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Direct estimation of maize leaf area index as influenced by organic and inorganic fertilizer rates in Guinea Savanna

dc.contributor.authorBerdjour, A.
dc.contributor.authorDugje, I.
dc.contributor.authorRahman, N.A.
dc.contributor.authorOdoom, D.A.
dc.contributor.authorKamara, A.
dc.contributor.authorAjala, S.
dc.date.accessioned2021-05-04T15:34:42Z
dc.date.available2021-05-04T15:34:42Z
dc.date.issued2020-05-15
dc.identifier.citationBerdjour, A., Dugje, I.Y., Rahman, N.A., Odoom, D.A., Kamara, A. & Ajala, S. (2020). Direct estimation of maize leaf area index as influenced by organic and inorganic fertilizer rates in Guinea Savanna. Journal of Agricultural Science, 12(6), 66-76.
dc.identifier.issn1916-9752
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7116
dc.description.abstractLeaf area index (LAI) plays an important role in radiation capture, crop growth and yield formation. However, there is limited quantitative data on the influence of poultry manure (PM) and NPK fertilizer rate (NPK) on LAI, as estimated directly. Using a split-plot design with three replications, a field experiment was conducted to determine the effects of three PM rate (0, 2 and 4 t/ha) as main plot and three NPK rate (0:0:0, 60:30:30 and 120:60:60 kg N P2O5 K2O/ha) as sub plot, on LAI and maize grain yield. The maize was planted at a density of 106,666 plants/ha; two rows on a ridge, one plant per stand at 75 × 25 cm. Linear regression was used to establish predictive equations among correlated variables and to describe the degree of associations. The application of PM in maize increased (p < 0.05) number of leaves/plant (NL) at 8 and 10 weeks after sowing maize (WASM). NL, leaf area constant at 6 and 10 WASM, leaf area (LA) and LAI were significantly affected by NPK. LAI correlated positively with NL, LA and grain yield. The coefficient of determination between actual and estimated LA was in the range of 0.85-0.97. The PM × NPK interaction was significant on maize grain yield. The results suggest that small-scale maize farmers faced with challenges in obtaining and transporting large quantities of poultry manure can use 2 t PM/ha with either 60:30:30 kg N P2O5 K2O/ha or 120:60:60 kg N P2O5 K2O/ha to increase grain yield of maize.
dc.description.sponsorshipSupport to Agricultural Research for Development of Strategic Crops in Africa
dc.description.sponsorshipAfrica Development Bank
dc.description.sponsorshipInternational Institute of Tropical Agriculture
dc.description.sponsorshipSavanna Agricultural Research Institute
dc.format.extent66-75
dc.language.isoen
dc.subjectPoultry
dc.subjectOrganic Fertilizers
dc.subjectNPK Fertilizer
dc.subjectLeaf Area Index
dc.subjectMaize
dc.subjectYields
dc.titleDirect estimation of maize leaf area index as influenced by organic and inorganic fertilizer rates in Guinea Savanna
dc.typeJournal Article
cg.contributor.crpGrain Legumes
cg.contributor.crpMaize
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Maiduguri
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryGhana
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidBERDJOUR:2020a
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAflatoxin
cg.iitasubjectAgronomy
cg.iitasubjectFarming Systems
cg.iitasubjectGrain Legumes
cg.iitasubjectMaize
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalJournal of Agricultural Science
cg.notesOpen Access Article; Published online: 15 May 2020
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.5539/jas.v12n6p66
cg.iitaauthor.identifierAlpha Kamara: 0000-0002-1844-2574
cg.iitaauthor.identifierSam AJALA: 0000-0002-8955-408X
cg.futureupdate.requiredNo
cg.identifier.issue6
cg.identifier.volume12


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