Producing More Rice With Less Water From Irrigated Systems
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Producing More Rice With Less Water From Irrigated Systems
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Author : Luis Catasús Guerra
language : en
Publisher: IWMI
Release Date : 1998
Producing More Rice With Less Water From Irrigated Systems written by Luis Catasús Guerra and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Agricultural productivity categories.
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.
Producing More Rice With Less Water From Irrigated Systems
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Author : L.C. Guera, S.I. Bhuiyan, T.P. Tuong, R. Barker
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1998
Producing More Rice With Less Water From Irrigated Systems written by L.C. Guera, S.I. Bhuiyan, T.P. Tuong, R. Barker and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
This paper deals with issues of improving the efficiency and productivity of water for rice production on-farm and in the irrigation system.
Growing More Rice With Less Water Increasing Water Productivity In Rice Based Cropping Systems
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Author : International Water Management Institute (IWMI)
language : en
Publisher: IWMI
Release Date : 2004
Growing More Rice With Less Water Increasing Water Productivity In Rice Based Cropping Systems written by International Water Management Institute (IWMI) and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Rice categories.
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.
Growing More Rice With Less Water Increasing Water Productivity In Rice Based Cropping Systems Progress Of Research 1 July 2001 To 30 June 2002
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Author : International Water Management Institute (IWMI)
language : en
Publisher: IWMI
Release Date : 2003
Growing More Rice With Less Water Increasing Water Productivity In Rice Based Cropping Systems Progress Of Research 1 July 2001 To 30 June 2002 written by International Water Management Institute (IWMI) and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Irrigation farming categories.
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.
Water Management In Irrigated Rice
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Author : B. A. M. Bouman
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 2007
Water Management In Irrigated Rice written by B. A. M. Bouman and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Rice categories.
Water Wise Rice Production
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Author : B. A. M. Bouman
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 2002
Water Wise Rice Production written by B. A. M. Bouman and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Rice categories.
White Gold The Commercialisation Of Rice Farming In The Lower Mekong Basin
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Author : Rob Cramb
language : en
Publisher: Springer Nature
Release Date : 2020-01-03
White Gold The Commercialisation Of Rice Farming In The Lower Mekong Basin written by Rob Cramb and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-03 with Business & Economics categories.
This open access book is about understanding the processes involved in the transformation of smallholder rice farming in the Lower Mekong Basin from a low-yielding subsistence activity to one producing the surpluses needed for national self-sufficiency and a high-value export industry. For centuries, farmers in the Basin have regarded rice as “white gold”, reflecting its centrality to their food security and well-being. In the past four decades, rice has also become a commercial crop of great importance to Mekong farmers, augmenting but not replacing its role in securing their subsistence. This book is based on collaborative research to (a) compare the current situation and trajectories of rice farmers within and between different regions of the Lower Mekong, (b) explore the value chains linking rice farmers with new technologies and input and output markets within and across national borders, and (c) understand the changing role of government policies in facilitating the on-going evolution of commercial rice farming. An introductory section places the research in geographical and historical context. Four major sections deal in turn with studies of rice farming, value chains, and policies in Northeast Thailand, Central Laos, Southeastern Cambodia, and the Mekong Delta. The final section examines the implications for rice policy in the region as a whole.
Rice Improvement
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Author : Jauhar Ali
language : en
Publisher: Springer Nature
Release Date : 2021-05-05
Rice Improvement written by Jauhar Ali and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-05 with Technology & Engineering categories.
This book is open access under a CC BY 4.0 license. By 2050, human population is expected to reach 9.7 billion. The demand for increased food production needs to be met from ever reducing resources of land, water and other environmental constraints. Rice remains the staple food source for a majority of the global populations, but especially in Asia where ninety percent of rice is grown and consumed. Climate change continues to impose abiotic and biotic stresses that curtail rice quality and yields. Researchers have been challenged to provide innovative solutions to maintain, or even increase, rice production. Amongst them, the ‘green super rice’ breeding strategy has been successful for leading the development and release of multiple abiotic and biotic stress tolerant rice varieties. Recent advances in plant molecular biology and biotechnologies have led to the identification of stress responsive genes and signaling pathways, which open up new paradigms to augment rice productivity. Accordingly, transcription factors, protein kinases and enzymes for generating protective metabolites and proteins all contribute to an intricate network of events that guard and maintain cellular integrity. In addition, various quantitative trait loci associated with elevated stress tolerance have been cloned, resulting in the detection of novel genes for biotic and abiotic stress resistance. Mechanistic understanding of the genetic basis of traits, such as N and P use, is allowing rice researchers to engineer nutrient-efficient rice varieties, which would result in higher yields with lower inputs. Likewise, the research in micronutrients biosynthesis opens doors to genetic engineering of metabolic pathways to enhance micronutrients production. With third generation sequencing techniques on the horizon, exciting progress can be expected to vastly improve molecular markers for gene-trait associations forecast with increasing accuracy. This book emphasizes on the areas of rice science that attempt to overcome the foremost limitations in rice production. Our intention is to highlight research advances in the fields of physiology, molecular breeding and genetics, with a special focus on increasing productivity, improving biotic and abiotic stress tolerance and nutritional quality of rice.
Growing More Rice With Less Water
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Author : Oloro Vahid McHugh
language : en
Publisher:
Release Date : 2002
Growing More Rice With Less Water written by Oloro Vahid McHugh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Rice In The Tropics
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Author : Robert Flint Chandler
language : en
Publisher: Int. Rice Res. Inst.
Release Date : 1979
Rice In The Tropics written by Robert Flint Chandler and has been published by Int. Rice Res. Inst. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Political Science categories.
The importance of rive as a world crops, and its principal characteristics. The modern rice plant and the new technology: Greater potentials for rice production in the tropics. Problems of postharvest technology. Rice marketing. Some successful rice production programs. Promising rice research. Elements of a successful accelerated rice production program. A national rice program: putting the ingredients together.