Although the fertility status of soils in the West African moist savanna is generally believed to be low, crop yields on farmers' fields vary widely from virtually nil to values near the potential production. The soil fertility status was evaluated for a number of farmers' fields selected at rand...
Vanlauwe, Bernard
,
Diels, J.
,
Lyasse, O.
,
Aihou, K.
,
Iwuafor, E.
,
Sanginga, N.
,
Merckx, R.
,
Deckers, J.
,
[Fertility status of soils of the derived savanna and northern guinea savanna benchmarks and response to major plant nutrients, as influenced by soil type and land use management]
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Fertility status of soils of the derived savanna and northern guinea savanna benchmarks and response to major plant nutrients, as influenced by soil type and land use management
Although the West-African moist savanna zone has a high potential for crop production, yields on farmers' fields are, on average, far below this potential, mainly due to the low use of external sources of nutrients. Since the mid-1990s, it has become clear that in order to upgrade crop production...
Vanlauwe, Bernard
,
Aihou, K.
,
Houngnandan, P.
,
Diels, J.
,
Sanginga, N.
,
Merckx, R.
,
[Nitrogen management in adequate input maizebased agriculture in the derived savanna benchmark zone of Benin Republic]
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Nitrogen management in adequate input maizebased agriculture in the derived savanna benchmark zone of Benin Republic
One of the options to alleviate soil fertility constraints for sustainable agriculture in the savannas of West Africa is to develop soil nutrient management technologies from an adequate supply and feasible share of organic and mineral inputs. This paper makes a diagnosis of farm-level use of org...
Manyong, Victor M.
,
Makinde, K.
,
Sanginga, N.
,
Vanlauwe, Bernard
,
Diels, J.
,
[Fertilizer use and definition of farmer domains for impactoriented research in the northern Guinea savanna of Nigeria]
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Fertilizer use and definition of farmer domains for impactoriented research in the northern Guinea savanna of Nigeria
Integrated crop-livestock farming in the Guinea savanna of West Africa is often assumed to lead to synergies between crop and livestock production, thereby improving the overall productivity and resilience of agricultural production. Whether these synergies actually occur remains poorly studied. ...
Franke, A.C.
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Berkhout, E.D.
,
Iwuafor, E.N.O.
,
Nziguheba, Generose
,
Dercon, G.
,
Vandeplas, I.
,
Diels, J.
,
[Does crop-livestock integration lead to improved crop production in the savanna of West Africa?]
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Does crop-livestock integration lead to improved crop production in the savanna of West Africa?
In cropping systems with limited amounts of external inputs, the soil organic matter pool (SOM) may contribute significantly to plant nutrition. The impact of organic inputs on total SOM and particulate organic matter (POM) N contents as affected by soil type and the relationships between sources...
Vanlauwe, Bernard
,
Aman, S.
,
Aihou, K.
,
Tossah, B.K.
,
Adebiyi, V.
,
Sanginga, N.
,
Lyasse, O.
,
Diels, J.
,
Merckx, R.
,
[Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity]
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Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity
The moist savanna of West-Africa is characterized by a wide range of climates and soil types. The impact of the biophysical environment on hedgerow N uptake, wood production and maize grain yield was assessed for three years in three alley cropping trials with a selected number of hedgerow specie...
Tossah, B.K.
,
Zamba, D.K.
,
Vanlauwe, Bernard
,
Sanginga, N.
,
Lyasse, O.
,
Diels, J.
,
Merckx, R.
,
[Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a northtosouth transect in Togo]
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Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a northtosouth transect in Togo
In tropical cropping systems with few external imputs, efficient management of mineral N derived from added organic residues is essential for the proper functioning of the system. We studied the dynamics of mineral Nitroden (N) in the top 100 cm of soil with a system tensiometers and suction cups...
Vanlauwe, Bernard
,
Diels, J.
,
Duchateau, L.
,
Sanginga, N.
,
Merckx, R.
,
[Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues]
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Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues
Thenkabail, Prasad S.
,
Stucky, N.
,
Griscom, B.W.
,
Ashton, M.S.
,
Diels, J.
,
Meer, B. van der
,
Enclona, E.
,
[Biomass estimations and carbon stock calculations in the oil palm plantations of African derived savannas using IKONOS data]
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Biomass estimations and carbon stock calculations in the oil palm plantations of African derived savannas using IKONOS data
Sustainable resource management is the critical agricultural research and development challenge in sub-Saharan Africa. The accumulated knowledge on soil management gathered over the last 10 years, combined with solid crop improvement and plant health research at farmers’ level, has brought us to ...
Sanginga, N.
,
Dashiell, Kenton E.
,
Diels, J.
,
Vanlauwe, Bernard
,
Lyasse, O.
,
Carsky, R.J.
,
Tarawali, S.
,
Asafo-Adjei, B.
,
Menkir, A.
,
Schulz, S.
,
Singh, B.B.
,
Chikoye, D.
,
Keatinge, D.
,
Ortiz, R.
,
[Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna]
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Sustainable resource management coupled to resilient germplasm to provide new intensive cerealgrainlegumelivestock systems in the dry savanna