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by autokad 3308 days ago
I'm with the filtered approach. I dont really trust Krupe's work. yeah, statistically significant on 12 fields .... 2% is right in the range of the stated yield benefit, .5 - 5%, which farmers who actually do business seem to think is economically beneficial.

"In another study, Krupke found that the seed treatments weren't of much benefit to corn yields... the results from all the sites, the average yield from the treated seed was about 2 percent higher, but Krupke says that difference is not statistically or economically significant "