The response of finely textured and organic soils to lime and phosphorus application: Results from an incubation experiment

Abstract A soil's responses to phosphorus (P) input differs based on its chemical composition. Soil acidity and the presence of metallic cations dictate a Currently, soil P application recommendations are universal do not account for differing targeted soil‐specific approach is required optimize efficiency availability. pot incubation experiment was established explore effects contrasting lime rates across range soils (25), characterized by fine particle size high levels organic matter. Three were applied (0, 50, 150 kg ha −1 ) both with without ground (CaCO 3 at 5 tonne over 140‐day period. The addition buffered soil, increasing nutrient availability reducing fixation. 50 treatment rate achieve sufficient plant available in mineral textural classes. Current legislative however allow such rates, which has an impact agronomic performance. Loam experienced greater increase M3 comparison clay soils. Organic posed major threat water quality due poor retention. re‐evaluation variability as current allowances insufficient these particular