Problems Of Irrigation Management For Rice Based Farming Systems Progress Report On The Rockfeller Foundation Funded Iimi Irri Collaborative Project
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Author | : |
Publisher | : IWMI |
Total Pages | : 54 |
Release | : |
Genre | : |
ISBN | : |
Download Problems of irrigation management for rice-based farming systems: Progress report on the Rockfeller Foundation funded IIMI-IRRI collaborative project Book in PDF, Epub and Kindle
Author | : Senen M. Miranda |
Publisher | : IWMI |
Total Pages | : 111 |
Release | : 1989 |
Genre | : Crop diversification |
ISBN | : |
Download Irrigation Management for Crop Diversification in Indonesia, the Philippines, and Sri Lanka Book in PDF, Epub and Kindle
Author | : Luis Catasús Guerra |
Publisher | : IWMI |
Total Pages | : 33 |
Release | : 1998 |
Genre | : Agricultural productivity |
ISBN | : 9290903694 |
Download Producing More Rice with Less Water from Irrigated Systems Book in PDF, Epub and Kindle
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 | : Senen M. Miranda |
Publisher | : IWMI |
Total Pages | : 111 |
Release | : 1989 |
Genre | : Agricultural diversification |
ISBN | : 9290901063 |
Download Irrigation Management for Crop Diversification in Indonesia, the Philippines, and Sri Lanka Book in PDF, Epub and Kindle
This paper is a synthesis of IIMI's research on irrigation management for crop diversification in Indonesia, the Philippines and Sri Lanka. It provides some conclusions and recommendations, the potentials and constraints to more intensive non-rice production during the drier part of the year in irrigation systems that have been developed primarily for rice production. The research results obtained from selected irrigation systems sites in the three countries from 1985 to date were analyzed and compared by establishing common reference points where they existed, such as common constraints, potentials and institutional arrangements and by explaining differences based on observed data for each system. Relevant secondary data other than from the research sites were located to shed further insight in the synthesis.
Author | : B. A. M. Bouman |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 59 |
Release | : 2007 |
Genre | : Rice |
ISBN | : 9712202194 |
Download Water Management in Irrigated Rice Book in PDF, Epub and Kindle
Author | : International Rice Research Institute |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 991 |
Release | : 1995 |
Genre | : Technology & Engineering |
ISBN | : 9712200736 |
Download Fragile Lives in Fragile Ecosystems Book in PDF, Epub and Kindle
Fragile lives in fragile ecosystems: Feeding the world's poor from neglected rice ecosystems was the theme of the 1995 International Rice Research Conference. During the February meeting, participants assessed progress in rice research and identified new research approaches for reducing constraints and improving productivity and sustainability of less favored and fragile rice producing areas - these are the upland, rainfed lowland, and flood-prone ecosystems.
Author | : Prabhu L. Pingali |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 350 |
Release | : 1997 |
Genre | : Business & Economics |
ISBN | : 0851991629 |
Download Asian Rice Bowls Book in PDF, Epub and Kindle
Introduction: 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.
Author | : Noreen G. Dowling |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 413 |
Release | : 1998 |
Genre | : Technology & Engineering |
ISBN | : 9712201074 |
Download Sustainability of Rice in the Global Food System Book in PDF, Epub and Kindle
Author | : International Water Management Institute (IWMI) |
Publisher | : IWMI |
Total Pages | : 65 |
Release | : 2004 |
Genre | : Rice |
ISBN | : 929090531X |
Download Growing more rice with less water: Increasing water productivity in rice- based cropping systems Book in PDF, Epub and Kindle
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 | : L.C. Guera, S.I. Bhuiyan, T.P. Tuong, R. Barker |
Publisher | : Int. Rice Res. Inst. |
Total Pages | : 18 |
Release | : 1998 |
Genre | : |
ISBN | : 9789712201080 |
Download Producing More Rice with Less Water from Irrigated Systems Book in PDF, Epub and Kindle
This paper deals with issues of improving the efficiency and productivity of water for rice production on-farm and in the irrigation system.