Seed analysis can indicate differences in micronutrient availability between soils. Comparison of Phaseolus vulgaris L. with published analytical data indicated that the micronutrients most limiting for N2-fixation and growth in parts of East and soLithem Africa were Mo and Cu. Significant differ...
Brodrick, SJ
,
Amijee, F
,
Kipe-Nolt, Judith A.
,
Giller, Ken E.
,
[Seed analysis as a means of identifying micronutrient deficiencies of Phaseolus vulgaris L. in the tropics]
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Seed analysis as a means of identifying micronutrient deficiencies of Phaseolus vulgaris L. in the tropics
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...
Ebanyat, Peter
,
Ridder, N.A. de
,
Jager, A. de
,
Delve, Robert J.
,
Bekunda, Mateete A.
,
Giller, Ken E.
,
[Drivers of land use change and household determinants of sustainability in smallholder farming systems of Eastern Uganda]
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Drivers of land use change and household determinants of sustainability in smallholder farming systems of Eastern Uganda
African smallholder farming systems are complex, dynamic systems with many interacting biophysical subcomponents. In these systems the major inputs and outputs are managed by human agency – the farmers. To analyse potential developmental pathways of smallholder farming systems in sub-Saharan Afri...
Wijk, Mark T. van
,
Tittonell, Pablo A.
,
Rufino, Mariana C.
,
Herrero, Mario T.
,
Pacini, C.
,
Ridder, N.A. de
,
Giller, Ken E.
,
[Identifying key entry-points for strategic management of smallholder farming systems in sub-Saharan Africa using the dynamic farm-scale simulation model NUANCES-FARMSIM]
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Identifying key entry-points for strategic management of smallholder farming systems in sub-Saharan Africa using the dynamic farm-scale simulation model NUANCES-FARMSIM
Soil fertility gradients develop on smallholder farms due to preferential allocation of inputs. A multi-location on-farm trial was
conducted in Meru South, Central Kenya whose overall aim was to test minimum tillage and crop-residue retention practices in
socio-ecological niches across heteroge...
Guto, SN
,
Pypers, Pieter
,
Vanlauwe, Bernard
,
Ridder, N.A. de
,
Giller, Ken E.
,
[Socio-ecological niches for minimum tillage and crop-residue retention in continuous maize cropping systems in smallholder farms of central Kenya]
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Socio-ecological niches for minimum tillage and crop-residue retention in continuous maize cropping systems in smallholder farms of central Kenya
Evaluation of lifetime productivity is sensible to target interventions for improving productivity of smallholder dairy systems in the highlands of East Africa, because cows are normally not disposed of based on productive reasons. Feeding strategies and involuntary culling may have long-term eff...
Rufino, Mariana C.
,
Herrero, Mario T.
,
Wijk, Mark T. van
,
Hemerink, L.
,
Ridder, N.A. de
,
Giller, Ken E.
,
[Lifetime productivity of dairy cows in smallholder farming systems of the Central highlands of Kenya]
,
Lifetime productivity of dairy cows in smallholder farming systems of the Central highlands of Kenya
Stages in the diagnosis of an interveinal leaf chlorosis in bean in the Usambara Mountains of northern Tanzania are described. Leaf tissue analysis, soil analysis, a 25 factorial trial with treatments of nitrogen, phosphorus, potassium, the trace elements copper and zinc and lime at one location ...
Smithson, James Brady
,
Edje, O.T.
,
Giller, Ken E.
,
[Diagnosis and correction of soil nutrient problems of common beans (Phaseolus vulgaris) in the Usambara mountains of Tanzania]
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Diagnosis and correction of soil nutrient problems of common beans (Phaseolus vulgaris) in the Usambara mountains of Tanzania
Western Kenya is one of Africa’s most densely populated rural areas, characterised by intensive smallholder crop–livestock systems on degraded lands managed with small inputs of mineral fertiliser and animal manure. Competing uses for crop residues and other organic resources often results in poo...
Castellanos-Navarrete, A.
,
Tittonell, Pablo A.
,
Rufino, Mariana C.
,
Giller, Ken E.
,
[Feeding, crop residue and manure management for integrated soil fertility management—A case study from Kenya]
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Feeding, crop residue and manure management for integrated soil fertility management—A case study from Kenya
Resource use and management are major determinants of the food self-sufficiency of smallholder farmers in sub-Saharan Africa. A study was conducted in Rwanda in two contrasting agro-ecological zones (Central plateau and Buberuka) to characterise farms, quantify their resource flows, and evaluate ...
Bucagu, C.
,
Vanlauwe, Bernard
,
Wijk, Mark T. van
,
Giller, Ken E.
,
[Resource use and food self-sufficiency at farm scale within two agro-ecological zones of Rwanda]
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Resource use and food self-sufficiency at farm scale within two agro-ecological zones of Rwanda
In West Africa predictions of future changes in climate and especially rainfall are highly uncertain, and up to now no long-term analyses are available of the effects of climate on crop production. This study analyses long-term trends in climate variability at N’Tarla and Sikasso in southern Mali...
Traoré, B.
,
Corbeels, Marc
,
Wijk, Mark T. van
,
Rufino, Mariana C.
,
Giller, Ken E.
,
[Effects of climate variability and climate change on crop production in southern Mali]
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Effects of climate variability and climate change on crop production in southern Mali