In which of the following situations would you expect downward movement of soil water through the profile to be most rapid?
A) clay texture throughout the profile
B) silt loam in upper layers underlain by a sandy layer
C) uniformly textured sandy loam profile
D) sandy loam in upper layers with a clay band underneath
E) sandy loam in upper layers with a layer of coarse gravel underneath
Question 2
Which of the following statements concerning applications or capabilities of soil moisture measuring devices is (are) true for the neutron probe?
A) requires destructive sampling for each measurement
B) good to turn on automatic irrigation at -50 kPa
C) used to turn on irrigation when soil moisture potential reaches -200 kPa
D) would give the same reading for both a loamy sand and a silt loam if both contained 15 moisture
E) both A and D
Gunnera growing on nitrogen-poor soil.
Movement of sound waves through the human ear.
Water Molecules
Soil Cleans Water
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