This is what I am thinking.From a laymans pov, a blend may be prone to the worst of everything, and almost guarantee a mixed and at best average result?
Is there a reason for growing a mixed crop of the same species?
The idea behind was to spread risk, but is kind of ambiguous. There are quite a few prominent zero tillers who have been using/promoting blends for a while now which is where the idea came from.
Having 3/4 separate varieties around the farm rather than 3/4 all mixed togethor may be better risk management, I don’t know .