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The next problem with bins is the pressure of the soil on the bottom of the bin. It leads to a damage on the Root system and the primary shoots and the plant starts rotting. .
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One thing I have heard that might help is mixing the soil with sawdust. Because it is lighter, it would decrease the pressure, and unlike straw, potatoes will root in sawdust. I have tried straw and the stems will not develop roots and stolons in straw.