There is a significant gap between the rhetoric of claims about adoption of farm-level natural resource management practices and the reality. New empirical evidence of low adoption from several developing countries suggests that on-farm natural resource management practices face significant const...
Stevenson, James
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Vanlauwe, Bernard
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Macours, Karen
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Johnson, Nancy L.
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Krishnan, Lakshmi
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Place, Frank
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Spielman, David J.
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Hughes, Karl
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Vlek, Paul L.G.
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[Farmer adoption of plot- and farm-level natural resource management practices: between rhetoric and reality]
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Farmer adoption of plot- and farm-level natural resource management practices: between rhetoric and reality
Soil organic matter (SOM) has a key role in maintaining soil fertility in weathered soils in the tropics. This study was conducted to determine the contribution of different SOM fractions to the cation exchange capacity (CEC) of a tropical soil as influenced by organic matter inputs of different ...
Oorts, K.
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Vanlauwe, Bernard
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Cofie, Olufunke O.
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Sanginga, N.P.
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Merckx, R.
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[Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multipurpose trees]
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Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multipurpose trees
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
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Lyasse, O.
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[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 availability of P from rock phosphate (RP) is often too low to demonstrate an immediate impact on cereal production. Legumes may improve the immediate availability of P from RP and eventually benefit subsequent maize crops. The ability of Mucuna pruriens (L.) var utilis (Wright) Burck and Lab...
Vanlauwe, Bernard
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Nwoke, O.C.
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Diels, J.
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Sanginga, P.
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Carsky, R.J.
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Deckers, J.
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Merckx, R.
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[Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by Mucuna pruriens, Lablab purpureus, and maize]
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Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by Mucuna pruriens, Lablab purpureus, and maize
Mucuna pruriens and Lablab purpureus can immediately benefit from rock phosphate (RP), but as both herbaceous legumes have only limited economic value, these benefits are only meaningful if yields of a subsequent maize crop are improved. The impact of RP application to Mucuna and Lablab on grain ...
Vanlauwe, Bernard
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Diels, J.
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Sanginga, P.
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Carsky, R.
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Deckers, J.
,
Merckx, R.
,
[Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by maize to previous herbaceous legume cropping and rock phospate treatments]
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Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by maize to previous herbaceous legume cropping and rock phospate treatments
The impact of land use (unfertilized continuous maize cropping, unfertilized and fertilized alley cropping with maize, Gliricidia sepium tree fallow, natural fallow) on the soil organic matter (SOM) status and general soil fertility characteristics were investigated for a series of soils represen...
Vanlauwe, Bernard
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Aihou, K.
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Tossah, S.
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Aman, B.K.
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Diels, J.
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Lyasse, O.
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Hauser, S.
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Sanginga, P.
,
Merckx, R.
,
[Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and landuse history for soils from the West African moist savanna zone]
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Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and landuse history for soils from the West African moist savanna zone
Data from the derived savanna zone in southern Benin indicated that some intensive cropping systems (maize/Cajanus and maize/Mucuna relays; maize/cotton with Senna siamea hedgerows) returned about 12 Mg DM ha-1 year-1 of plant biomass to the soil. This compared favorably with the 8 Mg DM ha-1 yea...
Diels, J.
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Lyasse, O.
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Sanginga, N.
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Vanlauwe, Bernard
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Aihou, K.
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Iwuafor, E.N.O.
,
Merckx, R.
,
Deckers, J.
,
[Options for soil organic carbon maintenance under intensive cropping in the West African savanna]
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Options for soil organic carbon maintenance under intensive cropping in the West African savanna
In cover cropping systems in the tropics with herbaceous legumes, plant residues are expected to supply nitrogen (N) to non-legume crops during decomposition. Field experiments were carried out to (i) determine the effects of residue quality on decomposition and N release patterns of selected pla...
Sanginga, P.
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Vanlauwe, Bernard
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Merckx, R.
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Ibewiro, B.
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[Nitrogen contributions from decomposing cover crop residues to maize in a tropical derived savanna]
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Nitrogen contributions from decomposing cover crop residues to maize in a tropical derived savanna
Populations of plant parasitic nematodes and their effects on symbiotic nitrogen (N) fixation in herbaceous legumes and on some selected characteristics of other plant species associated with such cover crops were studied. Two legume species [mucuna, Mucuna pruriens (L) DC. var. utilis (Wright) B...
Sanginga, P.
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Vanlauwe, Bernard
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Merckx, R.
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Ibewiro, B.
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[Influence of phytoparasitic nematodes on symbiotic N2 fixation in tropical herbaceous legume cover crops]
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Influence of phytoparasitic nematodes on symbiotic N2 fixation in tropical herbaceous legume cover crops
Reliable estimates of symbiotically fixed N2 in herbaceous legumes are important in order to determine their role in maintaining or improving N levels in tropical low-external-input farming systems. We have studied the effects of different management systems on the suitability of two non-N2-fixin...
Ibewiro, B.
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Sanginga, P.
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Vanlauwe, Bernard
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Merckx, R.
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[Evaluation of symbiotic dinitrogen inputs of herbaceous legumes into tropical cover crop systems]
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Evaluation of symbiotic dinitrogen inputs of herbaceous legumes into tropical cover crop systems