2.2 Sampling and preparation
Soil sampling was done during the Kharif season (September - October 2013). From each site composite soil samples in triplicates were collected from fields under Sugarcane and Sorghum cultivation.
At least five subsamples of soil were pooled to form a composite sample.
Soil samples were taken from depths of 0-15 cm.
Composite samples of Sugarcane and Sorghum (Shoots) were collected in triplicates from corresponding soil sampling fields from each site for heavy metal analysis.