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Journal Article 2007

Autor: Ojiem, JO Vanlauwe, Bernard Ridder, N.A. de Giller, Ken E.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43889

Investigación en Agricultura
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Ojiem, JO ,  Vanlauwe, Bernard ,  Ridder, N.A. de ,  Giller, 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
Journal Article 2008

Autor: Zingore, Shamie Delve, Robert J. Nyamangara, Justice Giller, Ken E.

Manure is a key nutrient resource on smallholder farms in the tropics, especially on poorly buffered sandy soils, due to its multiple benefits for soil fertility. Farmers preferentially apply manure to fields closest to homesteads (homefields), which are more fertile than fields further away (out...

Enlace original: https://cgspace.cgiar.org/handle/10568/43884

Investigación en Agricultura
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Zingore, Shamie ,  Delve, Robert J. ,  Nyamangara, Justice ,  Giller, Ken E. ,  [Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms] ,  Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms
Journal Article 2009

Autor: Masvaya, EN Nyamangara, Justice Nyawasha, RW Zingore, Shamie Delve, Robert J. Giller, Ken E.
Enlace original: https://cgspace.cgiar.org/handle/10568/43375

Investigación en Agricultura
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Masvaya, EN ,  Nyamangara, Justice ,  Nyawasha, RW ,  Zingore, Shamie ,  Delve, 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
Journal Article 2015-08-12

Autor: Rusinamhodzi, Leonard Wijk, Mark T. van Corbeels, Marc Rufino, Mariana C. Giller, Ken E.
Enlace original: https://cgspace.cgiar.org/handle/10568/68054

Investigación en Agricultura
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Rusinamhodzi, Leonard ,  Wijk, Mark T. van ,  Corbeels, Marc ,  Rufino, Mariana C. ,  Giller, Ken E. ,  [Maize crop residue uses and trade-offs on smallholder crop-livestock farms in Zimbabwe: economic implications of intensification] ,  Maize crop residue uses and trade-offs on smallholder crop-livestock farms in Zimbabwe: economic implications of intensification
Journal Article 1993

Autor: Smithson, James Brady Edje, O.T. Giller, Ken E.

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 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/42735

Investigación en Agricultura
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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] ,  Diagnosis and correction of soil nutrient problems of common beans (Phaseolus vulgaris) in the Usambara mountains of Tanzania
Journal Article 2008

Autor: Zingore, Shamie Murwira, HK Delve, Robert J. Giller, Ken E.

Promiscuous soyabean varieties have potential to contribute significantly to income generation, food security and soil N budgets on smallholder farms. One of the major factors limiting this potential is farmers preference to allocate nutrient resources to food security cereal crops on the most f...

Enlace original: https://cgspace.cgiar.org/handle/10568/44217

Investigación en Agricultura
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Zingore, Shamie ,  Murwira, HK ,  Delve, Robert J. ,  Giller, Ken E. ,  [Variable grain legume yields, responses to phosphorus and rotational effects on maize across soil fertility gradients on African smallholder farms] ,  Variable grain legume yields, responses to phosphorus and rotational effects on maize across soil fertility gradients on African smallholder farms
Journal Article 2008

Autor: Tittonell, Pablo A. Shepherd, Keith D. Vanlauwe, Bernard Giller, Ken E.

To guide soil fertility investment programmes in sub-Saharan Africa, better understanding is needed of the relative importance of soil and crop management factors in determining smallholder crop yields and yield variability. Spatial variability in crop yields within farms is strongly influenced b...

Enlace original: https://cgspace.cgiar.org/handle/10568/44205

Investigación en Agricultura
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Tittonell, Pablo A. ,  Shepherd, Keith D. ,  Vanlauwe, Bernard ,  Giller, Ken E. ,  [Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya : An application of classification and regression tree analysis] ,  Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya : An application of classification and regression tree analysis
Journal Article 2005

Autor: Tittonell, Pablo A. Vanlauwe, Bernard Leffelaar, P.A. Shepherd, Keith D. Giller, Ken E.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/42841

Investigación en Agricultura
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Tittonell, Pablo A. ,  Vanlauwe, Bernard ,  Leffelaar, 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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