Boron and Calcium Effects on Runner Peanut Production

Abstract

Calcium (Ca) and boron (B) deficiencies in peanut (Arachis hypogaea L.) reduce seed quality, yield, and crop value. Southeastern U.S. Coastal Plain soils are inherently low in Ca and B, requiring supplementation to reach soil and plant tissue levels sufficient for peanut growth and development. In addition, coarse textured surface horizons with low cation exchange capacity (CEC) and rapid permeability coupled with high rainfall promote nutrient leaching. Therefore, nutrient management in peanut production systems presents challenges. To understand these challenges, two studies investigating Ca and B application rate, source, and timing effects on runner peanut production were conducted.