Store potatoes and my seed potatoes are nicely rounded but my homegrown potatoes get knobby and deformed making them hard to peel. Am I watering too much?
What Causes My Potatoes to Get Knobby or Deformed?
grapesmith added on May 28, 2013 | Answered
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Answered on May 28, 2013
This is typically caused by uneven watering and is more likely to happen during times of drought.
This link has a lot of information that may be helpful to you:
https://www.extension.iastate.edu/publications/pm1890.pdf (pg 2)
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