Journal of Research in National Development

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Macro Nutrients in Selected Agrofarestry Laguminous Trees in Girei Local Government Area, Adamawa State

AM Bichi


Seven selected leguminous tree species Acacia senegalensis, Acacia nilotica, Albizia lebbeck, Dalbergia sisso, Delonix regia, Tamarindus indica, and Parkia biglobosa were used to determine the status of macro nutrients they contained. The digested samples or titres of the plants were subjected to laboratory analysis to determine the total Nitrogen [N], Phosphorus [P], Potassium [K], Calcium [Ca], Magnesium [Mg], and Sulphur [S]. The data obtained was then analysed using the Analysis of Variance [ANOVA] with three replications and thirty five treatments and a fixed effect model at p = 0.05. The means that were found to be significantly different were further separated using the fisher’s Least Significant Difference [LSD] at p = 0.05. However Acacia senegalensis, Acacia nilotica and Albizia lebbeck were found to have sequestered a tremendous amount of nutrients which warranted their recommendation as good trees for an Agroforestry practice.

Keywords: Macro nutrients, leguminous tree species, agroforestry farms

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