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Author : Y. H. Li,T. P. Tuong
Publisher : IWMI
Page : 133 pages
File Size : 53,6 Mb
Release : 2001
Category : Irrigation efficency
ISBN : 9789290904656
Contributed papers presented at the workshop.
Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 59 pages
File Size : 43,6 Mb
Release : 2007
Category : Rice
ISBN : 9789712202193
Author : Anonim
Publisher : Unknown
Page : 116 pages
File Size : 54,8 Mb
Release : 2008
Category : Irrigation efficiency
ISBN : UCBK:C105723143
Author : Luis Catasús Guerra,International Water Management Institute
Publisher : IWMI
Page : 33 pages
File Size : 50,6 Mb
Release : 1998
Category : Agricultural productivity
ISBN : 9789290903697
Over the past decade, we have witnessed a growing scarcity of and competition for water around the world. As the demand for water for domestic, municipal, industrial, and environmental purposes rises in the future, less water will be available for agriculture. But the potentials for new water resource development projects and expanding irrigated area are limited. We must therefore find ways to increase the productivity of water used for irrigation. This paper reviews the literature on irrigation efficiency and on the potential for increasing the productivity of water in rice-based systems. It stresses the continuing confusion over the concepts of irrigation efficiency and water productivity. It identifies the reasons for the wide gap between water requirement and actual water input (both irrigation diversions and rainfall) in irrigated rice production systems and discusses potential opportunities for increasing water productivity both on-farm and at the system level. Based on the reported low farm and system level irrigation efficiencies, the potentials for water savings in rice production appear to be very large. But we do not know the degree to which various farm and system interventions will lead to sustainable water savings in the water basin until we can quantify the downstream impact of the interventions. Studies on the economic benefits and costs, and environmental aspects of alternative interventions are also lacking. This paper emphasizes the need to measure the productivity of water at farm, system, and basin levels, and to understand how the productivity at one level relates to the productivity at another. Without water balance studies to measure productivity at these different scales, it is not possible to identify the potential economic benefits of alternative interventions and the most appropriate strategies for increasing irrigation water p productivity in rice-based systems.
Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 352 pages
File Size : 50,5 Mb
Release : 2002
Category : Rice
ISBN : 9789712201820
Author : Oloro Vahid McHugh
Publisher : Unknown
Page : 318 pages
File Size : 52,9 Mb
Release : 2002
Category : Electronic
ISBN : CORNELL:31924094814435
Author : S. Krishnasamy,F. P. Amerasinghe,R. Sakthivadivel,G. Ravi,S. C. Tewari,W. van der Hoek
Publisher : IWMI
Page : 30 pages
File Size : 44,7 Mb
Release : 2003
Category : Mosquitoes
ISBN : 9789290905134
Overall, this case study under farmer-managed conditions suggest that alternate wet/dry irrigation saved water locally whilst maintaining yields on par with the other management regimes tested. However, the results on mosquito breeding indicate that caution needs to be exercised in promoting the technique as a method of mosquito vector control.
Author : Ekkehard Kürschner,Christian Henschel,Tina Hildebrandt,Ema Jülich,Martin Leineweber,Caroline Paul
Publisher : Unknown
Page : 128 pages
File Size : 45,5 Mb
Release : 2011
Category : Electronic
ISBN : OCLC:1155534260
Author : International Water Management Institute (IWMI) ,International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia)
Publisher : IWMI
Page : 38 pages
File Size : 55,8 Mb
Release : 2003
Category : Irrigation farming
ISBN : 9789290905066
The project is a follow-on to Impact of Water Saving Techniques in China (LWRl/98/66) that focused on the Zhanghe Irrigation System (ZIS) in Hubei Province and it has been expanded to include a second site in the drier Yellow river basin, the Liuyuankou Irrigation System (LIS) in Henan Province, and the Lower Murrumbidgee Catchment in Australia. An Australian partner, Commonwealth Scientific and Industrial Research Organization (CSIRO) was added to the team comprising the International Rice Research Institute (IRRI), International Water Management Institute (IWMI), Wuhan University (WHU) to strengthen our modeling and analytical capacity.
Author : Mobin-ud-Din Ahmad,Future Harvest (Program)
Publisher : IWMI
Page : 48 pages
File Size : 47,6 Mb
Release : 2007
Category : Agricultural systems
ISBN : 9789290906551
Study carried out in Punjab, Pakistan.
Author : International Water Management Institute (IWMI),International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia)
Publisher : IWMI
Page : 65 pages
File Size : 50,9 Mb
Release : 2004
Category : Rice
ISBN : 9789290905318
Work continues at two sites in China, the Zhanghe irrigation system (ZIS) in Hubei and the Liuyuankuo irrigation system (LIS) in Henan, and at the Murrumbidgee irrigation area (MIA) in Australia. Progress this year is reported by subproject. However, as we move into the modeling phase of the study, a major focus this coming year will be on integrating activities between subprojects.
Author : Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen
Publisher : IWMI
Page : 39 pages
File Size : 51,8 Mb
Release : 2001
Category : Irrigation
ISBN : 9789290904182
More irrigated land is devoted to rice than to any other crop. A method to save water in irrigated rice cultivation is the intermittent drying of the rice fields, known as alternate wet/dry irrigation (AWDI). This report reviews previous studies in AWDI, with a focus on mosquito vector control, water saving, and rice yields. Examples are provided from a number of countries.
Author : Anonim
Publisher : Int. Rice Res. Inst.
Page : 1038 pages
File Size : 46,5 Mb
Release : 2003
Category : Rice
ISBN : 9789712201844
Author : J. W. Kijne,Randolph Barker,D. J. Molden
Publisher : CABI
Page : 354 pages
File Size : 49,7 Mb
Release : 2003
Category : Crops and water
ISBN : 9781845933395
First title in a major new seriesAddresses improving water productivity to relieve problems of scarcity and competition to provide for food and environmental securityDraws from scientists having a multitude of disciplines to approach this important problemIn a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water. Focusing on both irrigated and rain-fed agriculture, this book gives a state of the art review of the limits and opportunities for improving water productivity in crop production. It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations and partners worldwide. It will be of significant interest to those working in areas of soil and crop science, water management, irrigation, and development studies.
Author : Megh R. Goyal,B. J. Pandian
Publisher : CRC Press
Page : 371 pages
File Size : 50,9 Mb
Release : 2019-02-01
Category : Science
ISBN : 9780429595356
Management Strategies for Water Use Efficiency and Micro Irrigated Crops presents new research and technologies for making better use of water resources for agricultural purposes. The chapters focus on better management to improve allocation and irrigation water efficiency and look at performance factors as well. Chapters look at irrigation technology, environmental conditions, and scheduling of water application. One section of the book focuses on water management in the cultivation of sugarcane, a very important industrial crop used in many fields. Other sections are devoted to principles and challenging technologies, water use efficiency for drip-irrigated crops, performance of fertigated rice under micro irrigation, and evaluation of performance of drip-irrigated crops. This valuable book is a must for those struggling to find ways to address the need to maintain efficient crop production in the midst of water shortages. With chapters from hands-on experts in the field, the book will be an invaluable reference and guide to effective micro irrigation methods.
