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Saturday, October 6, 2012

The Soil Triangle

Print a copy of the triangle for class tomorrow.  Sorry this has gotten up so late!

Soil classification is typically made based on the relative proportions of silt, sand and clay. Follow any two component percentages to find the nominal name for the soil type. For example, 30% sand, 30% clay and 40% silt:

Find 30% along the bottom (sand) line, and follow the slanted line up and to the left. Stop at the horizontal line for 30% clay, and find the soil type: clay loam.


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