Potato Extension


Andy Robinson

Potato Extension Agronomist


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Effect of potato tubers left in the field on the 2020 crop

With the large amount of potato tubers left in the ground, there have been many asking how this will influence the 2020 crop. Because potatoes are about 80% water, they will freeze in the ground and typically stay frozen until spring, storing nutrients and water until the next growing season. Potato plants take in a large amount of nutrients, when compared to other row crops. To estimate the amount of nutrients that could be left in the soil for 2020, take into account the expected yield (Table 1).
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