What kinds of containers are effective for storage and transportation of soil moisture samples (and why)?
For an inexpensive approach, we recommend collecting soil moisture samples in heavy-duty aluminum foil packets. Place the sealed aluminum foil packet in a zip-loc-type plastic bag to minimize evaporative moisture loss. Label each packet – both the foil and the plastic bag – with the date, time, and location of the sample. For more instruction on how to build a foil packet visit http://www.hwr.arizona.edu/globe/sci/SM/SMC/AGIfoilpouch.pdf.