These podcasts demonstrate a number of techniques required to measure various physical and chemical properties of soil.  Where appropriate, the soil property podcasts will demonstrate the post-fieldwork lab-based processing needed, in addition to detailing the soil sampling method relevant to that test.

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How to measure dry bulk density (avi, mp4, wmv)
How to determine soil texture: Finger assessment (avi, mp4, wmv)
How to use the portable water conductivity and soil activity meter (avi, mp4, wmv)
How to measure gravimetric and volumetric soil moisture (avi, mp4, wmv)
How to use a Schmidt Hammer (avi, mp4, wmv)
How to measure the infiltration capacity of soil (avi, mp4, wmv)
How to measure the organic matter content of soil (avi, mp4, wmv)
How to measure soil shear strength (avi, mp4, wmv)
What is bulk density? (avi, mp4, wmv)