Golden Nematode Program Manual - Phytosanitary Resources

Procedures: Laboratory, Rack Room, and Wash Room
Rack Room
Step 3: Allow the Samples to Dry
Sample bags will remain on the racks in the drying rack room for
approximately two months to dry, depending on the moisture content
of the soil at the time of collection. Adjust the dehumidifier and
thermostat as rack room humidity and temperature levels dictate.
When heat is used, the temperature should be maintained at
60°-65°F. The soil and potential cysts must be dry to process.
FIGURE 2-4-2 Soil Samples Drying in the Rack Room
Muck Soil
Samples
Mineral Soil
Sample
Moisture
Content
Muck soil is generally friable and dries quicker than mineral soil.
Mineral soil dries much more slowly and is more susceptible to
hardening.
Determine whether the soil in each sample bag is dry enough for
sample washing, as follows:
1. If the sample bag feels heavy, this could indicate the soil is still
too moist.
2. Check the outside of the bag for wrinkled, damp, or wet spots. If
any are found, this indicates the soil is too moist. Return the bag
to the exact location on there shelf where removed.
11/2007-01 Golden Nematode Program Manual 2-4-5
PPQ