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Vandeplas, IVanlauwe, BernardDriessens, LMerckx, R.Deckers, J.[Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya]Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya

Research on agricultural technology adoption generally occurs ex post, after the introduction of a technology. In this paper, the authors use a choice experiment to reveal farmers’ preferences for new agricultural technologies ex ante, before new technologies are developed and introduced. The aut...


Lambrecht, I.Vranken, L.Merckx, R.Vanlauwe, BernardMaertens, M.[Ex ante appraisal of agricultural research and extension: a choice experiment on climbing beans in Burundi]Ex ante appraisal of agricultural research and extension: a choice experiment on climbing beans in Burundi

Intensification of smallholder agriculture in sub-Saharan Africa is necessary to address rural poverty and natural resource degradation. Integrated soil fertility management (ISFM) is a means to enhance crop productivity while maximizing the agronomic efficiency (AE) of applied inputs, and can th...


Vanlauwe, BernardDescheemaeker, KatrienGiller, Ken E.Huising, JeroenMerckx, R.Nziguheba, GeneroseZingore, Shamie[Integrated soil fertility management in sub-Saharan Africa: unravelling local adaptation Integrated soil fertility management in sub-Saharan Africa: unravelling local adaptation]Integrated soil fertility management in sub-Saharan Africa: unravelling local adaptation Integrated soil fertility management in sub-Saharan Africa: unravelling local adaptation

The functioning of trees as a safety-net for capturing nutrients leached beyond the reach of crop roots was evaluated by investigating changes in exchangeable cations (Ca, Mg, and K) and pH in a wide range of medium to long term alley cropping trials in the derived savanna of West Africa, compare...


Vanlauwe, BernardAihou, K.Tossah, B.K.Diels, J.Sanginga, NteranyaMerckx, R.[Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone]Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone

Soil fertility decline is a major constraint to bean (Phaseolus vulgaris L.) and maize (Zea mays) production in the Central Highlands of Burundi. Nutrient sources, specifically fertilizers, are paramount to increasing the production in the regions. Hence, improving fertilizer use efficiency is co...


Niyuhire, M.C.Pypers, PieterVanlauwe, BernardNziguheba, GeneroseRoobroeck, D.Merckx, R.[Profitability of diammonium phosphate use in bush and climbing bean-maize rotations in smallholder farms of Central Burundi]Profitability of diammonium phosphate use in bush and climbing bean-maize rotations in smallholder farms of Central Burundi

Harvesting young cassava leaves as a vegetable is a common practice in the Democratic Republic of Congo (DR Congo). However, information on its effects on growth and yield of cassava is scarce. Multi-locational trials were conducted on farmers’ fields in the province of South Kivu, DR Congo, duri...


Munyahali, W.Pypers, PieterSwennen, R.L.Walangululu, J.Vanlauwe, BernardMerckx, R.[Responses of cassava growth and yield to leaf harvesting frequency and NPK fertilizer in South Kivu, Democratic Republic of Congo]Responses of cassava growth and yield to leaf harvesting frequency and NPK fertilizer in South Kivu, Democratic Republic of Congo
Nziguheba, GeneroseTossah, B.K.Diels, J.Franke, A.C.Aihou, K.Iwuafor, E.N.O.Nwoke, CMerckx, R.[Assessment of nutrient deficiencies in maize in nutrient omission trials and long-term field experiments in the West African Savanna]Assessment of nutrient deficiencies in maize in nutrient omission trials and long-term field experiments in the West African Savanna

Root characteristics associated with phosphorus (P) uptake under limiting soil-P conditions were examined in two sets of greenhouse experiments. Average diameter and length of soybean, cowpea, maize and sorghum roots were assessed after 7 weeks in three low-P soils amended with P fertilizer at 0,...


Nwoke, O.C.Diels, J.Abaidoo, R.C.Nziguheba, GeneroseMerckx, R.[Organic acids in the rhizosphere and root characteristics of soybean (Glycine max) and cowpea (Vigna unguiculata) in relation to phosphorus uptake in poor savanna soils]Organic acids in the rhizosphere and root characteristics of soybean (Glycine max) and cowpea (Vigna unguiculata) in relation to phosphorus uptake in poor savanna soils

Background and aims Incorporating soybean (Glycine max) genotypes with a high nitrogen fixation potential into cropping systems can sustainably improve the livelihoods of smallholder farmers in Western Kenya. Nitrogen fixation is, however, often constrained by low phosphorus (P) availability. The...


Vandamme, E.Renkens, M.Pypers, PieterSmolders, E.Vanlauwe, BernardMerckx, R.[Root hairs explain P uptake efficiency of soybean genotypes grown in a Pdeficient Ferralsol]Root hairs explain P uptake efficiency of soybean genotypes grown in a Pdeficient Ferralsol

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

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