Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AgEcon (10) Autor Namara, Regassa E. (10) Awulachew, Seleshi Bekele (3) Barry, Boubacar (3) Hagos, Fitsum (3) Ayana, Mekonnen (2) Bossio, Deborah A. (2) Makombe, Godswill (2) Adeoti, Adetola I. (1) Barker, Randolph (1) Forkuor, Gerald (1) Giordano, Meredith A. (1) Gumma, Murali Krishna (1) Kamara, Abdul B. (1) Kortatsi, Benony (1) Laube, Wolfram (1) Makambe, Godswill (1) Nagar, Rashmi K. (1) Ogilvie, Andrew (1) Owusu, Eric S. (1) Rebelo, Lisa-Maria (1) Mais... Palavra-chave Crop Production/Industries (7) Irrigated farming (5) Poverty (5) Agricultural and Food Policy (4) Community/Rural/Urban Development (4) Farm Management (4) Food Security and Poverty (4) Agribusiness (3) Economic aspects (3) Gender (3) Irrigation schemes (3) Resource /Energy Economics and Policy (3) Consumer/Household Economics (2) Crop production (2) Cropping patterns (2) Cropping systems (2) Efficiency (2) Irrigation systems (2) Labor and Human Capital (2) Manual pumps (2) Mais... Tipo do documento Report (6) Working or Discussion Paper (4) Ano 2011 (3) 2010 (1) 2009 (1) 2007 (1) 2006 (1) 2005 (2) 2003 (1) Mais... País United States (10) Idioma Inglês (10)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 10 Primeira ... 1 ... Última Treadle pump irrigation and poverty in Ghana AgEcon Adeoti, Adetola I.; Barry, Boubacar; Namara, Regassa E.; Kamara, Abdul B.; Titiati, Atsu. Treadle pump (TP) technology has been promoted by Enterprise Works Worldwide (EWW) as an alternative to the traditional rope and bucket irrigation that is necessary to overcome the challenge of uncertain and inadequate rainfall for agricultural production. The aim is to improve output, increase incomes and reduce poverty among farm households. This study examines the strategies used for dissemination of the TP and the dynamics of its adoption and impacts, with a special focus on poverty reduction. The results of the study reveal that time and labor savings for irrigation, increased size of irrigated areas and lack of fuel requirements are the attractive features of the TP for those who adopt it. Adoption of TP increases land and labor productivities; and... Tipo: Report Palavras-chave: Manual pumps; Irrigation systems; Water lifting; Poverty; Farm income; Gender; Community/Rural/Urban Development; Consumer/Household Economics; Food Security and Poverty; Labor and Human Capital. Ano: 2007 URL: http://purl.umn.edu/44520 Adoption and impacts of microirrigation technologies: Empirical results from selected localities of Maharashtra and Gujarat states of India AgEcon Namara, Regassa E.; Upadhyay, Bhawana; Nagar, Rashmi K.. This report analyzes the economics of alternative microirrigation technologies ranging from low-cost drip and sprinkler systems to the capital-intensive systems, the determinants of adoption of microirrigation technology, the poverty outreach of the different microirrigation systems, and the sustainability implications of microirrigation adoption. Tipo: Report Palavras-chave: Irrigation systems; Microirrigation; Models; Poverty; Rural women; Cropping systems; Food security; Economic aspects; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Food Security and Poverty. Ano: 2005 URL: http://purl.umn.edu/44543 Assessing the outcomes of IWMI’s research and interventions on irrigation management transfer AgEcon Giordano, Meredith A.; Samad, Madar; Namara, Regassa E.. The purpose of this paper is to summarize IIMI/IWMI's past research and interventions related to irrigation management transfer and to document, to the extent possible, the academic, policy, and technical outcomes of these efforts. The application of a range of direct and indirect measurement techniques suggests an overall positive contribution from IWMI to IMT theory and application. Tipo: Report Palavras-chave: Irrigation management; Participatory management; Privatization; Water users associations; Farmers associations; Gender; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Farm Management; Financial Economics. Ano: 2006 URL: http://purl.umn.edu/44524 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 Reducing Poverty through Investments in Agricultural Water Management: Poverty and Gender Issues and Synthesis of Sub-Saharan Africa Case Study Reports AgEcon van Koppen, Barbara; Namara, Regassa E.; Safilios-Rothschild, Constantina. Tipo: Working or Discussion Paper Palavras-chave: Irrigated farming; Investment; Poverty; Gender; Cropping systems; Labor; Manual pumps; Case studies; Crop Production/Industries; Labor and Human Capital; Public Economics; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy. Ano: 2005 URL: http://purl.umn.edu/92404 A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia AgEcon Makambe, Godswill; Namara, Regassa E.; Hagos, Fitsum; Awulachew, Seleshi Bekele; Ayana, Mekonnen; Bossio, Deborah A.. Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains... Tipo: Working or Discussion Paper Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Agricultural and Food Policy; Crop Production/Industries; Production Economics. Ano: 2011 URL: http://purl.umn.edu/118298 A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia AgEcon Makombe, Godswill; Namara, Regassa E.; Hagos, Fitsum; Awulachew, Seleshi Bekele; Ayana, Mekonnen; Bossio, Deborah A.. Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains... Tipo: Working or Discussion Paper Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Crop Production/Industries; Farm Management. Ano: 2011 URL: http://purl.umn.edu/113012 Shallow groundwater in the Atankwidi Catchment of the White Volta Basin: current status and future sustainability AgEcon Barry, Boubacar; Kortatsi, Benony; Forkuor, Gerald; Gumma, Murali Krishna; Namara, Regassa E.; Rebelo, Lisa-Maria; van den Berg, Joost; Laube, Wolfram. The Atankwidi Catchment, which lies in the White Volta Basin in West Africa, is intensively cultivated by locals for economic gains. During dry seasons, farmers irrigate their crops, chiefly tomatoes, using shallow groundwater harvested from shallow ponds they dig using simple tools like an axe, hoe, bucket and bowls. Recent expansion in cultivated areas has brought to the fore the need to estimate the volume of shallow groundwater stored in the catchment’s underlying aquifer and to what extent it can sustain the incremental growth in irrigated areas. Tipo: Report Palavras-chave: Groundwater irrigation; Aquifers; River basins; Catchment areas; Irrigation practices; Remote sensing; Mapping; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy. Ano: 2010 URL: http://purl.umn.edu/112969 Importance of irrigated agriculture to the Ethiopian economy: Capturing the direct net benefits of irrigation AgEcon Hagos, Fitsum; Makombe, Godswill; Namara, Regassa E.; Awulachew, Seleshi Bekele. Irrigation development has been identified as a means to stimulate economic growth and rural development in Ethiopia. However, little attempt has been made to quantify the contribution of irrigation to national income. Using data from selected irrigation schemes, representing small, medium and large-scale schemes of modern or traditional typologies; the present coverage and planned growth of irrigation, actual and expected contributions of irrigation to the national economy were quantified following the approach of adjusted gross margin analysis. Our results show that irrigation yields 219.7% higher income compared to the rainfed system while its current and future contribution to agricultural GDP is estimated to be about 5.7 and 12% although irrigation... Tipo: Report Palavras-chave: Irrigated farming; National income; Economic growth; Crops; Prices; Sensitivity analysis; Crop management; Irrigation schemes; Ethiopia; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Health Economics and Policy; Land Economics/Use; Production Economics; Risk and Uncertainty. Ano: 2009 URL: http://purl.umn.edu/61100 An overview of the development challenges and constraints of the Niger Basin and possible intervention strategies AgEcon Namara, Regassa E.; Barry, Boubacar; Owusu, Eric S.; Ogilvie, Andrew. The Niger River Basin covers 7.5% of the African continent and is shared between nine riparian countries. The human population of the basin is growing at an average annual rate of about 3%, which makes the Niger River Basin one of the areas with the highest fertility rates in the world. The desert margin is expanding; climate change is negatively impacting rainfall; and urbanization, industrialization, and the human and livestock population are threatening the quantity and quality of available water resources. The basin population already suffers from chronic poverty. Based on a literature review, this paper suggests some key water-related and other interventions that are capable of easing the basin's development challenges. Tipo: Working or Discussion Paper Palavras-chave: River basin development; Poverty; Social aspects; Climate change; Agriculture sector; Water governance; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Resource /Energy Economics and Policy; Risk and Uncertainty. Ano: 2011 URL: http://purl.umn.edu/118299 Registros recuperados: 10 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco