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Smallholder farmers in East-Africa commonly intercrop maize (Zea mays L.) with grain legumes to maximize utilisation of land and labour, and attain larger crop yields. Conventionally, one legume line is intercropped between each pair of maize lines. This study evaluated the potential of a modifie...


Mucheru-Muna, M.Pypers, PieterMugendi, DNKung'u, J.B.Mugwe, JMerckx, R.Vanlauwe, Bernard[A staggered maize-legume intercrop arrangement robustly increases crop yields and economic returns in the highlands of Central Kenya]A staggered maize-legume intercrop arrangement robustly increases crop yields and economic returns in the highlands of Central Kenya

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

Canavalia brasiliensis (canavalia), a drought tolerant legume, was introduced into the smallholder traditional crop-livestock production system of the Nicaraguan hillsides as green manure to improve soil fertility or as forage during the dry season for improving milk production. Since nitrogen (N...


Douxchamps, SabineHumbert, FLHoek, Rein van derMena Urbina, Martin A.Bernasconi, SSchmidt, ARao, Idupulapati M.Frossard, EmmanuelOberson, Astrid[Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua]Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua

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.
Devi, M.J.Sinclair, TRBeebe, Stephen E.Rao, Idupulapati M.[Comparison of common bean (Phaseolus vulgaris L.) genotypes for nitrogen fixation tolerance to soil drying]Comparison of common bean (Phaseolus vulgaris L.) genotypes for nitrogen fixation tolerance to soil drying

Nitrogen fixed in 13 provenances of Acacia albida and 11 isolines of Leucaena leucocephala inoculated with effective Rhizobium strains was measured by 15N techniques and the total N difference method. In the test soil, on the average, L. leucocephala derived about 65% of its total N from atmosphe...


Sanginga, N.Bowen, G.D.Danso, S.K.A.[Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques]Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques

Differences in the nitrogen-fixing abilities of provenances of Casuarina equisetifolia and C. cunninghamiana were assessed in pot experiments. Three methods, the 15N isotope dilution, the A value and total N difference were used to measure N2 fixed. There was a good agreement between the A value ...


Sanginga, N.Bowen, G.D.Danso, S.K.A.[Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods]Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods

Ruminant livestock production in the tropics, particularly when based on pastures, is frequently blamed for being detrimental to the environment, allegedly contributing to: (1) degradation and destruction of ecosystems, including degradation and loss of soil, water and biodiversity; and (2) clima...


Schultze-Kraft, RainerRao, Idupulapati M.Peters, MichaelClements, Robert J.Bai, ChangjunLiu, Guodao[Tropical forage legumes for environmental benefits: An overview]Tropical forage legumes for environmental benefits: An overview

Cowpea (Vigna unguiculata) is a major source of dietary protein and essential component of the cropping systems in semi-arid regions of Sub-Saharan Africa. However, yields are very low due to lack of improved cultivars, poor management practices, and limited inputs use. The objectives of this stu...


Boahen, S.Savala, C.E.N.Chikoye, D.Abaidoo, R.C.[Growth and yield responses of cowpea to inoculation and phosphorus fertilization in different environments]Growth and yield responses of cowpea to inoculation and phosphorus fertilization in different environments

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.

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