XVI International Botanical Congess

Pyrite waste dumps are highly acidic in nature and prone to auto-oxidation. They release the pollutants due to the intense biochemical activities and other environmental conditions. Hence using material with different proportion of phosphatic waste and lime, a range of substratum ph value was achieved from 6.2 to 10.82. Low nutrient levels, summer drought conditions represent major obstacle to grow any plants on the acidic dumps of Amjhore mining area, Bihar, India. Plant growth and nodulation was observed best beyond the ph 7.80.