Water-saving Irrigation for Rice
Author: Y. H. Li
Publisher: IWMI
Published: 2001
Total Pages: 133
ISBN-13: 9290904658
DOWNLOAD EBOOKContributed papers presented at the workshop.
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Author: Y. H. Li
Publisher: IWMI
Published: 2001
Total Pages: 133
ISBN-13: 9290904658
DOWNLOAD EBOOKContributed papers presented at the workshop.
Author: B. A. M. Bouman
Publisher: Int. Rice Res. Inst.
Published: 2007
Total Pages: 59
ISBN-13: 9712202194
DOWNLOAD EBOOKAuthor: B. A. M. Bouman
Publisher: Int. Rice Res. Inst.
Published: 2002
Total Pages: 352
ISBN-13: 9712201821
DOWNLOAD EBOOKAuthor: Solenne Guillaume
Publisher:
Published: 2007
Total Pages: 96
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2008
Total Pages: 116
ISBN-13:
DOWNLOAD EBOOKAuthor: J. W. Kijne
Publisher: CABI
Published: 2003
Total Pages: 354
ISBN-13: 1845933397
DOWNLOAD EBOOKFirst 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: David J. Eaton
Publisher: University of Texas at Austin
Published: 2001
Total Pages: 286
ISBN-13:
DOWNLOAD EBOOKAuthor: Wim van der Hoek
Publisher: IWMI
Published: 2001
Total Pages: 39
ISBN-13: 9290904186
DOWNLOAD EBOOKMore 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: Luis Catasús Guerra
Publisher: IWMI
Published: 1998
Total Pages: 33
ISBN-13: 9290903694
DOWNLOAD EBOOKOver 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: Prabhu L. Pingali
Publisher: Int. Rice Res. Inst.
Published: 1997
Total Pages: 350
ISBN-13: 0851991629
DOWNLOAD EBOOKIntroduction: the state of rice in post-green-revolution Asia; Rice productivity growth: the case against complacency; Sustaining farm profits through technical change; Intensification-induced degradation of the paddy resource base; Erosion, pollution and poison: externalities and rice; Asian rice market: demand and supply prospects; GATT and rice: impact on the rice market and implications for research priorities; Agricultural commercialization and farmer product choices: the case of diversification out of rice; Strategic look at factor markets and the organization of agricultural production beyond 2025; Post-green-revolution seed technology for intensive rice systems; Fertilizers and pesticides: higher levels versus improved efficiencies; Dealing with labor scarcity: mechanical technologies.