Download or read book Irrigation Management Improvement for Rice Based Farming System written by and published by . This book was released on 1990* with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Irrigation Management for Rice based Farming Systems in Bangladesh Indonesia and the Philippines written by Senen M. Miranda and published by IWMI. This book was released on 1993 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Section I: Technical considerations for rice-based farming systems: irrigation system management; Section II: Technical considerations for rice-based farming systems: farm-level management; Section III: Technical considerations for rice-based farming systems: farming systems; Section IV: Synthesis papers.

Download or read book Management Arrangements for Accommodating Nonrice Crops in Rice based Irrigation Systems written by Senen M. Miranda and published by IWMI. This book was released on 1992 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Country reports; Special papers; Workshop group sessions.

Download or read book Problems of irrigation management for rice based farming systems Progress report on the Rockfeller Foundation funded IIMI IRRI collaborative project written by and published by IWMI. This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Producing More Rice with Less Water from Irrigated Systems written by Luis Catasús Guerra and published by IWMI. This book was released on 1998 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Water Management in Irrigated Rice written by B. A. M. Bouman and published by Int. Rice Res. Inst.. This book was released on 2007 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Irrigation Management for Diversified Cropping written by International Irrigation Management Institute and published by IWMI. This book was released on 1987 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improvements in rice growing technologies during the last two decades have resulted in a number of countries, especially in the humid tropical regions of Asia, nearing self-sufficiency in rice production. Consequently, policies are shifting in these countries toward minimizing the under-utilization of land by increasing the cropping intensity of irrigated areas, particularly by growing non-rice crops during the dry season. These workshop papers discuss the advantages of and constraints to crop diversification in different country situations throughout Asia.

Download or read book Irrigation Management for Crop Diversification in Bangladesh written by M. R. Biswas and published by University Press Limited. This book was released on 1993 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Network on Irrigation Management for Diversified Cropping in Rice based Systems written by and published by IWMI. This book was released on 1989 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improving Irrigation Management Systems for Rice Farming written by Chun E. Kan and published by . This book was released on 2004 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growing more rice with less water Increasing water productivity in rice based cropping systems written by International Water Management Institute (IWMI) and published by IWMI. This book was released on 2004 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book A diagnostic model framework for water use in rice based irrigation systems written by Wilfried Hundertmark and published by IWMI. This book was released on 2003 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Irrigation Management Improvement Project Final report Vol 1 Main report Vol 2 Annexes written by and published by IWMI. This book was released on with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Expanding the Frontiers of Irrigation Management Research written by Douglas J. Merrey and published by IWMI. This book was released on 1997 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research results: performances assessment; Research results: design and operation of irrigation systems; Research results: policy, institutions, and management; Research results: health and environment; Training and institutional strengthening; Conclusions: outputs, impacts, and future directions.

Download or read book Organizational aspects of improved irrigation management an experiment in Dewahuwa Tank Sri Lanka written by Ekanayake, R. and published by IWMI. This book was released on 1990-01-01 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is one of several IIMI publications addressing the issue of irrigation management to promote diversified crops during the dry season. As Sri Lanka approaches self-sufficiency in rice production, a target already achieved by some other countries in the region, there is little logic in growing rice using land and water resources which could support higher- value non-rice crops, using less water. Thus, one of the incentives in improving irrigation management is to find ways of stretching water further during the dry season in water-deficit systems, when rice is relatively more expensive to grow than during the wet season, and when other crops which can be grown only during the dry season (when there is less danger of water-logging) offer the farmer and the country a comparative advantage.

Download or read book Irrigation Management for Diversified Cropping in Rice based Systems in the Philippines written by and published by IWMI. This book was released on with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advancements in IIMI s Research 1989 91 written by International Irrigation Management Institute and published by IWMI. This book was released on 1992 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Financial and human resources : irrigation investment trends in Sri Lanka, implication for policy and research in irrigation management;organizational dynamics in a corporate-type irrigation organization, and analysis of the national irrigation administration in the Philippines;system turnover to farmers in the Philippines;management training through special awards;reinforcing management at system level: a comparativestudy of farmer-managed systems in northern Pakistan;irrigation management for crop diversication;studies on rice-based irrigation systems management in Bangladesh;emerging issues and trends:issues in conjunctive management of groundwater and surface irrigation systems in Punjab, Pakistan, an initial assessment;salinity in Punjab watercourse commands and irrigation systems operations;application of mathematicalmodels for simulation of canal operations at Kirindi Oya, Sri Lanka, preliminary results;towards better performance:performance of new irrigation settlement schemes, a case study of kirindi Oya, Sri Lanka;performance of secondary canals in Pakistan Punjab, research on equity andvariability at the distributary level.