Korai putting green management survey 2024

This dataset contains full results (eighteen responses) of a survey sent to 30 golf course superintendents (head greenkeepers) at courses in Japan that use korai (Zoysia matrella) as the putting green species. The survey was conducted in November 2024. Fertilizer rates are in grams per square meter. Green speed values are in feet. Sand amounts are in millimeters. Seasonal numbers are months (1 = January, 12 = December). Vcut depth is verticut depth in mm. Core size is hollow-tine diamater in mm. Solid_size is solid-tine diameter in mm. irr_time is duration of irrigation in minutes. irr_depth is depth of irrigation in mm.