Articles by A.I. Yakubu (1)

The Effect of Nitrogen and Phosphorus on Growth and Yield of Roselle (Hibiscus sabdariffa var. sabdariffa L.) In a Semi Arid Agro-Ecology of Nigeria*

L.A. Okosun, M.D. Magaji and A.I. Yakubu

Journal of Plant Sciences 5 ( 2 ): 194 - 200 , 2010

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