Calibration of rapid lime requirement determination methods for acidic soils in South Australia

Context Liming is widely used to alleviate soil acidity but its effectiveness is often limited by the difficulty of accurately estimating the amount of lime required to neutralise the acidity. Aims This study aims to evaluate and calibrate several rapid chemical-based laboratory methods and predictive equations, including 30-min titration, 3–5-day equilibration, Mehlich single buffer, and predictive equations based on soil properties (e.g. clay and organic carbon content) against the moist-soil