I recently received some sweet cherries from Doyle Cleveland of Bloomingdale, Michigan. The cherries were fantastic. They were very sweet, plump and firm.
The brix reading on the black sweet cherries was 21 brix, while the white sweet cherries were 23 brix. This is considerably better than the chart Dr. Reams gave to me which has excellent cherries at 16 brix.
I called Mr. Cleveland to check with him on how he achieved such excellent quality. His soil test on the cherry ground in the fall of 1987 showed no nitrogens and 60 pounds of phosphate, 90 pounds of potassium and 403 pounds calcium, with a-soil pH of 6.85.