Quantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna

Vista sencilla de ítem
dc.creatorShehu, B.M.
dc.creatorMerckx, Roel
dc.creatorJibrin, J.M.
dc.creatorKamara, A.
dc.creatorRurinda, J.
dc.date2018-02
dc.date2018-08-15T14:40:22Z
dc.date2018-08-15T14:40:22Z
dc.date.accessioned2026-06-27T16:05:56Z
dc.descriptionDiagnostic 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, one with an open pollinated maize variety (OPV) and the other one with a hybrid maize variety and each set had six equal treatments laid out in 198 farmers’ fields. The treatments comprised (i) a control, (ii) a PK (‘−N,’ without N), (iii) an NK (‘−P,’ without P), (iv) an NP (‘−K,’ without K), (v) an NPK and (vi) an NPK + S + Ca + Mg + Zn + B (‘+SMM,’ NPK plus secondary macro- and micro-nutrients). Moderate to a large variability in most soil characteristics was observed in the studied fields. Consequently, cluster analysis revealed three distinct yield-nutrient response classes common for the two types of maize varieties. These define classes were fields that have (i) no-response to any nutrient, (ii) a large response to N and P and (iii) a large response to N alone. Although overall yield performance of OPV and hybrid varieties was similar, a distinct fourth class was identified for the hybrid variety, (iv) fields with a large response to N and secondary macro- and micro-nutrients. The results indicate that the large variability in soil nutrients related constraints need to be accounted for to optimize maize yield in the northern Nigerian savanna. The development of field- and area-specific fertilizer recommendations is highly needed, using simple decision support tools that consider variable soil fertility conditions and yield responses as obtained from this study.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/96564
dc.identifier.urihttp://hdl.handle.net/123456789/122473
dc.languageen
dc.publisherMDPI
dc.rightsOpen Access
dc.sourceShehu, B.M., Merckx, R., Jibrin, J.M. & Rurinda, J. (2018). Quantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna. Agronomy, 8(2):18, 1-23.
dc.subjectzea mays
dc.subjectmultivariate analysis
dc.subjectsoil nutrient
dc.subjectyields
dc.titleQuantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna
dc.typeJournal Article

Archivos

Colecciones

Instituto Internacional de Agricultura Tropical (IITA)