Effect Of Dumpsite Soil On The Vegetative Growth, Heavy Metal Accumulation, Proximate Composition And Vitamin Contents Of Fluted Pumpkin (Telfaira Occidentalis):- Oti, Obinna M.

ABSTRACT

 This study is aimed at investigating the effect of charcoal, sooth and spent oil on the growth of cow-pea (Vignia unguiculataL.), maize (Zea mays), okro (Abelmoschus esculentus). The research was carried out in the screen house of the National Root Crops Research Institute, Umudike. The study was carried out using 4 treatments and two replicates for each plant. The charcoal, soot and spent oil was mixed with the soil and a control soil for the four plants each, two seeds were planted in each of the buckets. The result for all plants on the charcoal treatment showed significant decrease (p<0.05) in both plant height and number of leaves. The result for all plants in the sooth treatment showed that the plants had a reduction in plant height but showed significant increase (p<0.05) in number of leaves over the plants treated with spent oil. The result for some plants in the charcoal treatment showed significant increase (p<0.05) in plant height over the plants in control, while some in the control increased over some plants in the charcoal treatment. This study has shown that charcoal increases plant growth due to the carbon contents it contains, while the spent oil and sooth decreased the growth of the plants. It is important to educate the farmers on the best farming practice and regular monitoring of contamination of the soil by spent oil and sooth alongside charcoal.