Ogbonna, M. J., Department of Plant Health Management, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria.
Ogbonna, P. C., Department of Environmental Management and Toxicology Michael Okpara University of Agriculture Umudike
Oguike, P. C., Department of Soil Science and Meteorology Michael Okpara University of Agriculture, Umudike, Abia State
Oguike, P. C., Michael Okpara University of Agriculture Umudike
OGWO, P. A., 3Department of Environmental Management and Toxicology, Michael Okpara University of Agriculture, Umudike
Ohajianya, D. O., Department of Agricultural Economics, Federal University of Technology Oweri, Imo State
Ojeniyi, S O, Michael Okpara University of Agriculture, Umudike, Nigeria
Okakpu, C. J.
Oke, O. O., Department of Agricultural Extension and Management Federal College of Forestry, P.M.B. 5087, Ibadan, Nigeria
Okonkwo, C., Michael Okpara University of Agriculture, Umudike, Nigeria

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