Elemental Composition of Fresh Strawberry Fruit1

Abstract

Abstract Fruit and calyx of four strawberry clones ( Fragaria × ananassa Duch.) were analyzed for N, P, K, Ca, Mg, Fe, Zn, Mn, B, and Cu content for 2 seasons. The elemental concn varied because of the year, the clone, and the time of season. The concn of the elements in the fruit decreased in the following order: K, N, P, Ca, Mg, Fe, B, Mn, Zn, and Cu. The elemental concn was greater in the calyx than in the fruit; probably as a result of the much higher dry weight content of the calyx. The total elemental content in kg/ha of the fruit and calyx for a season ranged as follows: K from 40 to 67, N from 33 to 49, P from 6 to 9, Ca from 5.4 to 7.5, Mg from 3.7 to 5.7, Fe from 0.11 to 0.15, Mn from 0.05 to 0.10, B from 0.04 to 0.09, Zn from 0.04 to 0.06, and Cu from 0.012 to 0.016.