determining the most likely possibilities by considering such factors as habitat and season, the birder uses characteristics such as size, shape, behavior, flight pattern, and vocalizations to identify a bird. The book provides an arsenal of additional hints and helpful clues to guide a birder when, even after a review of a field guide, the identification still hangs in the balance. This supplement to field guides shares the knowledge and skills that expert birders bring to identification challenges.

Author: Philip Garone
Publisher: University of California Press
ISBN: 0520355571
Category : Nature
Languages : en
Pages : 440

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Book Description
This is the first comprehensive environmental history of California’s Great Central Valley, where extensive freshwater and tidal wetlands once provided critical habitat for tens of millions of migratory waterfowl. Weaving together ecology, grassroots politics, and public policy, Philip Garone tells how California’s wetlands were nearly obliterated by vast irrigation and reclamation projects, but have been brought back from the brink of total destruction by the organized efforts of duck hunters, whistle-blowing scientists, and a broad coalition of conservationists. Garone examines the many demands that have been made on the Valley’s natural resources, especially by large-scale agriculture, and traces the unforeseen ecological consequences of our unrestrained manipulation of nature. He also investigates changing public and scientific attitudes that are now ushering in an era of unprecedented protection for wildlife and wetlands in California and the nation.

Author: Joseph Jeremiah Hagwood (Jr.)
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 122

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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: National Research Council
Publisher: National Academies Press
ISBN: 9780309045346
Category : Technology & Engineering
Languages : en
Pages : 580

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Book Description
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.