Long term impact of manuring, fertilization and liming on soil resilience, enzyme activities and productivity under maize-wheat system in an acidic Alfisol

Aim: This study was carried out to evaluate the long-term impact of manuring, fertilization and liming on soil resilience, enzyme activities and system productivity under changing climate scenarios. Methodology: The soil samples were collected from 67 year old long-term experiment going on, at Birsa Agricultural University, Jharkhand during 202223 under maize-wheat cropping system from seven treatments, viz. T 1 : control, T2 2 : 100 % N, T 3 : 100 % FYM, T : 1 / 2 (N+FYM) + P + K , T : 100 % NPK, 4 X/2 Y/2 5 T 6 : Lime + NPK, T : Lime + FYM +P + K . To assess soil resistance and resilience, surface samples were subjected to with and without heat stress 7 (A-X) (B-Y) (48 +/- 2 degrees C for 80 hrs) and substrate addition (0.02 g glucose g soil).-1 Results: Application of FYM/lime with NPK significantly improved bulk density, pH, SOC and system productivity. The highest enzyme activities and cumulative respiration were observed in lime + FYM + P (A-X) + K (B-Y) treatment. It exhibited the highest resistance index (0.92) and resilience index (0.34). Interpretation: The integrated use of inorganic, organic along with liming proved to be a useful management strategy for maintaining soil quality, resistance and resilience, and crop productivity in acid soil of Jharkhand.