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Nitrogen (N) deficiency is a major constraint to the productivity of the African smallholder farming systems. Grain, green manure and forage legumes have the potential to improve the soil N fertility of smallholder farming systems through biological N2-fixation. The N2-fixation of bean (Phaseolus...


Ojiem, JOVanlauwe, BernardRidder, N.A. deGiller, Ken E.[Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms]Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms

The role of livestock in nitrogen cycling in mixed crop-livestock farming systems of sub-Saharan Africa was explored. Cattle were fed a range of diets to investigate the effects on partitioning of nitrogen between urine and faeces and on the chemical composition of the manures produced. The trade...


Delve, Robert J.Cadisch, GeorgTanner, J.C.Thorpe, W.R.Thorne, Peter J.Giller, Ken E.[Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa]Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa
Masvaya, ENNyamangara, JusticeNyawasha, RWZingore, ShamieDelve, Robert J.Giller, Ken E.[Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe]Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe
Karanja, S.Herrero, Mario T.Ridder, N.A. deBaijukya, Frederick P.Mwale, M.Kaizzi, C.Mapfumo, PaulWatat, C.Issaka, R.Sanogo, O.Kungu, J.Mugendi, D.Quirós, CarlosTittonell, Pablo A.González Estrada, E.Giller, Ken E.[Income, food security, nutrients and labour: a comparison of key aspects of African smallholder farming systems using IMPACT]Income, food security, nutrients and labour: a comparison of key aspects of African smallholder farming systems using IMPACT

In African smallholder agriculture, improved farm-scale understanding of the interaction between the household, crops, soils and livestock is required to develop appropriate strategies for improving productivity. A combination of models was used to analyse land use and labour allocation strategie...


Zingore, ShamieGonzález Estrada, E.Delve, Robert J.Herrero, Mario T.Dimes, John P.Giller, Ken E.[An integrated evaluation of strategies for enhancing productivity and profitability of resource-constrained smallholder farms in Zimbabwe]An integrated evaluation of strategies for enhancing productivity and profitability of resource-constrained smallholder farms in Zimbabwe
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

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

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