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	Provedor de dados AgEcon (5) Autor Ajayi, Olu Clifford (5) Akinnifesi, Festus K. (2) Chirwa, Teddy (1) Franzel, Steven Charles (1) Jera, R. (1) Kanjipite, W. (1) Katanga, Roza (1) Kuntashula, Elias (1) Kwesiga, Freddie (1) Mafongoya, Paramu (1) Matakala, Patrick (1) Phiri, Donald (1) Place, Frank (1) Sileshi, G. (1) Mais... Palavra-chave Environmental Economics and Policy (2) Food Security and Poverty (2) Land Economics/Use (2) Research and Development/Tech Change/Emerging Technologies (2) Sustainable agriculture (2) Agricultural Policy (1) Agricultural and Food Policy (1) Agricultural technology (1) Agroforestry (1) Benefit-cost analysis (1) Community/Rural/Urban Development (1) Consumer/Household Economics (1) Crop Production/Industries (1) Crop yields (1) Demand and Price Analysis (1) Ecosystem services (1) Externalities (1) Fallows (1) Farm Management (1) Financial analysis (1) Mais... Tipo do documento Conference Paper or Presentation (2) Journal Article (2) Working or Discussion Paper (1) Ano 2009 (1) 2008 (2) 2006 (1) 2005 (1) País United States (5) Idioma Inglês (5)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Environmental Conservation and Food Security in Developing Countries: Bridging the Disconnect AgEcon Ajayi, Olu Clifford; Matakala, Patrick. In many developing countries, environmental issues are often sacrificed for immediate food production requirements because of perceived tradeoff between two. Some production systems exist however that offers opportunities for achieving the two seemingly divergent objectives because they have the characteristics to produce joint outputs; food production and environmental conservation, but their adoption in farming communities is socially sub-optimal despite proven technological success. Using natural resource economics framework, this study highlights the reasons for the low adoption of such technologies taking Agroforestry technologies as a case study and, uses externality theory to provide environmental economic logic for developing incentives to... Tipo: Conference Paper or Presentation Palavras-chave: Externalities; Agricultural Policy; Agricultural technology; Sustainability; Ecosystem services; Environmental Economics and Policy; Food Security and Poverty. Ano: 2006 URL: http://purl.umn.edu/25636 Improved Fallows in Eastern Zambia: History, Farmer Practice and Impacts AgEcon Kwesiga, Freddie; Franzel, Steven Charles; Mafongoya, Paramu; Ajayi, Olu Clifford; Phiri, Donald; Katanga, Roza; Kuntashula, Elias; Place, Frank; Chirwa, Teddy. The decline in soil fertility in smallholder systems is a major factor inhibiting equitable development in much of sub-Saharan Africa. Some areas fallow in order to strength soil fertility for later planting, but as populations increase, demand follows. and continuous cropping becomes the norm and there is a reduction in yields. This case study summarizes the development of improved tree fallows by researchers and farmers in eastern Zambia to help solve the problem of poor soil fertility. Many farmers are finding that by using improved fallows, they can substitute relatively small amounts of land and labor for cash, which they would need to buy mineral fertilizer. The study has three phases: the historical background (phase 1); an assessment of problems,... Tipo: Working or Discussion Paper Palavras-chave: Zambia; Fallows; Crop yields; Soil fertility; Crop Production/Industries. Ano: 2005 URL: http://purl.umn.edu/59247 Labor requirements and profitability of alternative soil fertility replenishment technologies in Zambia AgEcon Ajayi, Olu Clifford; Akinnifesi, Festus K.. Low soil fertility is a major concern in agricultural productivity and development policy discourse in sub-saharan Africa. The problem is exacerbated by government withdrawal from fertilizer input markets and the inability of private sector operators to fill the gap. This warranted a search for other nutrient sources to supplement chemical fertilizers. Based on field data collected in Zambia, this study assessed the labor inputs implications of “improved tree fallows”, continuous maize cropping with and without mineral fertilizer and, evaluated the financial profitability of the different land use systems. Results show that agroforestry-based land use systems are more profitable (NPV between $233 and $309 per ha) than farmers’ practice of continuous maize... Tipo: Conference Paper or Presentation Palavras-chave: Agroforestry; Improved tree fallows; Financial analysis; Production economics; Southern Africa; Sustainable agriculture; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Land Economics/Use; Production Economics; Research and Development/Tech Change/Emerging Technologies. Ano: 2008 URL: http://purl.umn.edu/52185 Labour inputs and financial profitability of conventional and agroforestry-based soil fertility management practices in Zambia AgEcon Ajayi, Olu Clifford; Akinnifesi, Festus K.; Sileshi, G.; Kanjipite, W.. Several agro-ecological practices have been developed to increase the range of soil fertility management options available to farmers, but little information is available on their labour input requirement and profitability relative to conventional practices. This study used a multiple visit cost-route method to estimate labour inputs and financial profitability of agroforestry-based and conventional (with and without fertiliser) soil fertility management practices in eastern Zambia. Results show that aggregated over a five-year cycle, labour inputs used under agroforestry practices were lower than fertilised maize fields but higher than non-fertilised continuous cropped maize. Agroforestry practices were more profitable (NPV ranging between $233 and $327... Tipo: Journal Article Palavras-chave: Benefit-cost analysis; Impact assessment; Land use management; Project analysis; Sustainable agriculture; Demand and Price Analysis; Land Economics/Use. Ano: 2009 URL: http://purl.umn.edu/55046 Logistic modelling of smallholder livestock farmers’ adoption of tree-based fodder technology in Zimbabwe AgEcon Jera, R.; Ajayi, Olu Clifford. Based on field data collected from 131 small scale dairy farmers that were randomly selected from four agro-ecological zones, this study assessed the potential of adoption of fodder bank technology as a means for improving livestock production and income generation for smallholder farmers in Zimbabwe. Using a logit modelling approach, it also identified the drivers of adoption of the technology by analysing the influence of household characteristics and ecological factors on farmers’ decision to adopt the technology. The model correctly predicted 75% of observed adoption and non-adoption by farmers. Results reveal that dairy herd size, land holding size, membership of dairy association and agro-ecological potential are the key factors influencing farmers’... Tipo: Journal Article Palavras-chave: Livestock Production/Industries; Research and Development/Tech Change/Emerging Technologies. Ano: 2008 URL: http://purl.umn.edu/44033 Registros recuperados: 5 Primeira ... 1 ... Última

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