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Coefficient of uniformity for rootzone sand samples from golf course putting greens

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The four frames of this chart show coefficient of uniformity (Cu) values from putting green rootzone sands.

The frame at top left shows test results from Turf & Soil Diagnostics, while the frame at top right shows results for sands tested at Brookside Labs. The frame at bottom left shows the results from both labs. I made these charts because I wanted to double check my calculations to make sure I could calculate the Cu from the particle size analysis data.

The frame at bottom right shows density plots for Cu from the 0 to 2 cm (OM2), 2 to 4 cm (OM4), and 4 to 6 cm (OM6) layers from 50 different putting green rootzones in Asia, North America, and Europe.

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