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Baudron, FrédéricCorbeels, MarcMonicat, F.Giller, Ken E.[Cotton expansion and biodiversity loss in African savannahs, opportunities and challenges for conservation agriculture : A review paper based on two case studies]Cotton expansion and biodiversity loss in African savannahs, opportunities and challenges for conservation agriculture : A review paper based on two case studies

This is a follow-up paper describing experiences gained from the bean (Phaseolus vulgaris L.) seed strategy in Malawi, published in the Journal of Sustainable Agriculture in 2000. The strategy included: informal seed multiplication using smallholder farmers; informal seed distribution using groce...


Chirwa, RowlandAggarwal, VDPhiri, MARMwenda, ARE[Experiences in implementing the bean seed strategy in Malawi]Experiences in implementing the bean seed strategy in Malawi

Ethiopia is cited as one of the centres of sorghum diversity. In order to assess the on-farm genetic resources management of sorghum various research methodologies were employed. These were focus group interviews with 360 farmers, key informant interviews with 60 farmers and development agents an...


Mekbib, FBjornstad, A.Sperling, L.Synnevag, G[Factors shaping on-farm genetic resources of sorghum [Sorghum bicolor (L.) Moench] in the centre of diversity, Ethiopia]Factors shaping on-farm genetic resources of sorghum [Sorghum bicolor (L.) Moench] in the centre of diversity, Ethiopia

Crop promotion is critical for market creation and rural growth in Africa. How to achieve this for crops, other than major staples (e.g., maize) and traditional export crops (e.g., tea), remains a problem since most African countries tend to focus policy attention to major staples and traditional...


Chianu, J.N.Ohiokpehai, OVanlauwe, BernardAdesina, A.A.Groot, Hugo deSanginga, Nteranya[Promoting a versatile but yet minor crop : Soybean in the farming systems of Kenya]Promoting a versatile but yet minor crop : Soybean in the farming systems of Kenya

Canavalia ensiformis, Crotalaria grahamiana, Dolichos lablab, Mucuna pruriens, Tephrosia vogellii and Tithonia diversifolia were evaluated as potential species for soil fertility replenishment in on-farm adaptive trials, farm visits and field days in Tororo District, eastern Uganda. Farmers used ...


Nyende, PDelve, Robert J.[Farmer participatory evaluation of legume cover crop and biomass transfer technologies for soil fertility improvement using farmer criteria, preference ranking and logit regression analysis]Farmer participatory evaluation of legume cover crop and biomass transfer technologies for soil fertility improvement using farmer criteria, preference ranking and logit regression analysis

Strong gradients of decreasing soil fertility are found with increasing distance from the homestead within smallholder African farms, due to differential resource allocation. As nutrient use efficiency varies strongly along these gradients, such heterogeneity must be considered when designing soi...


Tittonell, Pablo A.Vanlauwe, BernardLeffelaar, P.A.Shepherd, Keith D.Giller, Ken E.[Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status]Exploring diversity in soil fertility management of smallholder farms in western Kenya. II. Within-farm variability in resource allocation, nutrient flows and soil fertility status

Land degradation is a major challenge limiting crop production in Ethiopia. Integrated soil and water conservation is widely applied as a means to reverse the trend and increase productivity. This study investigated the effects of such integrated approaches at two sites, Jeldu and Diga, in Wester...


Erkossa, TekluWilliams, Timothy O.Laekemariam, F.[Integrated soil, water and agronomic management effects on crop productivity and selected soil properties in Western Ethiopia]Integrated soil, water and agronomic management effects on crop productivity and selected soil properties in Western Ethiopia

Declining soil fertility is a major cause of low per capita food production on smallholder farms of sub-Saharan Africa. This study attempted to provide an empirical explanation of the factors associated with farmers’ decisions to adopt or not to adopt newly introduced integrated soil fertility ma...


Mugwe, JMugendi, DNMucheru-Muna, M.Merckx, R.Chianu, J.N.Vanlauwe, Bernard[Determinants of the decision to adopt integrated soil fertility management practices by smallholder farmers in the central highlands of Kenya]Determinants of the decision to adopt integrated soil fertility management practices by smallholder farmers in the central highlands of Kenya

The food price crisis has led to assumptions that food price rises are due to inadequate food production, and that such food insecurity is linked to seed insecurity. Hence, in response to high food prices, seed resources worth hundreds of millions of US dollars are being shipped into vulnerable f...


McGrath, S.Sperling, L.[The links between food security and seed security and seed security : facts and fiction that guide response]The links between food security and seed security and seed security : facts and fiction that guide response

Social capital has become a critical issue in agricultural development as it plays an important role in collective action, such as, management of common resources and collective marketing. Whilst literature exists on the role of social capital in the use and adoption of improved agricultural tech...


Njuki, JemimahMapila, MTZingore, ShamieDelve, Robert J.[The dynamics of social capital in influencing use of soil management options in the Chinyanja Triangle of southern Africa]The dynamics of social capital in influencing use of soil management options in the Chinyanja Triangle of southern Africa

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