IMPACT OF COAL ASH ON GROWTH, YIELD, BIOMASS AND NODULATION OF LENTIL (LENS CULINARIS)
A green house experiment was conducted to study the effect of various coal ash concentrations (0%, 5%, 10%, 25%, 50%, 70% and 100% v/v) with normal field soil on growth, yield, biomass and nodulation of lentil. Application of 5%, 10% and 25% coal ash with soil caused a significant increase in plant growth, yield and biomass and nodulation of lentil. 25% amendment caused a significantly higher increase compared to 5% and 10% due to availability of optimum amount of micronutrient for various physiological processes. Deleterious effect as observed at higher concentration, the maximum being with 100% coal ash. High level of heavy metals in coal ash is harmful to plants due to their toxic concentrations. At low concentration, heavy metals are better for plant growth, yield and biomass.
SHAHLA FAIZAN AND SAIMA KAUSAR