Can gypsum be applied on organic farms? Commercial farmers, organic growers, home owners, turf managers and others can benefit from application of gypsum (calcium sulfate) in remediating salinity and sodium issues and improving soil structure. However they can’t all use the same sources or gypsum for all garden soils. Mined...
Phosphorus retention in crops and how calcium can play a role
It’s a dichotomy – the impact of calcium on phosphorus retention and availability. Fields that receive large amounts of manure or litter contain large amounts of phosphorus. Phosphorus that isn't taken up by plants remains in the subsoil and is displaced by runoff. If it isn’t tied up by soil...