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| Banana biomass estimation and yield forecasting from non-destructive measurements for two contrasting cultivars and water regimes, Stevens, B., Diels, J ., Brown, A., Bayo, S., Ndakidemi, P. A.* and Swennen, R., in: Agronomy, volume 10, number 9: 1435, pages 1-26, ISSN 0002-1962, 2020. [DOI] |
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| CERES-Maize model for simulating genotype-by-environment interaction of maize and its stability in the dry and wet savannas of Nigeria, Adnan, A. A.*, Diels, J ., Jibrin, J. M.*, Kamara, A., Shaibu, A. S.*, Craufurd, P. and Menkir, A., in: Field Crops Research, volume 253, number -: 107826, pages 1-11, ISSN 0378-4290, 2020. [DOI] |
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| Long-term integrated soil fertility management in South-Western Nigeria: crop performance and impact on the soil fertility status, Vanlauwe, B.+, Nziguheba, G., Nwoke, C., Diels, J ., Sanginga, N. and Merckx, R ., pages 175-200, chapter 10, Springer, ISBN 978-94-007-2937-7, 2012. [DOI] |
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| Does crop-livestock integration lead to improved crop production in the savanna of West Africa?, Franke, A., Berkhout, E., Iwuafor, E.*, Nziguheba, G., Dercon, G., Vandeplas, I. and Diels, J ., in: Experimental Agriculture, volume 46, number 4, pages 439-455, ISSN 0014-4797, 2010. [DOI] |
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| Organic acids in the rhizosphere and root characteristics of soybean (Glycine max) and cowpea (Vigna unguiculata) in relation to phosphorus uptake in poor savanna soils, Nwoke, C., Diels, J ., Abaidoo, R., Nziguheba, G. and Merckx, R ., in: African Journal of Biotechnology, volume 7, number 20, pages 3617-3624, ISSN 1684-5315, 2008. |
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| Genotypic variation of soybean for phosphorus use efficiency and their contribution of N and P to subsequent maize crops in three ecological zones of West Africa, Abaidoo, R., Sanginga, N., Okogun, J., Kolawole, G., Diels, J . and Tossah, B.*, in: In Demand driven technologies for sustainable maize production in West and Central Africa, pages 194-224, WECAMAN; International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2007. |
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| Evaluation of cowpea genotypes for variations in their contribution of N and P to subsequent maize crop in three agro-ecological zones of West Africa, Abaidoo, R., Okogun, J., Kolawole, G., Diels, J ., Randall, P. and Sanginga, N., pages 401-412, Springer, ISBN 978-1-4020-5759-5, 2007. |
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| Does the enhanced P acquisition by maize following legumes in a rotation result from improved soil P availability?, Pypers, P., Huybrighs, M., Diels, J ., Abaidoo, R., Smolders, E. and Merckx, R ., in: Soil Biology and Biochemistry, volume 39, number 10, pages 2555-2566, 2007. |
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| Utilization of phosphorus from different sources by genotypes of promiscuous soybean and cowpea in a low-phosphorus savanna soil, Nwoke, C., Diels, J ., Abaidoo, R. and Sanginga, N., in: African Journal of Agricultural Research, volume 2, number 4, pages 150-158, 2007. |
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| Plant-available P for maize and cowpea in P-deficient soils from the Nigerian northern Guinea Savanna: comparison of E- and L-values, Pypers, P., Van Loon, L., Diels, J ., Abaidoo, R., Smolders, E. and Merckx, R ., in: Plant and Soil, volume 283, number 1-2, pages 251-264, 2006. |
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| On-farm evaluation of biological nitrogen fixation potential and grain yield of Lablab and two soybean varieties in the northern Guinea savanna of Nigeria, Okogun, J., Sanginga, P., Abaidoo, R., Dashiell, K. and Diels, J ., in: Nutrient Cycling in Agroecosystems, volume 73, number 2-3, pages 267-275, ISSN 1385-1314, 2005. |
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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, Vanlauwe, B., Aihou, K.*, Tossah, B.*, Diels, J ., Sanginga, N. and Merckx, R ., in: Plant and Soil, volume 269, number 1-2, pages 285-296, ISSN 0032-079X, 2005. |
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| Long-term integrated soil fertility management in south-western Nigeria: crop performance and impact on the soil fertility status, Vanlauwe, B., Diels, J ., Sanginga, N. and Merckx, R ., in: Plant and Soil, volume 273, number 1-2, pages 337-354, ISSN 0032-079X, 2005. |
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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, Carsky, R., Sanginga, P., Schulz, S., Douthwaite, B., Manyong, V., Diels, J ., Vanlauwe, B. and Keatinge, J., pages 145-161, Science, 2004. |
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| Biomass estimations and carbon stock calculations in the oil palm plantations of African derived savannas using IKONOS data, Thenkabail, P., Stucky, N., Griscom, B., Ashton, M., Diels, J ., Van Der Meer, B. and Enclona, E., in: International Journal of Remote Sensing, volume 25, pages 1-27, 2004. |
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| Impact of residue characteristics on phosphorus availability in West African moist savanna soils, Nwoke, C., Vanlauwe, B., Diels, J ., Sanginga, P. and Osonubi, O.*, in: Biology and Fertility of Soils, volume 39, pages 422-428, 2004. |
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| The distribution of phosphorus fractions and desorption characteristics of some soils in the moist savanna zone of West Africa, Nwoke, C., Vanlauwe, B., Diels, J ., Sanginga, P. and Osonubi, O.*, in: Nutrient Cycling in Agroecosystems, volume 69, pages 127-141, 2004. |
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| Balanced nutrient management system technologies in the northern Guinea savanna of Nigeria: validation, adaptation, and perspective, Kolawole, G., Diels, J ., Manyong, V., Wallays, K., Dercon, G., Iwuafor, E.*, Falaki, A, Merckx, R . and Deckers, J., in: International Symposium of the African Network for Soil Biology and Fertility (AFNET) of TSBF Institute of CIAT, May 2004 at Yaounde, Cameroon, 2004. |
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| Long-term soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC, Diels, J ., Vanlauwe, B., van der Meersch, M., Sanginga, P. and Merckx, R ., in: Soil Biology and Biochemistry, volume 36, pages 1739-1750, ISSN 0038-0717, 2004. |
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| Amélioration de la gestion des sols par l'introduction de légumineuses dans les systèmes céréaliers des savannes africaines, Carsky, R., Douthwaite, B., Manyong, V., Sanginga, N.+, Schulz, S., Vanlauwe, B., Diels, J . and Keatinge, J., in: Cahiers Agricultures, volume 12, pages 227-233, ISSN 1166-7699, 2003. |
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| Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils, Nwoke, C., Vanlauwe, B., Diels, J ., Sanginga, P., Osonubi, O.* and Merckx, R ., in: Agriculture, Ecosystems and Environment, volume 100, pages 285-294, ISSN 0167-8809, 2003. |
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| Sustainable resource management coupled to resilient germplasm to provide new intensive cereal-grain-legume-livestock systems in the dry savanna, Sanginga, N., Dashiell, K., Diels, J ., Vanlauwe, B., Lyasse, O., Carsky, R., Tarawali, S., Asafo-Adjei, B., Menkir, A., Schulz, S., Singh, B., Chikoye, D., Keatinge, D. and Ortiz, R., in: Agriculture, Ecosystems and Environment, volume 100, number 2-3, pages 305-314, ISSN 0167-8809, 2003. [DOI] |
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| Balanced nutrient management systems for cropping systems in the tropics: from concept to practice, Lyasse, O., Diels, J ., Sanginga, P., Vanlauwe, B. and Merckx, R ., in: Agriculture, Ecosystems and Environment, volume 100, number 2-3, pages 99-314, 2003. |
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| Evaluating options for soil organic carbon maintenance under intensive cropping in the West African savanna using the Rothamsted Carbon (RothC) model, Diels, J ., Aihou, K.*, Iwuafor, E.*, Merckx, R . and Vanlauwe, B., pages 140-149, IFDC; CTA, 2003. |
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| On-farm evaluation of the contribution of sole and mixed applications of organic matter and urea to maize grain production in the savanna, Iwuafor, E.*, Aihou, K.*, Jaryum, J., Vanlauwe, B., Diels, J ., Sanginga, P., Lyasse, O., Deckers, J. and Merckx, R ., pages 185-197, Wallingford, UK: CABI, 2002. |
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| Options for increasing P availability from low reactive rock phosphate, Lyasse, O., Tossah, B.*, Vanlauwe, B., Diels, J . and Merckx, R ., pages 225-237, chapter 17, CABI; International Institute of Tropical Agriculture (IITA), ISBN 0 85199 576 4, 2002. |
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| Gaseous N2O fluxes in tropical agriculture-effect of fertilizer and incorporated organic matter in soils of the derived savanna zone of Nigeria, Roing, K., Goossens, A., Diels, J ., Sanginga, P., Andren, O. and Vanlauwe, B., in: Paper presented, Accra, Ghana, 2002. |
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| Gaseous N2O fluxes from legume maize crop rotations in soil of the derived savanna zone of Nigeria, Roing, K., Goossens, A., Diels, J ., Sanginga, P., Andren, O. and Vanlauwe, B., in: Paper presented, Bangkok, Thailand, 2002. |
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| Fertility status of soils of the derived savanna and northern guinea savanna benchmarks and response to major plant nutrients, as influenced by soil type and land use management, Vanlauwe, B., Diels, J ., Lyasse, O., Aihou, K.*, Iwuafor, E.*, Sanginga, N., Merckx, R . and Deckers, J., in: Nutrient Cycling in Agroecosystems, volume 62, number 2, pages 139-150, ISSN 1385-1314, 2002. |
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| Options for soil organic carbon maintenance under intensive cropping in the West African savanna, Diels, J ., Aihou, K.*, Iwuafor, E.*, Lyasse, O., Sanginga, P., Vanlauwe, B., Deckers, J. and Merckx, R ., pages 299-312, Wallingford, UK: CABI, 2002. |
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| Maize yield as affected by organic inputs and urea in the West African moist savanna, Vanlauwe, B., Aihou, K.*, Aman, S., Iwuafor, E.*, Tossah, B.*, Diels, J ., Sanginga, N., Lyasse, O., Merckx, R . and Deckers, J., in: Agronomy Journal, volume 93, pages 1191-1199, ISSN 0002-1962, 2001. |
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| Fertilizer use and definition of farmer domains for impact-oriented research in the northern Guinea savanna of Nigeria, Manyong, V., Makinde, K., Sanginga, N., Vanlauwe, B. and Diels, J ., in: Nutrient Cycling in Agroecosystems, volume 59, number 2, pages 129-141, ISSN 1385-1314, 2001. [DOI] |
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| On-farm evaluation of the contribution of sole and mixed applications of organic matter and urea to maize grain production in the savanna, Iwuafor, E.*, Aihou, K.*, Jaryum, J., Vanlauwe, B., Diels, J ., Sanginga, P. and Lyasse, O., pages 185-197, Wallingford, UK: CABI, 2001. |
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| Options for increasing P availability from low creative rock phosphate, Lyasse, O., Tossah, B.*, Vanlauwe, B., Diels, J ., Sanginga, P. and Merckx, R ., pages 225-237, Wallingford, Oxon, UK: CABI, 2001. |
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| Nitrogen contribution of promiscuos soybeans in maize-based cropping systems, Sanginga, P., Okogun, J., Vanlauwe, B., Diels, J ., Carsky, R. and Dashiell, K., pages 157-177, Soil Science Society of America (SSSA); American Society of Agronomy, 2001. |
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| Nitrogen management in 'adequate' input maize-based agriculture in the derived savanna benchmark zone of Benin Republic, Vanlauwe, B., Aihou, K.*, Houngnandan, P.*, Diels, J ., Sanginga, N. and Merckx, R ., in: Plant and Soil, volume 228, number 1, pages 61-71, ISSN 0032-079X, 2001. [DOI] |
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| Combined application of organic matter and fertilizer, Vanlauwe, B., Wendt, J . and Diels, J ., pages 247-279, Soil Science Society of America (SSSA); American Society of Agronomy, 2001. |
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| Decision support systems for improving the application of integrated nutrient management technologies, Singh, U., Diels, J ., Singh, B. and Ortiz, R., Vol 58, pages 305-321, Soil Science of America (SSSA), 2001. |
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| Soil organic matter and soil fertility, Merckx, R ., Diels, J ., Vanlauwe, B., Sanginga, P., Denef, K. and Oorts, K., pages 69-89, Madison, USA: Soil Science Society of America (SSSA); american Society of Agronomy, 2001. |
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| Effect of fallow legumes on mineral N soil dynamics in the derived savanna zone, Roing, K., Diels, J ., Vanlauwe, B. and Sanginga, P., pages 118, 2001. |
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| Direct interactions between N fertilizer and organic matter: evidence from trials with 15N-labeled fertilizer, Vanlauwe, B., Diels, J ., Aihou, K.*, Iwuafor, E.*, Lyasse, O., Sanginga, P. and Merckx, R ., pages 173-178, Wallingford, 2001. |
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| Temporal variations in plant delta 13C values and implications for using the 13C technique in long-term soil organic matter studies, Diels, J ., Vanlauwe, B., Sanginga, N., Coolen, E. and Merckx, R ., in: Soil Biology and Biochemistry, volume 33, pages 1245-1251, ISSN 0038-0717, 2001. |
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| Options for soil organic carbon maintenance under intensive cropping in the West African savanna, Diels, J ., Aihou, K.*, Iwuafor, E.*, Merckx, R ., Lyasse, O., Sanginga, P., Vanlauwe, B. and Deckers, J., pages 299-312, Wallingford, Oxon, UK: CABI, 2001. |
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| Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and land-use history for soils from the West African moist savanna zone, Vanlauwe, B., Aihou, K.*, Tossah, S., Aman, B. K., Diels, J ., Lyasse, O., Hauser, S., Sanginga, P. and Merckx, R ., in: Biology and Fertility of Soils, volume 30, pages 440-449, 2000. |
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| Recent developments in soil fertility management of maize-based systems: the role of legumes in N and P nutrition of maize in the moist savanna zone of West Africa, Vanlauwe, B., Aihou, K.*, Iwuafor, E.*, Houngnandan, P.*, Diels, J ., Manyong, V. and Sanginga, P., in: Cover crops for natural resource management in West Africa = Plantes de couverture et gestion des ressources naturelles en Afrique occidentale: proceedings of a workshop organized by IITA and CIEPCA, Cotonou, Benin, 26-29 October 1999. Ibadan, Nigeria, pages 3-13, International Institute of Tropical agriculture (IITA), 2000. |
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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, Vanlauwe, B., Nwoke, C., Diels, J ., Sanginga, P., Carsky, R., Deckers, J. and Merckx, R ., in: Soil Biology and Biochemistry, volume 32, pages 2063-2077, 2000. |
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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, Vanlauwe, B., Diels, J ., Sanginga, P., Carsky, R., Deckers, J. and Merckx, R ., in: Soil Biology and Biochemistry, volume 32, pages 2079-2090, 2000. |
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| Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity, Vanlauwe, B., Aman, S., Aihou, K.*, Tossah, B.*, Adebiyi, V., Sanginga, N., Lyasse, O., Diels, J . and Merckx, R ., in: Agroforestry Systems, volume 42, number 3, pages 245-264, ISSN 0167-4366, 1999. |
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| Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a north-to-south transect in Togo, Tossah, B.*, Samba, D. K., Vanlauwe, B., Sanginga, N., Lyasse, O., Diels, J . and Merckx, R ., in: Agroforestry Systems, volume 42, number 3, pages 229-244, ISSN 0167-4366, 1999. |
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| Alley cropping in the moist savanna of West Africa I. Restoration and maintenance of soil fertility on 'terre de barre' soils in Benin Republic, Aihou, K.*, Sanginga, N., Vanlauwe, B., Lyasse, O., Diels, J . and Merckx, R ., in: Agroforestry Systems, volume 42, number 3, pages 213-227, ISSN 0167-4366, 1999. [DOI] |
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| Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15N-labelled leaf residues, Vanlauwe, B., Diels, J ., Duchateau, L., Sanginga, N. and Merckx, R ., in: European Journal of Soil Science, volume 49, pages 417-425, 1998. |
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| Residue quality and decomposition: An unsteady relationship?, Vanlauwe, B., Diels, J ., Sanginga, N. and Merckx, R ., pages 141-146, CAB International, 1997. |
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| A comparison of the contributions of clay, silt and organic matter to the effective CEC of soils of sub-Saharan Africa, Asadu, C.*, Diels, J . and Vanlauwe, B., in: Soil Science, volume 162, pages 785-794, 1997. |
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| Using soil map and simulation modeling for the analysis of land use scenarios, Diels, J ., Van Orshoven, J., Vanclooster, M. and Feyen, J., SSSA special publication, No. 45, pages 123-143, American Society of Agronomy and Soil Science Society of America, 1996. |
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