Effects of Late-season Nitrogen and Foliar Calcium Applications on Sweet Potatoes1,2

Abstract

Form, rate, and date of late-season soil application of N and foliar applications of CaCl2 to ‘Jewel’ sweet potatoes (Ipomoea batatas (L.) Lam) did not influence root yield, cracking, and mineral, carbohydrate, carotene or ascorbic acid concentrations. Use of CaCl2 foliar sprays and Ca(NOSS3)2 as a top dressing did not increase root Ca levels, firmness, or reduce the incidence of root cracking.