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Journal Article 2003-12

Autor: Nwoke, O.C. Vanlauwe, Bernard Diels, J. Sanginga, N. Osonubi, O. Merckx, R.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/96364

Investigación en Agricultura
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Nwoke, O.C. ,  Vanlauwe, Bernard ,  Diels, J. ,  Sanginga, N. ,  Osonubi, O. ,  Merckx, R. ,  [Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils] ,  Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils
Journal Article 2019-02-19

Autor: Adnan, A.A. Diels, J. Jibrin, J.M. Kamara, A. Craufurd, Peter Q. Shaibu, A.S. Mohammed, B. Tonnang, Henri E.Z.

Most crop simulation models require the use of Genotype Specific Parameters (GSPs) which provide the Genotype component of G×E×M interactions. Estimation of GSPs is the most difficult aspect of most modelling exercises because it requires expensive and time-consuming field experiments. GSPs could...

Enlace original: https://cgspace.cgiar.org/handle/10568/101339

Investigación en Agricultura
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Adnan, A.A. ,  Diels, J. ,  Jibrin, J.M. ,  Kamara, A. ,  Craufurd, Peter Q. ,  Shaibu, A.S. ,  Mohammed, B. ,  Tonnang, Henri E.Z. ,  [Options for calibrating ceres-maize genotype specific parameters under data-scarce environments] ,  Options for calibrating ceres-maize genotype specific parameters under data-scarce environments
Journal Article 2004

Autor: Diels, J. Vanlauwe, Bernard Meersch, M.K. van der Sanginga, N. Merckx, R.

Scanty information on long-term soil organic carbon (SOC) dynamics hampers validation of SOC models in the tropics. We observed SOC content changes in a 16-year continuously cropped agroforestry experiment in Ibadan, south-western Nigeria. SOC levels declined in all treatments. The decline was mo...

Enlace original: https://cgspace.cgiar.org/handle/10568/96324

Investigación en Agricultura
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Diels, J. ,  Vanlauwe, Bernard ,  Meersch, M.K. van der ,  Sanginga, N. ,  Merckx, R. ,  [Longterm soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC] ,  Longterm soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC
Journal Article 2007

Autor: Nwoke, O.C. Diels, J. Abaidoo, R.C. Sanginga, N.

The differential ability of genotypes of soybean (Glycine max) and cowpea (Vigna unguiculata) to thrive under low-phosphorus (P) conditions by utilising P from sources with low solubility was assessed in a greenhouse study with a low-P savanna soil collected from a research field in Fashola, sout...

Enlace original: https://cgspace.cgiar.org/handle/10568/92167

Investigación en Agricultura
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Nwoke, O.C. ,  Diels, J. ,  Abaidoo, R.C. ,  Sanginga, N. ,  [Utilization of phosphorus from different sources by genotypes of promiscuous soybean and cowpea in a lowphosphorus savanna soil] ,  Utilization of phosphorus from different sources by genotypes of promiscuous soybean and cowpea in a lowphosphorus savanna soil
Journal Article 2005

Autor: Okogun, J. Sanginga, Nteranya Abaidoo, R.C. Dashiell, Kenton E. Diels, J.

Several legumes with high biological nitrogen fixation (BNF) potentials have been studied in on-station trials. The processes involved in BNF and the benefits of these species to crop production need to be evaluated using farmers' management practices in farmers' fields. An on-farm trial with 20 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91809

Investigación en Agricultura
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Okogun, J. ,  Sanginga, Nteranya ,  Abaidoo, R.C. ,  Dashiell, Kenton E. ,  Diels, J. ,  [Onfarm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria] ,  Onfarm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria
Journal Article 1997

Autor: Asadu, C. Diels, J. Vanlauwe, Bernard
Enlace original: https://cgspace.cgiar.org/handle/10568/103833

Investigación en Agricultura
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Asadu, C. ,  Diels, J. ,  Vanlauwe, Bernard ,  [A comparison of the contributions of clay, silt and organic matter to the effective CEC of soils of subSaharan Africa] ,  A comparison of the contributions of clay, silt and organic matter to the effective CEC of soils of subSaharan Africa
Journal Article 2005

Autor: Vanlauwe, Bernard Aihou, K. Tossah, B. Diels, J. Sanginga, Nteranya Merckx, R.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/91880

Investigación en Agricultura
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Vanlauwe, Bernard ,  Aihou, K. ,  Tossah, B. ,  Diels, J. ,  Sanginga, Nteranya ,  Merckx, R. ,  [Senna siamea trees recycle Ca from a Carich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone] ,  Senna siamea trees recycle Ca from a Carich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone
Journal Article 2005

Autor: Vanlauwe, Bernard Diels, J. Sanginga, Nteranya Merckx, R.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/91881

Investigación en Agricultura
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Vanlauwe, Bernard ,  Diels, J. ,  Sanginga, Nteranya ,  Merckx, R. ,  [Long term integrated soil fertility management in southwestern Nigeria: crop performance and impact on the soil fertility status] ,  Long term integrated soil fertility management in southwestern Nigeria: crop performance and impact on the soil fertility status
Journal Article 1999

Autor: Aihou, K. Sanginga, N. Vanlauwe, Bernard Lyasse, O. Diels, J. Merckx, R.

The potential of alley cropping systems supplied with a limited amount of fertilizer to restore crop productivity on a degraded site and to maintain crop productivity on a recently cleared, non-degraded site on ‘terre de barre' soils in Southern Bénin was investigated from 1994 to 1996. Leucaena ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98020

Investigación en Agricultura
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Aihou, K. ,  Sanginga, N. ,  Vanlauwe, Bernard ,  Lyasse, O. ,  Diels, J. ,  Merckx, R. ,  [Alley cropping in the moist savanna of West Africa I. Restoration and maintenance of soil fertility on terre de barre soils in Benin Republic] ,  Alley cropping in the moist savanna of West Africa I. Restoration and maintenance of soil fertility on terre de barre soils in Benin Republic
Journal Article 2003

Autor: Carsky, R.J. Douthwaite, Boru Manyong, Victor M. Sanginga, N. Schulz, S. Vanlauwe, Bernard Diels, J. Keatinge, J.D.H.

Lessons for appropriate soil management technology generation for the savannas and their application to the grain legume-cereal rotation system There are many legume-based techno logies capable of regenerating soi l ferti lity but few are being adopted by fa rmers in West Africa . At the Tn terna...

Enlace original: https://cgspace.cgiar.org/handle/10568/98078

Investigación en Agricultura
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Carsky, R.J. ,  Douthwaite, Boru ,  Manyong, Victor M. ,  Sanginga, N. ,  Schulz, S. ,  Vanlauwe, Bernard ,  Diels, J. ,  Keatinge, J.D.H. ,  [Amelioration de la gestion des sols par lintroduction de legumineuses dans les systemes cerealiers des savannes africaines] ,  Amelioration de la gestion des sols par lintroduction de legumineuses dans les systemes cerealiers des savannes africaines

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