The Standardization of an Apparatus for the Mixing of Soil Samples for Nematode Extractions

Published in: Zoologica Africana
Volume 13, issue 2, 1978, pages: 165–173
DOI: 10.1080/00445096.1978.11447618
Author(s): J P FurstenbergDepartment of Zoology,


Quantitative determination of nematode populations in soils frequently necessitates the mixing of representative soil samples to form a homogeneous, compound sample from which the nematodes are extracted. A mixing apparatus was developed and standardized with the aid of a spectrophotometric technique by which the dispersion of a dye through the soil during mixing could be determined. It was found that the mixer is most suitable for use on sandy loam soils. Optimal mixing is obtained at a speed of 15 rpm for 2 minutes. Under these conditions mechanical damage to nematodes during mixing is minimal.

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