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, 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]
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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, Sabine
,
Humbert, FL
,
Hoek, Rein van der
,
Mena Urbina, Martin A.
,
Bernasconi, S
,
Schmidt, A
,
Rao, Idupulapati M.
,
Frossard, Emmanuel
,
Oberson, Astrid
,
[Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua]
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Nitrogen balances in farmers fields under alternative uses of a cover crop legume: a case study from Nicaragua
Leaves of nine green manure (GM) species were surface applied to a tropical volcanic-ash soil at a rate of 100 kg N ha 1 in order to evaluate their N-fertilizer value in a glasshouse experiment. GM treatments were compared to urea at two rates, 50 kg N ha 1 (FN50) and 100 kg N ha 1 (FN100), and t...
Cobo Borrero, Juan G.
,
Barrios, E.
,
Kass, DCL
,
Thomas, Richard J.
,
[Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil]
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Nitrogen mineralization and crop uptake from surface-applied leaves of green manure species on a tropical volcanic-ash soil
Howeler, Reinhardt H.
,
Thai Phien
,
[Integrated nutrient management for more sustainable cassava production in Vietnam]
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Integrated nutrient management for more sustainable cassava production in Vietnam
Wortmann, Charles S.
,
Fischler, MA
,
Alifugani, F
,
Kaizzi, CK
,
[Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997]
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Accomplishments of participatory research for systems improvement in Iganga District, Uganda 1993 to 1997
Buruchara, Robin A.
,
Scheidegger, Urs C.
,
[Development of cultural components in integrated management of root rots of beans]
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Development of cultural components in integrated management of root rots of beans
International Center for Tropical Agriculture
,
[Soil conservation and fertility maintenance research in Asia]
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Soil conservation and fertility maintenance research in Asia
This paper reports on a Participatory Learning and Action Research (PLAR) process that was initiated in three villages in eastern Uganda in September 1999 to enable small-scale farmers to reverse nutrient depletion of their soils profitably by increasing their capacity to develop, adapt and use i...
Esilaba, Anthony O.
,
Byalebeka, J.B.
,
Delve, Robert J.
,
Okalebo, JR
,
Ssenyange, D
,
Mbalule, M
,
Ssali, H.
,
[On farm testing of integrated nutrient management strategies in Eastern Uganda]
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On farm testing of integrated nutrient management strategies in Eastern Uganda
Amede, Tilahun
,
Kirkby, Roger A.
,
[Guidelines for integration of legumes into the farming systems of East African highlands]
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Guidelines for integration of legumes into the farming systems of East African highlands
International Center for Tropical Agriculture
,
[Biophysical and socioeconomic processes understood, principles and concepts developed for protecting and improving the health and fertility of soils: Output 1]
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Biophysical and socioeconomic processes understood, principles and concepts developed for protecting and improving the health and fertility of soils: Output 1