Gypsum rates vary by product. On page 28 of 2021 Peanut Information we provide product rates based on the percentage of calcium sulfate (gypsum) in that product. For example, a 60% gypsum product needs to be applied at 1,800 pounds per acre. A product with 85% gypsum needs to be applied at 1,200 pounds per acre.
Gypsum Rates Peanut Notes No. 82 2021
(Updated: May 26, 2021, 8:15 a.m.)