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This paper describes an incubation experiment with homogeneously 14C labeled maize-straw and its insoluble fraction. The role of the soluble fraction in the decomposition process was assessed, using three independently measured characteristics: (1) fractionation of the maize-straw, resulting in k...


Vanlauwe, BernardDendooven, L.Merckx, R.[Residue fractionation and decomposition: the significance of the active fraction]Residue fractionation and decomposition: the significance of the active fraction

Diagnostic on-farm nutrient omission trials were conducted over two cropping seasons (2015 and 2016) to assess soil nutrients related constraints to maize yield in the northern Nigerian savanna agro-ecological zone and to quantify their variability. Two sets of trials were conducted side by side,...


Shehu, B.M.Merckx, R.Jibrin, J.M.Kamara, A.Rurinda, J.[Quantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna]Quantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna

Nutrient depletion is a major constraint to crop production for moist savanna soils, and inputs of nutrients are required to overcome this constraint. The impact of sole and combined applications of organic inputs (OIs) [fresh tree prunings, Pueraria phaseoloides (Roxb.) Benth. residues, and manu...


Vanlauwe, BernardAihou, K.Aman, SIwuafor, E.N.O.Tossah, B.K.Diels, J.Sanginga, NteranyaLyasse, O.Merckx, R.Deckers, J.[Maize yield as affected by organic inputs and urea in the West African moist savanna]Maize yield as affected by organic inputs and urea in the West African moist savanna

Crop response, tree biomass production and changes in soil fertility characteristics were monitored in a long-term (1986–2002) 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, BernardDiels, J.Sanginga, NteranyaMerckx, R.[Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status]Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status

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