Determination of DTPA extractable heavy metals from sewage irrigated fields and plants

Jyoti Singh


The field experiments were conducted to evaluate the accumulation of heavy metals in soil and plant parts. The protocol based on DTPA assisted extraction of heavy metal was used to find out the amount of different heavy metals. The relative level of accumulation of heavy metal was determined in response to sewage irrigation and ground water irrigation of soil and different crops. The amount of heavy metals like Cd, Cr, Cu and Ni was observed to higher level in case of sewage effluent irrigated soil than ground water. The Nickel, Cadmium, Chromium and Copper metal also varied on the depth, having higher amount of metals on upper surface than the lower layers of soil.

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