1. Okonwu, K., N.A. Egerton, A.E. Ajayi and J.U. Agogbua, 2022. Nutritional composition of some of the most consumed cereals and legumes in Nigeria. Eur. J. Nutr. Food Safe., 14: 53-58.
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2. Okonwu, K., L.A. Akonye, S.I. Mensah and J.U. Agogbua, 2022. Growth of Telfairia occidentalis leaf grown in NPK 20-10-10 hydroponic solution. Food Nutr. Sci., 13: 479-492.
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3. Okonwu, K., A.U. Ifenuaguta, C.A. Ogazie and J.U.U. Agogbua, 2022. Legume seed sizes and their consequential growth performance. Res. J. Seed Sci., 15: 1-8.
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4. Akonye,L.A., K. Okonwu and J.U. Agogbua, 2022. Performance of Telfairia occidentalis leaf grown in urea hydroponic solution. Am. Int. J. Agric. Stud., 6: 12-19.
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5. Agogbua, J.U., L.A. Akonye, S.I. Mensah and K. Okonwu, 2022. Bioactive compounds and mineral contents of Telfairia occidentalis hooker fil. grown in urea solutions. J. Appl. Sci. Environ. Manage., 26: 595-602.
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6. Agogbua, J.U., K. Okonwu, L.A. Akonye and S.I. Mensah, 2022. Studies on nutrient and mineral contents of fluted pumpkin grown in NPK solution. Eur. J. Agric. Food Sci., 4: 52-57.
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7. Agogbua, J.U., K. Okonwu, L.A. Akonye and S.I. Mensah, 2022. Phytochemicals of Telfairia occidentalis leaf grown in urea solutions. Res. J. Phytochem., 16: 65-73.
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8. Agogbua, J.U., K. Okonwu, L.A. Akonye and S.I. Mensah, 2022. Anti-nutrient composition of fluted pumpkin leaf grown in different NPK solutions. J. Agric. Sci. Pract., 7: 43-51.
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9. Agogbua, J.U., K. Okonwu, D.A. Archibong and F.A. Ikpowosa, 2022. Comparative nutritional study of four most consumed vegetables in Akwa Ibom State, Nigeria. Am. Int. J. Agric. Stud., 6: 1-7.
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10. Okonwu, K., I.G. Ugiomoh and N.V. Ekeji, 2021. Effect of shade on the germination, growth, and development of two varieties of Abelmoschus esculentus (L.) Moench. Sci. Afr., 20: 31-40.
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11. Mensah, S.I., K. Okonwu and P.O. Ejeagba, 2020. Effects of GA₃ and KNO₃ on the germination and DNA content of flax (Linum usitatissimum L.).). World J. Agric. Soil Sci., Vol. 4. 10.33552/WJASS.2020.04.000592.
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12. Kalu, O. and E.M. Agara, 2020. Comparative studies of four varieties of Manihot esculenta crantz. Res. J. Bot., 15: 1-5.
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13. Okonwu, K. and J.E. Muonekwu, 2019. Potentials of underexploited seed of Trichosanthes cucumerina linn. J. Appl. Sci. Environ. Manage., 23: 791-797.
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14. Okonwu K., M.I. Onyejanochie and I.G. Ugiomoh, 2019. Performance of cucurbita moschata on soil and soilless media. International Journal of Plant & Soil Science 26: 1-8.
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15. Okonwu, K., L.A. Akonye and S.I. Mensah, 2018. Nutritional composition of Telfairia occidentalis leaf grown in hydroponic and geoponic media. J. Applied Sci. Environ. Manage., 22: 259-265.
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16. Okonwu, K., L.A. Akonye and S.I. Mensah, 2018. Comparative studies on bioactive components of fluted pumpkin, Telfairia occidentalis Hook F. grown in three selected solid media. J. Exp. Agric. Int., 20: 1-10.
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17. Okonwuand, K. and C.A. Ariaga, 2017. Effects of seed treatment on removal of physical dormancy in Canna indica L. Int. J. Plant Soil Sci., 14: 1-9.
18. Okonwu, K., L.A. Akonye and S.I. Mensah, 2017. Phytochemical profile of Telfairia occidentalis leaf grown in soilless and soil media using HPLC. J. Agric. Stud., 5: 179-198.
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19. Okonwu, K., L.A. Akonye and S.I. Mensah, 2017. Anti-nutrients composition of fluted pumpkin leaf grown in different geoponic media. Pharm. Chem. J., 4: 131-140.
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20. Okonwu, K., C. Ekeke and S.I. Mensah, 2017. Micromorphological and phytochemical studies on Cleome rutidosperma Linn. J. Adv. Biol. Biotechnol., 11: 1-8.
21. Okonwu, K. and I.G. Eboh, 2017. Effects of seed treatment on the germination of Crotalaria verrucosa L. J. Applied Life Sci. Int., 10: 1-8.
22. Okonwu, K. and C.A. Ogazie, 2017. Effect of water sources on the radicle elongation of some cash crops from Nigeria. J. Applied Sci. Environ. Manage., 21: 1097-1100.
23. Okonwu K., C. Ekeke and S. Mensah, 2017. Micromorphological and phytochemical studies on cleome rutidosperma linn. Journal of Advances in Biology & Biotechnology 11: 1-8.
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24. Okonwu K. and I. Eboh, 2017. Effects of seed treatment on the germination of crotalaria verrucosa l. Journal of Applied Life Sciences International 10: 1-8.
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25. Okonwu K. and C. Ariaga, 2017. Effects of seed treatment on removal of physical dormancy in canna indica l. International Journal of Plant & Soil Science 14: 1-9.
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26. Okonwu, K. and C.A. Ariaga, 2016. Nutritional evaluation of various parts of Canna indica L. Annu. Res. Rev. Biol., 11: 1-5.
27. Okonwu, K. and A.P. Enyinnaya, 2016. Comparative phytochemical studies and proximate analysis of five commonly consumed vegetables of southern Nigeria. Asian J. Biol., 1: 1-7.
28. Okonwu K. and C. Ariaga, 2016. Nutritional evaluation of various parts of canna indica l. Annual Research & Review in Biology 11: 1-5.
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29. Okonwu K. and A. Enyinnaya, 2016. Comparative phytochemical studies and proximate analysis of five commonly consumed vegetables of southern nigeria. Asian Journal of Biology 1: 1-7.
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30. Mensah, I.S. and K. Okonwu, 2016. Effect of Pentaclethra macrophylla biochar on some growth indices of Capsicum annuum L. in Port Harcourt, Nigeria. Eur. J. Phys. Agric. Sci., 4: 10-19.
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31. Okonwu, K. and S.I. Mensah, 2015. Effects of gas flaring on some growth indices of maize. Sci. Afr., 14: 12-18.
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32. Okonwu, K. and I.G. Ugiomoh, 2015. Tannin contents of some economic plants in Nigeria. J. Plant Sci., 10: 159-166.
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33. Okonkwu, K., S.I. Mensah and S.M.Sam, 2014. Growth of Calopogonium mucunoides Desv. in crude oil contaminated soil: A possible phytoremediating agent. Asian J. Agric. Res., 8: 66-69.
34. K. Okonwu, S.I. Mensah, S.M. Sam 2014. Growth of Calopogonium mucunoides Desv. in Crude Oil Contaminated
    Soil: A Possible Phytoremediating Agent Asian J. Agric. Res., 8: 66-69.
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35. Mensah, S.I., K. Okonwu and M. Yabrade, 2013. Effect of crude oil application on the growth of mangrove seedlings of Rhizophora racemosa G. Meyer. Asian J. Biol. Sci., 6: 138-141.
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36. Ekeke, C. and K. Okokwu, 2013. Comparative study on fertility status of soils of university of Port Harcourt, Nigeria. Res. J. Bot., 8: 24-30.
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37. Okonwu, K. and S.I. Mensah, 2012. Studies on soil amended with poultry manure and its effects on yield and yield components of pumpkin. Sci. Afr., 11: 84-91.
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38. Okonwu, K. and S.I. Mensah, 2012. Effects of NPK (15:15:15) fertilizer on some growth indices of pumpkin Asian J. Agric. Res., 6: 137-143.
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39. Mensah, S.I. and K. Okonwu, 2012. Effects of NPK fertilizer on nutrient uptake of Cucurbita moschata (Duch. ex Lam.) Duch. ex Poir. Sci. Afr., 11: 114-120.
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40. Okonwu, K. and S.I. Mensah, 2011. Effects of poultry manure on nutrient uptake of Cucurbita moschata (duch. ex lam.) duch. ex poir. Sci. Afr., 10: 16-23.
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41. Osim, S.E., C.S. Odoemena, M.M. Etukudo, K. Okonwu and P. Eremrena, 2010. Evaluation of proximate composition of fruits of lycopersicon esculentum (roma vf) under stress and staking. Global J. Pure Applied Sci., 16: 277-279.
42. Okonwu, K., J.O. Amakiri, M.M. Etukudo, S.E. Osim and A.A.J. Mofunanya, 2010. Performance of maize (Zea mays L.) in crude oil treatment. Global J. Pure Applied Sci., 16: 173-176.
43. Okonwu, K., J.O. Amakiri, M.M. Etukudo, S.E. Osim and A.A.J. Mofunanya, 2010. Performance of maize (Zea mays L.) in crude oil treatment. Global J. Pure Appl. Sci., 16: 173-176.
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44. Okonwu, K., J.O. Amakiri, M.M. Etukudo, S.E. Osim and A.A.J. Mofunanya, 2010. Growth and development response of Maize (Zea mays) in crude oil pollution treatment. Global J. Environ. Sci., 9: 1-5.
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45. Okonwu, K. and J.O. Amakiri, 2009. Effect of crude oil on the germination, growth and development of IT84S-2246 variety of cowpea, Vigna unguiculata(L.) Walp. Niger. J. Plant Protect., 23: 112-121.