Make sure that if the recommendation is in eggs or cysts that the sample results match the recommendations. You can t accurately go from cysts to eggs without an egg count. Different extraction techniques differ in efficiency. You might want to know how the samples were processed. Again, are the recommendations from the lab doing the extraction and therefore matched to their extraction procedure or are the results and recommendations from different labs.
Some recommendations are more conservative than others.
The University of Missouri recommendations are based on research conducted in microplots in central Missouri.