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Abstract
The mineral composition of grasses commonly used for turf has received little study. This is especially so for the micronutrient elements. Some data are available for grasses grown under pasture conditions (7), however, most of these grasses and their method of culture are quite different from turfgrasses. The paucity of information on turfgrasses prompted this survey of the mineral composition of several grasses commonly used for ornamental purposes. The grasses studied were grown in the field under a maintenance program typical of that used for turfgrasses. The results should be of value for future comparisons where nutrient toxicities, deficiencies or imbalances are suspected.
Abstract
Color Variations of creeping bentgrass (Agrostis palustris Huds.) are correlated with the iron and Chlorophyll content in leaf tissues. The color value and Chlorophyll content of ‘Cohansey’, a light green cultivar, increases significantly 2 hours after the application of ferrous sulphate. However, ‘IaGreen 4-45’, a dark green cultivar, shows little response. Increases in Chlorophyll or color following iron treatment are temporary. Chlorophyll content of creeping bentgrass cultivars varied during the growing season, and peaked in August.