gypsum volume I need

For soil amendment, apply gypsum owners often opt for the higher rates to achieve both benefits. For peanut production, rates depend on the variety of peanut grown and whether you are producing seed peanuts. Typical gypsum rates for peanuts are as follows:
Virginia peanuts: 1,000 – 2,000 lbs. /A
Large-seeded runners: If pegging zone calcium is <500 lbs. /A, apply 1,000 lbs. /A
Seed penauts (all large seeded varieties): 1,000 lbs. /A or more seed or seed contract requirement