Two different cover crop radish varieties both had larger tubers in the area where I thinned the plants to 4" apart (shown).
In my cover crop radish plot I have thinned some rows to 4″ between plants and in two rows I have left them thick (I figure I’m at the 12-15#/acre range). After 6 weeks there are some pretty telling signs that 12-15#/acre is too thick and possibly a waste of money. Most of the varieties that have been thinned to 4″ have larger tubers than in the thicker plots. That is not always the case, but I think it’s safe to say that the heavier planted radishes do not have the larger of the tubers.
Cover crop radish tubers planted at the 12-15#/acre rate after 6 weeks.
Here is the same variety at 6 weeks when thinned to the approximately 5#/acre rate.
