A total of 72 samples of surface soils (0–10 cm depth) were taken from plots of farm lands in the area of approximately 180 km2 in two separate sampling campaigns carried out in June and September of 2012
A total of 72 samples of surface soils (0–10 cm depth) were taken from plots of farm lands in the area of approximately 180 km2 in two separate sampling campaigns carried out in June and September of 2012