Ag Gyp is mined from deposits and is marketed as a powder. It can range in purity from less that 60% to more than 90% on a dihydrate equivalent basis. Since it was ground, it will pass through screen tests ranging from 50 to 200 mesh, and each batch will...
Gypsum and how it corrects aluminum toxicity in the subsoil
How does calcium remediate pH problems associated with an acid subsoil? Soils can be acid or alkaline. Acid soils occur where there has been a lot of rainfall over the centuries. Acid soils are highly weathered, and many minerals and bases have been leached. Alkaline soils develop in arid areas...
Gypsum & Limestone: two great soil amendments with key differences
Gypsum is calcium sulfate, and lime is calcium carbonate. Both are soil amendments, and both provide calcium. Only gypsum provides a source of sulfur. Gypsum is actively marketed as a soil amendment. Gypsum can be mined. Mined gypsum is a relatively pure and clean product depending on how many other...
Gypsum (calcium sulfate): how it can make degraded soils productive again
Soils in the world degrade generally from human induced activity like logging, mining, drilling (for oil or natural gas), accidental spills or farming. However, nature can also degrade soils with changes in landscape and water levels. Once soils are degraded, they are no longer productive. They cannot support natural vegetation...