Effect of Humic Acid Copolymers on Aluminum Activity in Lateritic Red Soil

This paper reports study on the forms and amount of active aluminum occurring in lateritic red soil improved by the copolymers as soil structural amendment, and which were synthetized from humic acid, acrylamide and acrylic acid. The experimental results showed that the copolymers suppressed aluminum activity with change in the forms and decrease in the amount of active aluminum in the soil and the pH of the soil was raised.