Characterization of heavy metals in 5 Km2 range of dumping yard in relation to soil, water and crop has been studied. The concentration of Cd (4.05 mg/kg) in soil was higher than the permissible limit of WHO (3 mg/kg) and in descending order of metals in soil was found to be Fe> Cr>Cd>Ni>Zn>Cu>Pb and in bore well water it was Cr, Fe, Pb, Cd, Zn and Cu (23.20, 0.63, 0.31, 1.19 and 0.69 mg/l respectively) than the permissible limit (0.54, 0.40, 0.068, 0.03, 0.22, 0.018 mg/l) and their respective concentration ordered as Fe>Zn>Cu>Pb>Cd>Ni>Cr. Further the vegetables grown nearby dumping yard was highly contaminated by Cr in range (2.78 to 12.78 mgkg-1) in tomato, beans and cabbage and even in ragi and green gram Cr was high (1.78 to 14.96 mgkg-1). i.e., in Tomato; Cd>Fe>Cr>Zn>Pb>Ni>Cu, Beans; Cr>Cd>Pb>Fe>Zn>Cu>Ni, Cabbage; Cr>Cd>Pb>Fe>Zn>Cu>Ni, Ragi; Fe and Zn were below permissible limit and Pb, Ni, Cu, Cd are BDL and Green gram; Cr>Fe>Zn>Pb>Cu > Ni>Cd. In support of results, primary survey was conducted in nearby 20 villages circumventing the dumping yard. A total of 150 respondents were randomly enquired to know their level of knowledge and health status as result of open dumping site. The results revealed that 43.33%, 36% and 20.67% as medium, high and low impact in relation to heath and knowledge aspect of dumping site. Thus there is a considerable impact on environment and humans due to the presence of heavy metal in crop, soil and water.

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An experiment was conducted to study the “Effect of decomposed crushed seeds, oil cakes and deoiled cakes of neem on maize (Zea mays)” under the greenhouse condition. The three forms of neem cakes were subjected to decomposition for a period of 30, 60 and 90 days in a plastic containers of capacity five kg. The chemical composition of deoiled cake was 4.51 % N, 0.79 % P, 1.40 % K, 57 ppm Zn, 640 ppm Fe, 1.40 ppm Ca and oil content 1.09 % while in oil cake and crushed seeds 4.21 and 3.99 % N, 0.71 and 0.64 % P, 1.30 and 1.10 % K, 49 and 43 ppm Zn, 630 and 633 ppm Fe, 1.40 and 1.30 ppm Ca and oil content 10.27 and 22.53 % respectively. The Plant height, root length, fresh weight, dry weight and chlorophyll (SPAD) has increased by increasing number of days of decomposition and the significant increase  was observed in deoiled cake at 90 days of decomposition as compare to oil cake and crushed seeds at 30, 60 and 90 days of decomposition.

The Arboretum UAS GKVK (Bengaluru) was established in the year 1987 by the Department of Forestry with the main goal to establish a social forest and the best use of wasteland. Introduction of species involves adaptation, productivity and success in new types of environmental conditions but these there tree species are indigenous to India and they are more vigorous in adaptation in general, each plant species has specific requirements for the soil-ecological environment. If plants are to grow to their potential, they must be provided by a satisfactory soil environment. On the other hand, inappropriate conditions may limit or