Sweet Potato

A survey of traditional processing of sweet potato flour for amala, consumption pattern of sweet potato amala and awareness of orange-fleshed sweet potato (OFSP)

Sweet potato is a food crop that is increasingly being recognized as having an important role to play in improving household and national food security, health and livelihoods of poor families in sub-Saharan Africa. A baseline survey was conducted in six states in Southwest Nigeria on traditional processing methods of sweet potato flour for amala (a stiff paste meal), consumption status of sweet potato amala and level of awareness of orange-fleshed sweet potato variety.

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Getting a piece of the pie: An analysis of factors influencing women's production of sweetpotato in Northern Nigeria

This paper examines the conditions and factors that create opportunities for women to engage in market-oriented crop production. It uses as a case study of Nasarawa and Kwara states in northern Nigeria, where women have started to cultivate sweetpotato, a crop traditionally grown by men.

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A large-scale intervention to introduce orange sweet potato in rural Mozambique increases vitamin A intakes among children and women

ë_-Carotene-rich orange sweet potato (OSP) has been shown to improve vitamin A status of infants and young children in controlled efficacy trials and in a small-scale effectiveness study with intensive exposure to project inputs. However, the potential of this important food crop to reduce the risk of vitamin A deficiency in deficient populations will depend on the ability to distribute OSP vines and promote its household production and consumption on a large scale.

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Journal Article

Gender and relative economic efficiency in sweet potato farms of Imo State, Nigeria: a stochastic cost frontier approach

This study employed the stochastic frontier cost function to measure the level of economic efficiency and its determinants in small-scale sweet potato production in Imo State, Nigeria on gender basis. A multi-stage random sampling technique was used to select 120 sweet potato farmers (64 females and 56 males) in the State in the year 2008. The parameters of the stochastic frontier cost function were estimated using the maximum likelihood method.

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Farmers' personal characteristics in assuring agricultural productivity: Lessons from sweet potato farmers in Teso, Uganda

Farmers constantly require incentives to stay in production. This paper discusses findings on farmers' personal characteristics salient in production among sweet potato farmers from the study done in Teso, Uganda. Both fanners and agricultural advisers consulted agreed that the weather is a big factor in agricultural production. Over 91% of the farmers expressed positive attitudes towards growing sweet potatoes which spelt their interest in farming. Conditions under which farmers worked affected enterprise productivity.

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Determinants of smallholder sweet potato farmers' participation in different market options: the case of Vihiga County, Kenya

Market participation has a potential to increase farmers' rural incomes and employment opportunities especially if farmers concentrate on production and marketing of local crops requiring low inputs such as sweet potatoes. The purpose of this research was to investigate the factors that determine farmers' shift in market participation from village to regional market in Vihiga County. Cross-sectional data was collected and a multinomial logit model was used for the analysis.

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Journal Article

Fertility, agricultural labor supply, and production: instrumental variable evidence from Uganda

Human fertility is likely to affect agricultural production through its effect on the supply of agricultural labor. Using the fact that in traditional, patriarchal societies sons are often preferred to daughters, we isolated exogenous variation in the number of children born to a mother and related it to agricultural labor supply and production outcomes in Uganda - a country that combines a dominant agricultural sector with one of the highest fertility rates in the world. We found that fertility has a sizable negative effect on household labor allocation to subsistence agriculture.

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Journal Article

Gender differences in access and use of selected productive resources among sweet potato farmers in Uganda

Background: In spite of women making up the biggest workforce in food production, processing and preparation in Africa, little is known about how women access production resources, especially concerning sweet potato enterprise. Based on the sex of the household head, we compared male and female sweet potato farmers' access to agricultural information, credit and extension in Uganda. Differences in sweet potato production techniques, contribution of sweet potato to household food security or cash income, off-farm income sources and membership to farmers' group were also determined.

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Journal Article

Factors Influencing Diversity of Farmers' Varieties of Sweet Potato in Uganda: Implications for Conservation

Factors Influencing Diversity of Farmers' Varieties of Sweet Potato in Uganda: Implications for Conservation. There is increasing concern that agricultural intensification is causing loss of crop biodiversity due to displacement of traditional farmers' varieties by a small number of improved cultivars. Using ethnobotanical surveys, we assessed the implication of adoption of new sweet potato (Ipomoea batatas) cultivars on the maintenance of farmers' varieties in Uganda. Other factors influencing varietal diversity were also assessed.

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Upscaling the orange-fleshed sweetpotato in East and Central Africa

The Orange-Fleshed Sweetpotato (OFSP) is a wonder crop - 125 g supply the recommended daily vitamin A for a child below five years of age. This would combat vitamin A deficiency, estimated in 27 million children in East and Central Africa. However, OFSP has not readily been available among resource-poor farmers. The Dissemination of New Agricultural Technologies in Africa (DONATA) project aimed at popularising OFSP uptake and utilisation in Ethiopia, Kenya, Rwanda, Tanzania and Uganda. The project employed a multistakeholder approach to promote proven OFSP technologies.

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Conference materials