Effect of organic acids and fly ash on release pattern of SO42-- sand change in ph and ec of alluvial and black soils of ballia

Incubated soil samples from different treatment combinations were showed that pH of both alluvial and black soil have very small variation but T2,T11 and T14 were appeared in decrease the alkalinity and to continued upto 60 DAT. The EC of treated soil with different combination of organic acid and fly ash in both alluvial and black soil have not much showed more decreasing trend but minimize the soluble salt content. The available sulphur amount have increasing by all treatment combination from 20 to 60 DAT in both alluvial and black soil but treatment T4 ,T12 and T14 have greater release than the control pot.