Materials and Methods Two greenhouse studies were conducted in Spring and Summer
1998 to evaluate the utility of a hand-held chlorophyll meter (model SPAD-502; Minolta
Corp., Ramsey, NJ) to assess the chlorophyll status and to correlate it with N status and
visual quality in St. Augustinegrass.'Floratam'St. Augustinegrass sod was washed
thoroughly to remove soil and cut into 12-cm-diameter plugs; these were placed on sand in
16-cm-diameter plastic pots and topdressed with sand. Pots were placed in a glasshouse …

Using a chlorophyll meter to determine the chlorophyll concentration, nitrogen concentration,
and visual quality of St. Augustine grass | CiNii Research … Using a chlorophyll meter to
determine the chlorophyll concentration, nitrogen concentration, and visual quality of St.
Augustine grass …