Sulphur availability depends on the dynamics of its soil forms. An experiment was carried out to evaluate the effects of adding sulphur doses (0, 20, 50, 80, and 120 mg dm-3 of S), as calcium sulphate, and the incubation time (1, 8, 15, 30, 60, and 90 d) on the equilibrium between labile and non-labile sulphur reserves, in 10 soils. An anion exchange resin membrane was used to determine labile sulphur. A shaking period of 48 h (of water, soil […]