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USDA SOIL TEXTURING FIELD FLOW CHART
By Midwest GeoSciences Group


(click to enlarge)

"Help yourself to think on your feet in the field"

DETERMINE SOIL TEXTURE WITH CONFIDENCE

Applied to:
  • Soil Science and Soil Classifying
  • Agronomic Studies
  • Septic System Design and Performance for Perc Tests
  • Supplemental Classification for Engineering Projects

Description and Benefits:

Single-sided, plastic-coated guide for assisting with soil texturing procedures and assigning a Texture Class using the USDA texture triangle. The Flow Chart uses step-wise procedures (adopted from Foth and others, 1992) for estimating sand, silt, and clay content. Use it to:

  • Classify USDA soil texture easily and rapidly in the field.
  • Reproduce consistent soil texturing results (no pun intended).
  • Determine Subclass and Textural Class Modifiers, when appropriate.
  • Learn contrasts with other soil classification systems to avoid confusion.
  • Comes with detailed Instructional Reference Pages

The Flow Chart applies the standard ribboning procedures to estimate the fine-grained fraction followed by placing the fraction within the texture triangle to determine Texture Class (ex: sandy loam). The guide provides instruction for determining Subclass (ex: fine sandy loam) and assigning Textural Class Modifiers for rock fragments greater than 2mm (ex: gravelly silt loam) and organic Compositional Textural Modifiers (ex: peaty sandy clay loam).

USDA Soil Texturing Field Flow Chart
Price: $15.80 (USD) each   (Quantities of 10+ = $10.00 ea)

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Those who purchased this item, may also purchase:

USDA CALIBRATED SOIL TEXTURE KIT

Now soil scientists, geologists, and engineers can practice and calibrate the accuracy of their soil texturing skills!



Recommended References:

University of Florida Fact Sheet SL-29
University of Cornell Fact Sheet 29

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