O. J. Umezinwa

Ecosystem and Ecological Services; Need for Biodiversity Conservation-A Critical Review

C. E. Oguh, E. N. O. Obiwulu, O. J. Umezinwa, S. E. Ameh, C. V. Ugwu & I. M. Sheshi · Asian Journal of Biology · 2021

Biodiversity and ecosystems are closely related concepts. Biodiversity provides numerous ecosystem services that are crucial and important to human well-being at present and in the future. The review aim to explain the Ecosystem services, and need for conservation of biodiversity...

Open access Research Article 10.9734/ajob/2021/v11i430146

Quantification of Pesticide Residues in Retail Samples of Cowpea - Vigna unguiculata (L.) Walp

C. S. Okoye, C. E. Oguh, O. J. Umezinwa, C. C. Uzoefuna, B. C. Nwanguma & L. U. S. Ezeanyika · Asian Journal of Soil Science and Plant Nutrition · 2021

Quantification of pesticide residues in retail samples of food is one way to determine the level of human exposure to these chemicals and hence their potential health hazards. The study was aimed at quantifying the level of some known pesticides in retail samples of Vigna unguicu...

Open access Research Article 10.9734/ajsspn/2021/v7i130105