The sub-humid zone of Central Kenya is water deficient due to regular intra-seasonal dry spells that constrain rain-fed crop production. A study was initiated to investigate the effects of minimum tillage and vegetative barriers on soil and water conservation and crop yield. There were two tillag...
Guto, Samuel
,
Ridder, N.A. de
,
Giller, Ken E.
,
Pypers, Pieter
,
Vanlauwe, Bernard
,
[Minimum tillage and vegetative barrier effects on crop yields in relation to soil water content in the Central Kenya highlands]
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Minimum tillage and vegetative barrier effects on crop yields in relation to soil water content in the Central Kenya highlands
The success of scaling out depends on a clear understanding of the factors that affect adoption of grain legumes and account for the dynamism of those factors across heterogeneous contexts of sub-Saharan Africa. We reviewed literature on adoption of grain legumes and other technologies in sub-Sah...
Farrow, Andrew
,
Ronner, E.
,
Brand, G. van den
,
Boahen, S.
,
Leonardo, W.
,
Woldemeskel, Endalkachew
,
Adjei-Nsiah, Samuel
,
Chikowo, Regis
,
Baijukya, Frederick P.
,
Ebanyat, Peter
,
Sangodele, S.
,
Sanginga, J.M.
,
Kantengwa, S.
,
Phiphira, L.
,
Woomer, P.L.
,
Ampadu-Boakye, T.
,
Baars, E.
,
Kanampiu, F.
,
Vanlauwe, Bernard
,
Giller, Ken E.
,
[From best fit technologies to best fit scaling: incorporating and evaluating factors affecting the adoption of grain legumes in Sub-Saharan Africa.]
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From best fit technologies to best fit scaling: incorporating and evaluating factors affecting the adoption of grain legumes in Sub-Saharan Africa.
Common bean and soybean yield poorly on smallholder farms in Rwanda. We evaluated the benefits of inoculation combined with P fertilizer and manure on yields of common bean and soybean in three agro-ecological zones (AEZs), and their residual effects on a subsequent maize crop. In the first seaso...
Rurangwa, E.
,
Vanlauwe, Bernard
,
Giller, Ken E.
,
[Benefits of inoculation, P fertilizer and manure on yields of common bean and soybean also increase yield of subsequent maize]
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Benefits of inoculation, P fertilizer and manure on yields of common bean and soybean also increase yield of subsequent maize
In recent years, many studies have demonstrated the heterogeneity of the smallholder production environment. Yet agronomic research for development (R4D) that aims to identify and test options for increasing productivity has not consistently adapted its approaches to such heterogeneous conditions...
Vanlauwe, Bernard
,
Coe, R.
,
Giller, Ken E.
,
[Beyond averages: new approaches to understand heterogeneity and risk of technology success or failure in smallholder farming]
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Beyond averages: new approaches to understand heterogeneity and risk of technology success or failure in smallholder farming
The World Bank argued that West Africa's Guinea Savannah zone forms part of “Africa's Sleeping Giant,” where increases in agricultural production could be an engine of economic growth, through expansion of cultivated land in sparsely populated areas. The district of Bougouni, in southern Mali, fa...
Ollenburger, M.H.
,
Descheemaeker, Katrien
,
Crane, Todd A.
,
Sanogo, O.M.
,
Giller, Ken E.
,
[Waking the Sleeping Giant: Agricultural intensification, extensification or stagnation in Mali's Guinea Savannah]
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Waking the Sleeping Giant: Agricultural intensification, extensification or stagnation in Mali's Guinea Savannah
Smallholder farmers in the Guinea savanna practise cereal-legume intercropping to mitigate risks of crop failure in mono-cropping. The productivity of cereal-legume intercrops could be influenced by the spatial arrangement of the intercrops and the soil fertility status. Knowledge on the effect o...
Kermah, M.
,
Franke, A.C.
,
Adjei-Nsiah, Samuel
,
Ahiabor, B.D.K.
,
Abaidoo, R.C.
,
Giller, Ken E.
,
[Maize-grain legume intercropping for enhanced resource use efficiency and crop productivity in the Guinea savanna of northern Ghana]
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Maize-grain legume intercropping for enhanced resource use efficiency and crop productivity in the Guinea savanna of northern Ghana
Wichern, Jannike
,
Heerwaarden, J. Van
,
Bruin, S. de
,
Descheemaeker, Katrien
,
Asten, Piet J.A. van
,
Giller, Ken E.
,
Wijk, Mark T. van
,
[Using household survey data to identify large-scale food security patterns across Uganda]
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Using household survey data to identify large-scale food security patterns across Uganda
Fraval, Simon
,
Hammond, James
,
Wichern, Jannike
,
Oosting, Simon J.
,
Boer, Imke J.M. de
,
Teufel, Nils
,
Lannerstad, Mats
,
Waha, Katharina
,
Pagella, Tim
,
Rosenstock, Todd S.
,
Giller, Ken E.
,
Herrero, Mario T.
,
Harris, David
,
Wijk, Mark T. van
,
[Making the most of imperfect data: A critical evaluation of standard information collected in farm household surveys]
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Making the most of imperfect data: A critical evaluation of standard information collected in farm household surveys
Cassava yields in Africa are small and it remains unclear which factors most limit yields. Using a series of farm surveys and on-farm and on-station trials in Uganda and western Kenya, we evaluated the importance of abiotic, biotic and associated crop management constraints for cassava production...
Fermont, A.M.
,
Asten, Piet J.A. van
,
Tittonell, Pablo A.
,
Wijk, Mark T. van
,
Giller, Ken E.
,
[Closing the cassava yield gap: an analysis from smallholder farms in East Africa]
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Closing the cassava yield gap: an analysis from smallholder farms in East Africa
It is widely recognized that mineral fertilizers must play an important part in improving agricultural productivity in western Kenyan farming systems. This paper suggests that for this goal to be realized, farmers’ knowledge must be strengthened to improve their understanding of fertilizers and t...
Misiko, Michael T.
,
Tittonell, Pablo A.
,
Giller, Ken E.
,
Richards P
,
[Strengthening understanding and perceptions of mineral fertilizer use among smallholder farmers: Evidence from collective trials in western Kenya]
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Strengthening understanding and perceptions of mineral fertilizer use among smallholder farmers: Evidence from collective trials in western Kenya