A large proportion of total P in the soils of the area is unavailable to plants and consequently P is the second most limiting nutrient. The labile and moderately labile phosphorus fractions and adsorption characteristics of surface and subsurface horizons of eleven soil profiles in the derived s...
Nwoke, O.C.
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Vanlauwe, Bernard
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Diels, J.
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Sanginga, N.
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Osonubi, O.
,
Merckx, R.
,
[Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils]
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Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils
The role of residue characteristics in enhancing the availability of P was investigated in a greenhouse study using two soils from the northern Guinea savanna (NGS) and four from the derived savanna (DS) zones of the West African moist savanna. Eight organic residues of varying C-to-P ratio were ...
Nwoke, O.C.
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Vanlauwe, Bernard
,
Diels, J.
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Sanginga, Nteranya
,
Osonubi, O.
,
[Impact of residue characteristics on phosphorus availability in West African moist savanna soils]
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Impact of residue characteristics on phosphorus availability in West African moist savanna soils
A synthesis of results from the savanna zone of West Africa suggests that cowpea rotation can be considered to be an effective resource management technology in cereal-based systems. Part of the N requirement of cereal crops can be satisfied by cowpea crop rotation. Furthermore, benefits of cowpe...
Carsky, J.R.
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Vanlauwe, Bernard
,
Lyasse, O.
,
[Cowpea rotation as a resource management technology for cerealbased systems in the savannas of West Africa]
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Cowpea rotation as a resource management technology for cerealbased systems in the savannas of West Africa
The functioning of trees as a safety-net for capturing nutrients leached beyond the reach of crop roots was evaluated by investigating changes in exchangeable cations (Ca, Mg, and K) and pH in a wide range of medium to long term alley cropping trials in the derived savanna of West Africa, compare...
Vanlauwe, Bernard
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Aihou, K.
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Tossah, B.K.
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Diels, J.
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Sanginga, Nteranya
,
Merckx, R.
,
[Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone]
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Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone
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, Bernard
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Aihou, K.
,
Aman, S
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Iwuafor, E.N.O.
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Tossah, B.K.
,
Diels, J.
,
Sanginga, Nteranya
,
Lyasse, O.
,
Merckx, R.
,
Deckers, J.
,
[Maize yield as affected by organic inputs and urea in the West African moist savanna]
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Maize yield as affected by organic inputs and urea in the West African moist savanna