Producing More Rice With Less Water From Irrigated Systems

Author : Luis Catasús Guerra,International Water Management Institute
Publisher : IWMI
Page : 33 pages
File Size : 52,5 Mb
Release : 1998
Category : Agricultural productivity
ISBN : 9789290903697

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Producing More Rice with Less Water from Irrigated Systems by Luis Catasús Guerra,International Water Management Institute Pdf

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 : L.C. Guera, S.I. Bhuiyan, T.P. Tuong, R. Barker
Publisher : Int. Rice Res. Inst.
Page : 18 pages
File Size : 40,5 Mb
Release : 1998
Category : Electronic
ISBN : 9712201082

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Producing More Rice with Less Water from Irrigated Systems by L.C. Guera, S.I. Bhuiyan, T.P. Tuong, R. Barker Pdf

This paper deals with issues of improving the efficiency and productivity of water for rice production on-farm and in the irrigation system.

Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 59 pages
File Size : 44,9 Mb
Release : 2007
Category : Rice
ISBN : 9789712202193

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Water Management in Irrigated Rice by B. A. M. Bouman Pdf

Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 352 pages
File Size : 44,5 Mb
Release : 2002
Category : Rice
ISBN : 9789712201820

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Water-wise Rice Production by B. A. M. Bouman Pdf

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 : 54,8 Mb
Release : 2004
Category : Rice
ISBN : 9789290905318

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Growing more rice with less water: Increasing water productivity in rice- based cropping systems by International Water Management Institute (IWMI),International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia) Pdf

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 : 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 : 49,9 Mb
Release : 2003
Category : Irrigation farming
ISBN : 9789290905066

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Growing more rice with less water: Increasing water productivity in rice-based cropping systems – Progress of research, 1 July 2001 to 30 June 2002 by International Water Management Institute (IWMI) 
  ,International Rice Research Institute (IRRI),Wuhan University (WHU),CSIRO Land and Water Griffith Laboratory (Australia) Pdf

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 : Rob Cramb
Publisher : Springer Nature
Page : 462 pages
File Size : 53,9 Mb
Release : 2020-01-03
Category : Business & Economics
ISBN : 9789811509988

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White Gold: The Commercialisation of Rice Farming in the Lower Mekong Basin by Rob Cramb Pdf

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.

Author : J. W. Kijne,Randolph Barker,D. J. Molden
Publisher : CABI
Page : 354 pages
File Size : 53,5 Mb
Release : 2003
Category : Crops and water
ISBN : 9781845933395

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Water Productivity in Agriculture by J. W. Kijne,Randolph Barker,D. J. Molden Pdf

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 : Jauhar Ali,Shabir Hussain Wani
Publisher : Springer Nature
Page : 507 pages
File Size : 53,5 Mb
Release : 2021-05-05
Category : Technology & Engineering
ISBN : 9783030665302

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Rice Improvement by Jauhar Ali,Shabir Hussain Wani Pdf

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.

Author : Y. H. Li,T. P. Tuong
Publisher : IWMI
Page : 133 pages
File Size : 50,5 Mb
Release : 2001
Category : Irrigation efficency
ISBN : 9789290904656

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Water-saving Irrigation for Rice by Y. H. Li,T. P. Tuong Pdf

Contributed papers presented at the workshop.

Author : Wilfried Hundertmark
Publisher : IWMI
Page : 57 pages
File Size : 47,7 Mb
Release : 2003
Category : Rice
ISBN : 9789290905295

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A diagnostic model framework for water use in rice-based irrigation systems by Wilfried Hundertmark Pdf

The paper presents a framework for water use in rice-based irrigation systems, which is based on linear programming (LP). This framework intends to facilitate improved understanding of a system's internal and external conditions and the constraints to productive use of the available land and water resources, and thereby create a reference for the assessment of the physical, economic and environmental performance of a given system. The framework is conceived as a tool that is used interactively in technical group sessions with farmers, system operators and extension workers, where structured discussions lead to improved data confidence, and understanding of complex irrigation systems.

Author : Jaw-kai Wang,Ross E. Hagan
Publisher : Westview Press
Page : 332 pages
File Size : 50,6 Mb
Release : 1981
Category : Science
ISBN : STANFORD:36105035911937

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Irrigated Rice Production Systems by Jaw-kai Wang,Ross E. Hagan Pdf

Once a humble orphan existing in the shadows of the brutal Establishment, Lucian (3zLucky(3y Spark has evolved from lone vigilante to (3zThe Torch Keeper," a fiery symbol of the valiant resistance. Lucky now leads the heroic fight to restore justice and liberty to the downtrodden survivors of a world devastated by geological catastrophe and tyranny. But as the Torch Brigade prepares to launch a final, desperate gambit against the ruthless forces controlled by his former companion, the mysterious Cassius Thorn, Lucky struggles with the secret of his own true identity. Is he the spark of hope destined to unite a nation and finally end this destructive crusade? Or is he truly the dark catalyst of the past, intent on reducing the remnants of humanity to smoldering embers? With the fates of his brainwashed brother, Cole, and genetically transformed love, Digory Tycho, caught in the crossfire of epic war, Lucky's final choice may have apocalyptic consequences for an entire world.

Author : Ganesh Shivakoti
Publisher : SAGE
Page : 536 pages
File Size : 42,6 Mb
Release : 2005-11-23
Category : Business & Economics
ISBN : 0761933506

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Asian Irrigation in Transition by Ganesh Shivakoti Pdf

There is today a crucial need to revamp the management and governance of water systems in Asia in order to cater to the increasing demands of a growing group of users with diverse needs - urban settlements, industry, food producers and environmental needs. This book includes essays that cover a range of issues that are involved in this endeavor.

Author : Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen
Publisher : IWMI
Page : 39 pages
File Size : 42,6 Mb
Release : 2001
Category : Irrigation
ISBN : 9789290904182

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Alternate Wet/dry Irrigation in Rice Cultivation by Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen Pdf

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 : IRRI
Page : 245 pages
File Size : 47,5 Mb
Release : 2001
Category : Rice
ISBN : 9789712201714

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ORYZA2000 by Anonim Pdf