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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.

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

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, SJAmijee, FKipe-Nolt, Judith A.Giller, Ken E.[Seed analysis as a means of identifying micronutrient deficiencies of Phaseolus vulgaris L. in the tropics]Seed analysis as a means of identifying micronutrient deficiencies of Phaseolus vulgaris L. in the tropics

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 BradyEdje, 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

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

Climbing beans offer potential for sustainable intensification in the East-African highlands, but their introduction requires a major change in the cropping system compared with the commonly grown bush bean. We explored farm-level opportunities, constraints and trade-offs for climbing bean cultiv...


Ronner, E.Descheemaeker, KatrienMarinus, W.Almekinders, Conny J.M.Ebanyat, PeterGiller, Ken E.[How do climbing beans fit in farming systems of the eastern highlands of Uganda? Understanding opportunities and constraints at farm level]How do climbing beans fit in farming systems of the eastern highlands of Uganda? Understanding opportunities and constraints at farm level

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