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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

Nitrogen fixation in nine common bean (Phaseolus vulgaris L.) lines was estimated using the 15N isotope dilution method at two locations in two seasons. In the first season at one location no N2 fixation was detected while in the second season up to 51 kg N ha?1 were estimated. There were signifi...


Kipe-Nolt, Judith A.Vargas, H.Giller, Ken E.[Nitrogen fixation in breeding lines of Phaseolus vulgaris L.]Nitrogen fixation in breeding lines of Phaseolus vulgaris L.

Farrow, AndrewRonner, E.Brand, G. van denBoahen, S.Leonardo, W.Woldemeskel, EndalkachewAdjei-Nsiah, SamuelChikowo, RegisBaijukya, Frederick P.Ebanyat, PeterSangodele, S.Sanginga, J.M.Kantengwa, S.Phiphira, L.Woomer, P.L.Ampadu-Boakye, T.Baars, E.Kanampiu, F.Vanlauwe, BernardGiller, Ken E.[From best fit technologies to best fit scaling: incorporating and evaluating factors affecting the adoption of grain legumes in Sub-Saharan Africa.]From best fit technologies to best fit scaling: incorporating and evaluating factors affecting the adoption of grain legumes in Sub-Saharan Africa.

A survey of selected fields in bean growing regions of Tanzania and a more detailed survey of bean fields in the Lushoto area of northern Tanzania were carried out to establish soil properties limiting the extent of root nodulation of Phaseolus vulgaris L. Soil samples were collected and soil pH,...


Amijee, FGiller, Ken E.[Environmental constraints to nodulation and nitrogen fixation of Phaseolus vulgaris L. in Tanzania. I. A survey of soil fertility, root nodulation and multi-locational responses to Rhizobium inoculation]Environmental constraints to nodulation and nitrogen fixation of Phaseolus vulgaris L. in Tanzania. I. A survey of soil fertility, root nodulation and multi-locational responses to Rhizobium inoculation

N2 fixation in lines of Phaseolus vulgaris was measured by 15N-isotope dilution to determine whether a programme of crossing and recurrent selection had resulted in enhanced nitrogen fixation. In field experiments on an isohyperthermic Aquic Hapludoll soil the amount of N2 fixed by the different ...


Kipe-Nolt, Judith A.Giller, Ken E.[A field evaluation using the (15)N isotope dilution method of lines of Phaseolus vulgaris L. bred for increased nitrogen fixation]A field evaluation using the (15)N isotope dilution method of lines of Phaseolus vulgaris L. bred for increased nitrogen fixation

Climbing beans offer potential for sustainable intensification of agriculture, but their cultivation constitutes a relatively complex technology consisting of multiple components or practices. We studied uptake of improved climbing bean production practices (improved variety, input use and manage...


Ronner, E.Descheemaeker, KatrienAlmekinders, Conny J.M.Ebanyat, PeterGiller, Ken E.[Farmers’ use and adaptation of improved climbing bean production practices in the highlands of Uganda]Farmers’ use and adaptation of improved climbing bean production practices in the highlands of Uganda

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