Which of the following statements concerning applications or capabilities of soil moisture measuring devices is (are)true for the use of a drying oven and balance? A)requires "destructive sampling" for each measurement B)good to turn on automatic irrigation at -5.0 kPa C)used to turn on irrigation when soil moisture potential reaches -20.0 kPa D)gives same reading for loamy sand and silt loam if both contained 15% moisture E)both A and D

Question

Quizplus · Accepted Answer

The drying oven and balance method for measuring soil moisture content requires removing a sample of soil from the field (destructive sampling), and the moisture content is determined by weight difference before and after drying, which is independent of soil type, so if both a loamy sand and a silt loam contain 15% moisture, the method would give the same reading for both. This method does not involve the measurement of soil moisture potential or the automatic control of irrigation systems.

Which of the Following Statements Concerning Applications or Capabilities of Soil