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Author: David W. Rycroft
Publisher: Food & Agriculture Org.
ISBN: 9789251036242
Category : Technology & Engineering
Languages : en
Pages : 180
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Book Description
Author: David W. Rycroft
Publisher: Food & Agriculture Org.
ISBN: 9789251036242
Category : Technology & Engineering
Languages : en
Pages : 180
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Book Description
Author: Peter Waller
Publisher: Springer
ISBN: 3319056999
Category : Science
Languages : en
Pages : 742
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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: R. S. Ayers
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 196
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Book Description
Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Author:
Publisher: World Bank Publications
ISBN: 9780821340677
Category : Technology & Engineering
Languages : en
Pages : 140
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Book Description
This paper provides the basis for the preparation of manuals necessary for managers and staffs to perform needed activities at the proper time. The guide provides a comprehensive list of issues that should be addressed in operation and maintenance manuals for irrigation and drainage systems, and a listing of published materials and working papers which will assist in the formulation of plans for operation and maintenance. The paper serves as a valuable tool to help improve the performance of irrigation and drainage systems and to assist managers in developing and improving effective organizations to serve water consumers better.
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: Henning Bjornlund
Publisher: WIT Press
ISBN: 1845646487
Category : Technology & Engineering
Languages : en
Pages : 545
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Book Description
"Wessex Institute of Technology's Sustainable Irrigation 2012 Conference held at University of South Australia in Adelaide"--Preface.
Author: W. H. van der Molen
Publisher: Food & Agriculture Org.
ISBN: 9789251056707
Category : Technology & Engineering
Languages : en
Pages : 252
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Book Description
The aim of this paper is to facilitate the planning and design of land drainage systems for sound land and water management for engineers and other professionals. It considers the integration of technical, socio-economic and environmental factors and the need for system users' participation in the planning, design, operation and maintenance processes. The text provides guidelines for the appropriate identification of drainage problems, for the planning and design of field drainage systems (surface and subsurface) and the main drainage and disposal systems. The annexes provide more detailed information with technical background, appropriate equations, some cross-references for finding appropriate methodologies, and computer programs for calculation of extreme values, of permeability and some land drainage system parameters. --Publisher's description.
Author: herman J. Finkel
Publisher: CRC Press
ISBN: 1351089552
Category : Science
Languages : en
Pages : 353
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Book Description
This book was first published in 1983. It provides a comprehensive overview of irrigation technologies, techniques and economics, tailored to a multitude of different crops.
Author: R. S. Ayers
Publisher:
ISBN:
Category : Riego
Languages : en
Pages : 9
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Book Description
Author: Martin Smith
Publisher: Food & Agriculture Org.
ISBN: 9789251031063
Category : Business & Economics
Languages : en
Pages : 140
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Book Description
Setting up cropwat: conditions of use and distribution; Installation; File structure. Getting started on cropwat: Main menu; Printer setting; Default drive and path for data input and retrieval. Eto Calculations: Input climatic station; Retrieval of Eto data from disk; Output. Crop water requeriments: Input climate data; Input of crop data; Crop water requirements results; Program continuation. Rice water requirements: Input of rice data from keyboard; Saving of rice data; Retrieval ofrice data from disk; Date of transplanting; Rice irrigation calculations; Rice irrigation output; Program continuation. Irrigation Scheduling: Data input for irrigation scheduling; Irrigation Scheduling options; Irrigation Scheduling calculations; Irrigation Scheduling output; Program continuation. Scheme water supply: Data input; Calculations; Output. Calculation of reference evapotranspiration: Data collection; Data conversion; Climatic data input; Climatic data and Eto output; Climatic and Eto data saving; Processing of rainfall data: Rainfall definitions; Rain data collection; Rain data processing; Effective Rainfall method; Rain data input; Saving climatic data; Printout of climatic data. Cropping pattern and crop information: Data collection; Cropping pattern; Crop data input. Crop water requirement calculations: File input; CWR calculations; CWR field files; Summary of CWR calculations. Scheme and canal water requirements: Calculation procedures; Field file input; Scheme water requirements (SWR) results; Evaluation of SWR results. Irrigation Scheduling: Data input; Soil data collection; Soil datainput; Irrigation scheduling applications.
