Co-application of organic amendments and inorganic P increase maize growth and soil carbon, phosphorus availability in calcareous soil

Phosphorus (P) constraint can be alleviated by increasing C inputs, which help to improve crop production and P fertilizer use efficiency. However, the effects of different manures on soil microbial biomass (MBP) fractions as well in calcareous soils remain poorly understood. Soil MBP pool involves mineralization immobilization processes, potentially changing availability. Therefore, (MBP, MBC) pool, P, utilization were evaluated greenhouse experiments with maize plantation. Treatments included no manure (control), poultry (PM), cow (CM), goat (GM), mixed (MM), three inorganic (Pi) rates; P0: 0 mg kg-1, P50: 50 P100: P100 kg-1 (P2O5). For plant growth comparison, physiological indices, shoot contents total uptake increased PM compared other treatments. The significantly inducing ∼18% control. results exhibited that Pi (P100) combined (PM) ( p < 0.05) physicochemical properties, is, 683.76 21.5 Olsen 4.26 g SOC, 2.41 POC, 152.84 36.83 respectively. Consequently, we concluded application builds up biomass, is more beneficial for promoting maize.