Several private soil fertility laboratories now offer soybean cyst nematode (SCN) soil analysis as a service. As growers continue to increase their sampling for SCN and begin to compare results from various fields and various laboratories, there are several questions that may be asked to help interpret soil sample results.
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Gregory L. Tylka, Paula Flynn and Julie Todd. "Interpreting SCN soil sample results" Ames, IA(2013)
Available at: http://works.bepress.com/gregory-tylka/160/