Vol. 10, Issue 3 (2021)

Effect of residue incorporation in acid soil with NPK fertilizers raised soil pH, available P & K status. However exchangeable Ca, Mg and available B content of soil was not affected when compared to NPK application alone. Residue incorporation with NPK fertilizers increased crop yield of maize as compared to NPK alone. Uptake of P and K by maize-wheat sequence in acid soil increased with in –situ incorporation of crop residues with NPK fertilizers as compared to application of NPK alone.