I was just reading that thread from 2011 regarding pulling the sprouts off to generate more plants from a small amount of potato seed. It started me wondering... Does the potato plant feed at all on the rotting seed potato? Or will a small piece of seed potato or even a removed sprout grow just as one sprout off a big potato? I've always assumed the former, that the plant feeds on the seed as it decomposes.
The harvest/seed ratio doesn't matter much to me, really. The seed was $.80 per pound. More important is the harvest per area.
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