Researcher 2010;2(10) Effects Of Waste Water Use On Vegetable Crop Production In Imo State, Nigeria Emenyonu, Christopher Akujuobi Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. cemenyonu@yahoo.com , +2348028347174. Odii; Marshal .A. Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. macaodii@yahoo.com , +2348037094296. Ohajianya Donatus .O. Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. dohajianya@yahoo.com , +2348035438019. Henri-Ukoha Ada Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. haukoha@yahoo.com , +2348036682823. Onyemauwa Sebastian .C. Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. csonyemauwa@yahoo.com , +2348069284242. Ben-Chendo, Glory .N. Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. gnbenchendo@yahoo.co.uk , +2348035841847. Munonye, Oleander. U. Department of Agricultural Economics, Federal University of Technology Owerri, P.M.B. 1526 Owerri Imo State. umunonye@yahoo.com . Abstract: This study is based on a survey of 36 randomly selected farmers in the three agricultural zones of the state with high concentration of vegetable farming using waste water. Information obtained from the farmers was analyzed using basic statistics and t-values evaluated using the ordinary least squares multiple regression technique. A profit measure was also used to evaluate the profit realized from waste water use and non-waste water use, by applying with and without principle. Results showed that waste water use has a negative effect on vegetable crop production as can be seen from the signs of the parameter estimate representing waste water. It was also observed that people within the age bracket of 46 - 55 years engage most in vegetable farming, and they do this because of the less tedious nature of the job. Some of the vegetable farmers use waste water in addition to fresh water, while others do so in order to take advantage of the nutrients it contains. The study further showed that increased waste water use reduces the farmers output and hence revenue. Given the degree of adverse effects of waste water use in the state, it is therefore imperative that prompt action be taken to curb these effect as well as definite actions towards effective waste water management. [Emenyonu, Christopher Akujuobi, Odii; Marshal .A., Ohajianya Donatus .O., Henri-Ukoha Ada, Onyemauwa Sebastian .C., Ben-Chendo, Glory .N., Munonye, Oleander. U. Effects Of Waste Water Use On Vegetable Crop Production In Imo State, Nigeria. Researcher. 2010;2(10):47-56]. (ISSN: 1553-9865). Keywords: Effects, Waste Water Use, Vegetable Production. http://www.sciencepub.net sciencepub@gmail.com 47