References
- Asiegbu J.E. (1983): Effects of methods of harvest and interval between harvests on edible leaf yield in fluted pumpkin. Scientia Horticulturae 21(1): 129-136.
- Eddy N.O., Udoh C.L. (2006): Introduction to Environmental chemistry. Patom Press, Nigeria. In: Ademoroti C.M.A (ed.). Environmental Chemistry and Toxicology. Fludex Press Limited, Ibadan, Nigeria, 1993 edition. World Health Organisation, Geneva.
- Ellah J.D. (2004): Intra household roles in the production, processing and marketing of Soya bean in the northern agricultural zone of Benue State. A Postgraduate Degree Research Project submitted to the Department of Agricultural Extension, University of Nigeria, Nsukka, Enugu State pp. 58.
- Chaudry R., Ashish P., Mukerji K. (1989): Effect of some atmospheric pollutants on micro-organisms. Frontiers in Applied Microbiology. In: Mukerji K., Singh V. and Garg K. (Eds.) Rastogi and co. India, pp. 84 - 89.
- FAO (1985): Water Quality for Agriculture. Irrigation and Drainage, Paper No. 29, Rev. Food and Agriculture Organisation of the United Nations, Rome.
- FAO/WHO (2003): Diet, nutrition and the prevention of chronic diseases. Report of a Joint FAO/WHO Expert Consultation, Geneva, Technical Report Series, No. 916.
- FEPA (1991): Proposed National Water Quality Standards. Federal Environmental Protection Agency, Nigeria. Quality Water Reference 28(1): 119-124.
- Florigin P.J. (1993): Differential distribution of cadmium in lettuce (Lactuca sativa L.) and maize (Zea mays L.). International Environmental Chemistry 46: 23-31.
- FWR (Foundation for Water Research) (1993): Diffuse sources of heavy metals to sewers. Research report of FWR, 29 p.
- Gee G.W., Or D. (2002): Particle-Size Analysis. In: Dane, J.H., Topp, G.C. (Eds)., Methods of Soil Analysis. Part 4. Physical Methods. SSSA, Inc., Madison, WI. pp. 255-294.
- Ghesquire P. (1999): Indirect wastewater reuse for peri-urban irrigation in Kumasi, Ghana. An assessment of surface water quality for irrigation and its implications for human health. Thesis submitted in partial fulfilment of Diploma in Water and Environment. ENGEES, Strasbourg France. /HR Wallingford, UK.
- Gray C.W., Mclaren R.G., Roberts A.H.C, Condrin L.M. (1999): Solubility, sorption and desorption of native and added cadmium in relation to properties of soils in New Zealand. European Journals of Soil Science 50: 127-137.
- Grossman R. B., Reinsch T. G. (2002): Bulk density and linear extensibility: Core method. In: J. H. Dane and G. C. Topp (Eds.) Methods of Soil Analysis. Part 4, Physical Methods, SSSA, Inc., Madison, pp. 208-228.
- Hashim M.A., Mukhopadhyay S., Sahu J.N., Sengupta B. (2011): Remediation technologies for heavy metal contaminated groundwater. Journal of Environmental Management 92: 2355- 2388.
- Hillel D. (2004): Introduction to environmental soil physics. Academic Press, London. 494 p.
- Jackson M.L. (1965): Soil Chemical Analysis. Prentice-Hall Inc, Englewood, Cliffs, New Jersey, pp. 326-338.
- Johnson F.M. (1998): The genetic effects of environmental lead. Mutation Research/Reviews in Mutation Research 410: 123-140.
- Kintomo A.A., Ogunkeye O.O., Ogungbaigbe L.O. (997): Peri-Urban dry season vegetable production in Ibadan, Nigeria. Tropiculture 15 (2): 61-65.
- Klute A. (1986): Water retention: Laboratory methods. In: Klute A. (Ed.) 2nd edition. Methods of Soil Analysis, Part 1. Agronomy Monograph 9. ASA and SSSA, Madison, WI, p. 635-662.
- Leita L., Denobili M., Mulbachosa G. (1995): Bioavailability and effects of heavy metals on soil microbial biomass survival during laboratory inoculation. Biology and Fertility Soils 19: 103-108.
- Li Q., Cai S., Mo C., Chu B., Peng L., Yang F. (2010): Toxic effects of heavy metals and their accumulation in vegetables grown in saline soils. Ecotoxical Environmental Safety 739 (1):84-88.
- Maejima Y., Makino T., Takamo H., Kamiya T. (2007): Remediation of cadmium contaminated paddy soils by washing with chemicals: Effect of soil washing on cadmium uptake by soyabean. Chemosphere 67: 748-754.
- Neal R.E., Lin C., Isom R., Vaishnav K., Zigler Jr. S. (2010): Opacification of leaves cultured in the presence of Pb. Molecular Vision 16: 2137-2145.
- Nelson D.W., Sommers L.E. (1982): Total organic carbon and organic matter. In: Klute A. (Ed.) 2nd edition. Methods of Soil Analysis Part 2: Agronomy Monograph 9 ASA, Madison WI, pp. 539-594.
- NIAES (2004): Agriculture and environment. National Institute for Agro. Environmental Sciences. Technical Report 56. Available online at http:www.niaes.affrc.go.jp/techdoc/soya_cd.pdf. Retrieved on 12/3/2010.
- Rieuwerts J.S., Ashmore M.R., Farago M.E., Thornton I. (2006): The influence of soil characteristics on the extractability of Cd, Pb, and Zn in upland and moorland soils. Science Total Environment 366: 864-875.
- SAS Institute (2002): Statistical Analysis System “SAS/ STAT” User`s Guide, Version 6, Fourth edition; Vol. 1. The SAS Institute Inc., Gary, N.C.
- Shu W.S., Xia H.P., Zeu Q. (2000): Use of vetiver and three other grasses for re-vegetation of a Pb/Zn mine Tailings at Leachang Guangdong Province. In: Truong P. and Xia H.P. (eds): Proceedings of the Second International Conference on Vetiver, China, pp. 58-68.
- Standards Organisation of Nigeria (SON) (2007): Nigeria Standards for drinking water quality ICS 13.060.20. Price group D. Nis. 554: 2007.
- Tiller K., Merry R., McLaughin M. (1994): Cadmium: A modern day problem. Rural Research 162: 32-35.
- Tony R.N. (2003): Water, land and health in Urban and peri-urban food production. Willing Journal of Land Degradation and Development 14(5): 431- 444.
- Van Leeuwen N.H. (2001): Irrigation reforms in Africa. In: Hilmy S., Abernetthy C.L. (Eds.) Proceedings of Regional Seminar on Private Sector Participation and Irrigation Expansion in Sub-Sahara Africa held in Accra, Ghana pp. 50-58.
- Westcot D.W. (1997): Quality control of wastewater for irrigation crop production. FAO Water report. No. 10. FAO, Rome. 86 p.
- World Health Organisation (1973): Use of effluents: Methods of waste water treatment and health safeguard report of a WHO Meeting of Experts. Technical Report No. 517, WHO, Geneva.
- World Health Organisation (1993): Guidelines for drinkingwater quality. Vol. 1. Recommendations. France: WHO 181 p.
- Zata A.I., Vahyala I.E., Dzarma I.S., Ibrahim A. (2008): Assessment of water quality for irrigation on human USTERS, North Eastern Nigeria. Proceedings of the 32nd Annual Conference of the Soil Society of Nigeria, pp. 169-173.