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
Crop response, tree biomass production and changes in soil fertility characteristics were monitored in a long-term (1986–2006) alley-cropping trial in Ibadan, Nigeria. The systems included two alley cropping systems with Leucaena leucocephala and Senna siamea on the one hand and a control (no-tre...
Vanlauwe, Bernard
,
Nziguheba, Generose
,
Nwoke, O.C.
,
Diels, J.
,
Sanginga, Nteranya
,
Merckx, R.
,
[Long-term integrated soil fertility management in South-Western Nigeria: crop performance and impact on the soil fertility status]
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Long-term integrated soil fertility management in South-Western Nigeria: crop performance and impact on the soil fertility status
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
Vanlauwe, Bernard
,
Diels, J.
,
Sanginga, N.
,
Merckx, R.
,
[Residue quality and decomposition: An unsteady relationship?]
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Residue quality and decomposition: An unsteady relationship?
The contribution of the soil scientist to land use planning mainly consists in the identification of land units and the assessment of their soil-related opportunities and limitations for various land utilization types. With a land use scenario study for the Flemish region in Belgium as an example...
Diels, J.
,
Orshoven, J. van
,
Vanclooster, M.
,
Feyen, J.
,
[Using soil map and simulation modeling for the analysis of land use scenarios]
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Using soil map and simulation modeling for the analysis of land use scenarios
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
The IITA in its research for sustainable soil fertility management has passed through several stages during which legume-based systems were always at the forefront. Alley cropping has N yields of more than 200 kg ha-1 with 50% N2 fixation. In the case of Mucuna cover cropping, the ecological bene...
Carsky, R.
,
Sanginga, N.
,
Schulz, S.
,
Douthwaite, Boru
,
Manyong, Victor M.
,
Diels, J.
,
Vanlauwe, Bernard
,
Keatinge, J.D.H.
,
[The ability to fix N is not the only key to delivery of the benefits of BNF to farmers: experience of IITA in the savannas of Africa]
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The ability to fix N is not the only key to delivery of the benefits of BNF to farmers: experience of IITA in the savannas of Africa