Gypsum (CaSO4.2H20) is very soluble compared to lime and is used as a quick source of calcium (Ca) but does not adjust the pH of the soil. The sulphur (S) in the gypsum supports and enhances the photosynthesis process. It has been used in agriculture for generations as an effective soil conditioner, particularly in heavy clay soils where drainage and structure can be a challenge. It helps break up compacted clay, allowing water to penetrate more easily and roots to grow deeper and stronger. This improved structure also reduces surface crusting, minimises runoff, and enhances the soil’s ability to hold moisture and nutrients where plants need them most.