Nitrogen mineralization of roots of maize and selected woody species

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dc.creatorRisasi, E.L.
dc.creatorTian, G.
dc.creatorKang, B.T.
dc.creatorOpuwaribo, E.E.
dc.date1999
dc.date2026-04-27T12:40:18Z
dc.date.accessioned2026-06-27T15:52:08Z
dc.descriptionA laboratory experiment was carried out to assess nitrogen (N) mineralization of roots of four woody agroforestry species (Dactyladenia barteri, Senna siamea, Gliricidiasepium, and Leucaena leucocephala) and maize (Zea mays). Addition of Gliricidia and Leucaena roots with high N contents and low carbon (C)‐to‐N ratio (≤14.0) resulted in net N mineralization, while the addition of maize roots with low N and high C‐to‐N ratio (40.3) immobilized N. Addition of Dactyladenia and Senna roots with intermediate N content and C‐to‐N ratio immobilized N to a lesser extent. Nitrogen mineralization was negatively and significantly correlated with C‐to‐N ratio of the added roots. Addition of roots of the five species also differentially affected soil pH during the first 12 weeks of incubation. Soil pH was positively and significantly correlated with the roots initial C‐to‐N ratio and negatively correlated with their initial N content. At 24 weeks of incubation, the pH of all treatments reverted to initial value.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/182667
dc.identifier.urihttp://hdl.handle.net/123456789/115876
dc.languageen
dc.rightsLimited Access
dc.sourceRisasi, E.L., Tian, G., Kang, B.T., & Opuwaribo, E.E. (1999). Nitrogen mineralization of roots of maize and selected woody species. Communications in soil science and plant analysis, 30(9-10), 1431-1437.
dc.subjectmaize
dc.subjectmineralization
dc.subjectzea mays
dc.subjectnitrogen
dc.subjectroots
dc.titleNitrogen mineralization of roots of maize and selected woody species
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)