Results from this experiment show that gypsum had no effect on yield or sound mature kernels of Florunner peanuts. Florunner peanuts produced higher yields and grades than Florigiant or NC-Fla 14, regardless of treatments. Gypsum application to Florigiant and NC-Fla 14 peanuts increased yields, sound mature kernels, and extra large kernels. In general, gypsum increased the % oil in all cultivars. Florigiaut contained less oil than the other cultivars. Nitrogen content of the seed of all cultivars was reduced by gypsum application. The data indicates that on low Ca soils Florunner peanuts can produce higher yields and quality with or without gypsum, while Florigiant and NC-Fla 14 need gypsum fertilization to increase yield and improve quality.

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