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Old 10-13-10, 08:53 AM   #2
Ryland
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This really only works best if you otherwise have poor soil, otherwise growing them normally tends to work best as potato roots, like all roots can spread in every direction many feet allowing them to get water and nutrients.
My mom tried this only with tires stacked up, the potatoes were spread out but not as many nor as big as the normal hills.
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