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Aher, S. B.
- Heavy Metal Contamination in Soils Surrounding Mandideep Industrial Area, Madhya Pradesh
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Authors
Affiliations
1 Govt. Motilal Vigyan Mahavidyalaya, Bhopal (M.P.), IN
2 Indian Institute of Soil Science, Bhopal (M.P.), IN
1 Govt. Motilal Vigyan Mahavidyalaya, Bhopal (M.P.), IN
2 Indian Institute of Soil Science, Bhopal (M.P.), IN
Source
An Asian Journal of Soil Science, Vol 12, No 1 (2017), Pagination: 30-36Abstract
Soil contamination in vicinity of industrial establishments due to release and accumulation of heavy metals has been a major concern for last few decades. The main objective of present research was to study the status of heavy metal contamination in the industrial area of Mandideep. The Mandideep being the largest industrial area of Madhya Pradesh in India was selected for present investigation. Mandideep is located between N 23°04' longitude and E 077°31' latitude with an elevation of 1496 m above MSL. The representative soil samples were collected from ten different locations and subjected to laboratory analysis for determination of total and available concentration of seven important heavy metals viz., Pb, Zn, Cr, Cu, Ni, As and Cd. Four acid digestion and DTPA extraction methods were used to digest and extract the total and available form of heavy metal from sample, respectively. The heavy metal concentrations from digest and extractant were estimated by using ICP-OES instrument. In the present study it reveals that the heavy metals concentration is at the nearby maximum level. The results showed that all heavy metal viz., Pb, Zn, Cr, Cu, Ni, As and Cd concentrations in soils surrounding the industrial area of Mandeep found in higher concentrations at all the sampling locations. The concentrations of total lead, copper, chromium, zinc, cadmium, arsenic and nickel varied from 26.6 to 143.9 mg kg-1, 81.0 to 361.0 mg kg-1, 53.0 to 462.0 mg kg-1, 80.1 to 1200.0 mg kg-1, 3.0 to 23.2 mg kg-1, 15.1 to 48.6 mg kg-1 and 84.3 to 260.7 mg kg-1, respectively whereas available lead level ranged between 1.2-4.9 mg kg-1, copper varied from 2.7 to 25.5 mg kg-1, chromium occurred in range from 0.018 to 0.052 mg kg-1, whereas zinc found in range from 7.4 to 71.6 mg kg-1, cadmium level ranged from 0.158 to 0.418 mg kg-1, arsenic varied from 0.008 to 0.021 mg kg-1 and nickel was found in a range from 0.275 to 5.952 mg kg-1. In conclusion, the soil in the vicinity of Mandideep industrial area is severely contaminated with heavy metals released and accumulated from the industrial operations.Keywords
Heavy Metal Contamination, Soil Pollution.References
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- Interactive Effect of Elevated Carbon Dioxide and Elevated Temperature on Growth and Yield of Soybean
Abstract Views :197 |
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Authors
Narendra K. Lenka
1,
Sangeeta Lenka
1,
J. K. Thakur
1,
R. Elanchezhian
1,
S. B. Aher
1,
Vidya Simaiya
1,
D. S. Yashona
1,
A. K. Biswas
1,
P. K. Agrawal
2,
A. K. Patra
1
Affiliations
1 Indian Institute of Soil Science, Nabibagh, Bhopal 462 038, IN
2 Indian Council of Agricultural Research, Pusa, KAB-1, New Delhi 110 012, IN
1 Indian Institute of Soil Science, Nabibagh, Bhopal 462 038, IN
2 Indian Council of Agricultural Research, Pusa, KAB-1, New Delhi 110 012, IN
Source
Current Science, Vol 113, No 12 (2017), Pagination: 2305-2310Abstract
A field experiment was undertaken in the kharif season of 2016 in open-top chambers to study the individual and combined effects of elevated carbon dioxide and temperature on growth and yield parameters in soybean crop. The soybean (var. JS 20–29) crop was grown under two levels of CO2 (ambient, 550 ppmv) in combination with two levels of air temperature (ambient, +2.0°C). The five different climate treatments were: open field (OF), ambient chamber (AC), elevated temperature (eT), elevated CO2 (eC) and elevation of both temperature and CO2 (eCeT). At the time of sowing, vermicompost @ 2.0 tonnes ha–1 was applied along with 30 kg N ha–1 (in the form of urea), 60 kg P2O5 ha–1 (through single super phosphate) and 40 kg K2O ha–1 (through muriate of potash) to the soybean crop. Impact of the climate variables was studied in terms of selected plant attributes, viz. plant height, leaf area, biomass, number of pods, number of grains per pod, grain yield and seed index (100 seed weight). Results indicated significant positive effect of elevated CO2 and temperature on plant growth parameters, pod attributes and grain yield. Compared to AC, leaf area at 50 days after sowing was higher by 143%, 281% and 259% and above-ground biomass at harvest was higher by 47%, 31% and 47% under eC, eT and eCeT treatments respectively. The difference in biomass under OF and AC was not significant. The increase in grain yield over ambient varied from 30% under eT to 51% and 65% under eC and eCeT treatments respectively. The seed index as measured through weight of 100 numbers of seeds, was significantly higher under elevated CO2 and/or elevated temperature treatments than the ambient chamber and open field treatments.Keywords
Carbon Dioxide Fertilization, Climate Change, Elevated Temperature, Seed Index, Soybean Biomass.References
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