The characteristics and the mineral nutrient concentrations in the leaf tissue of creeping bentgrass cultivars in summer

Abstract

This study was conducted to investigate the factors for summer decline of creeping bentgrass grown as putting green under limited or no fungicides condition by analyzing the mineral nutrient concentrations in the leaf tissue of three creeping bentgrass cultivars, CY-2, L-93 and Penncross. The Ca and Mg concentrations of Penncross were evidently high among three cultivars and K concentrations of CY-2 and L-93 tended to be high. The K/Mg ratio and K/Ca ratio tended to be high in order of CY-2, L-93 and Penncross and this tendency was consistent among the years. There were no significant differences of other characteristics of clipping yields, although putting quality tended to be high in order of CY-2, L-93 and Penncross.