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Old June 4, 2020   #7
Join Date: Feb 2013
Location: Brantford, ON, Canada
Posts: 1,341

Yield of potatoes.

Method weigh a number of potato plants at harvest and average.

I did some tests over several years. The average is less than 3 pounds per plant. I have got a high a six pounds by carefully watering and having ideal weather.

The method of seed potato weight to harvest is without merit. For example a seed potato could be cut into several pieces to enhance the figures.

A field crop is somewhere between 2 and 3 pounds per plant. I have in some cases with good weather and careful watering got as high a six pounds per plant. Rare but possible.
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