A heat lamp and reflector socket with a spring clamp may be purchased on-line for as little as $26. The amount of time required to dry samples depends on many things including the wetness of the initial sample, the soil characteristics, the relative humidity, and the temperature to which the sample is heated. GLOBE protocols specify that samples are not to be heated above 105o C. In using a heat lamp, the temperature to which the sample is heated depends on the wattage of the bulb and the distance between the heat lamp and the sample bag.
I have tried drying a sample using this...
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