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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 8
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A global perspective on water scarcity and poverty: achievements and challenges for water resource management AgEcon
Barker, Randolph; van Koppen, Barbara; Shah, Tushaar.
Tipo: Book Palavras-chave: Water scarcity; Poverty; Water resources development; Groundwater management; Food security; Irrigated farming; Agricultural production; Tube well irrigation; Sustainability; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Production Economics; Resource /Energy Economics and Policy.
Ano: 2000 URL: http://purl.umn.edu/118302
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Accounting of agricultural and nonagricultural impacts of irrigation and drainage systems: A study of multifunctionality in rice. AgEcon
Matsuno, Yutaka; Ko, H.S.; Tan, C.H.; Barker, Randolph; Levine, G..
Tipo: Working or Discussion Paper Palavras-chave: Irrigation farming; Drainage; Groundwater; Recharge; Rice; Paddy fields; Infiltration; Flood control; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2002 URL: http://purl.umn.edu/92702
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Agro-well and pump diffusion in the dry zone of Sri Lanka: Past trends, present status and future prospects AgEcon
Kikuchi, Masao; Weligamage, Parakrama; Barker, Randolph; Samad, Madar; Kono, Hiroichi; Somaratne, H.M..
The use of shallow wells, equipped with small pumps, to lift groundwater has spread rapidly in many agricultural regions of tropical monsoonal Asia. In Sri Lanka, the rapid and pervasive invasion of agro-wells and pumps drew the attention of policymakers and researchers, but many questions were left unanswered due to lack of research in the area. This study aims to fill this gap in knowledge, based on observations and data obtained in field surveys conducted in major and minor irrigation schemes in the dry zone of Sri Lanka. This report gives the key findings of this study into the pattern, extent and causes of the spread and use of agro-wells and pumps in traditional villages and irrigated settlement schemes. It investigates farmer investments in...
Tipo: Report Palavras-chave: Wells; Construction technology; Pumps; Arid zones; Investment; Irrigation systems; Irrigation programs; Rice; Estimation; Agribusiness; Agricultural Finance; Crop Production/Industries; Financial Economics; Marketing; Public Economics.
Ano: 2003 URL: http://purl.umn.edu/44558
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Direct and Total Benefits of Irrigation in India and its Implications to Irrigation Financing and Cost Recovery AgEcon
Bhattarai, Madhusudan; Narayanamoorthy, Annasamy; Barker, Randolph.
Who benefits from irrigation development in an economy and who should pay for the cost? This question so far has not been well addressed in the irrigation literature. To answer this question we need to know, in addition to the information on farmers' level benefits (increased crop productivity), the magnitude of the total economy wide benefits derived by the farm and non-farm sector in the economy from irrigation development. In this study, taking an example from India, we have estimated the marginal benefits of irrigation, both direct (farm level benefits) and total (rural economy wide). Then we compute irrigation multiplier values in India, which range from 3 to 4.5. This suggests that two thirds or more of the benefits from irrigation development have...
Tipo: Conference Paper or Presentation Palavras-chave: Direct and Indirect impacts of irrigation; Irrigation multipliers; Cost recovery and financing; Panel data analysis; India; Agricultural Finance; Resource /Energy Economics and Policy; O130; Q010; Q180.
Ano: 2006 URL: http://purl.umn.edu/25664
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Irrigation sector in Sri Lanka: Recent investment trends and the development path ahead AgEcon
Kikuchi, Masao; Barker, Randolph; Weligamage, Parakrama; Samad, Madar.
Increasing the area under irrigation and the widespread adoption of seed-fertilizer technology were the major factors that contributed to enhanced rice production in Sri Lanka, enabling the country to achieve self-sufficiency in rice. In recent years, there has been a shift in emphasis from expanding the irrigated land base to enhancing the productivity of irrigated land through diversification of agriculture and improvement of rice production, with better water management in irrigation schemes. This report attempts to assess how the irrigation sector in Sri Lanka is adapting itself to these new challenges. It analyzes the future direction of irrigation in Sri Lanka in light of recent trends in public and private investment in this sphere, and the...
Tipo: Report Palavras-chave: Irrigated farming; Public investment; Private investment; Cropping systems; Water management; Rehabilitation; Operating costs; Maintenance costs; Wells; Pumps; Agribusiness; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy.
Ano: 2002 URL: http://purl.umn.edu/44565
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Macro policies and investment priorities for irrigated agriculture in Vietnam AgEcon
Barker, Randolph; Ringler, Claudia; Tien, Nguyen Minh; Rosegrant, Mark W..
Tipo: Report Palavras-chave: Irrigated farming; Investment policy; Irrigation management; Marketing; Trade policy; Public finance; Water law; Regression analysis; Agricultural credit; Households; Agricultural and Food Policy; Agricultural Finance; Marketing; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/92833
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Prospects for adopting system of rice intensification in Sri Lanka: A socioeconomic assessment AgEcon
Namara, Regassa E.; Weligamage, Parakrama; Barker, Randolph.
Today, there is an increasing worldwide interest in assessing the potential for maintaining or increasing rice yields by reducing or eliminating the use of chemicals and by decreasing irrigation requirements. The System of Rice Intensification (SRI) first developed in Madagascar and now being tested in many countries, is an example of such an approach. The system is based largely on organic farming principles and additional requirements for spacing and the transplanting of seedlings.
Tipo: Report Palavras-chave: Models; Rice; Paddy fields; Irrigated farming; Rain-fed farming; Poverty; Farmers; Crop Production/Industries; Food Security and Poverty; Productivity Analysis.
Ano: 2003 URL: http://purl.umn.edu/44561
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World water demand and supply, 1990 to 2025: scenarios and issues AgEcon
Seckler, David; Amarasinghe, Upali A.; Molden, David J.; de Silva, Radhika; Barker, Randolph.
Presents two alternative scenarios of water demand and supply for 118 countries over the 1990 to 2025 period and develops indicators of water scarcity for each country and for the world as a whole. This study is the first step in IWMI's long-term research goal: to determine the extent and depth of water scarcity, its consequences for individual countries and what can be done about it.
Tipo: Report Palavras-chave: Irrigation management; Water balance; River basins; Basin irrigation; Water use efficiency; Water supply; Water requirements; Domestic water; Water scarcity; Water demand; Water shortage; Irrigated farming; Productivity; Food security; Recycling; Rice; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty.
Ano: 1998 URL: http://purl.umn.edu/61108
Registros recuperados: 8
Primeira ... 1 ... Última
 

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