If you are a beginner or not very confident in determining permeability and erosion, please return back to narrative or teaching card.
For those of you still here...
The main combination you need to be aware of with coarse textured soils
is:
(shallow and very shallow coarse textured soils will not be used in contests) For moderately coarse, medium, moderately fine and fine textured soils, 20" deep or deeper, these combinations need to be considered:
For moderately coarse, medium, moderately fine and fine textured soils, shallow, 10 to 20" deep, these combinations would be considered: *Nearly level and moderate erosion can occur; but will not be used in a contest. |