Why do potatoes need earthing up?

Online Answer
Earthing up is also beneficial in Potato, Ginger and Turmeric crops. The reason for this is that their stems and twigs collect food items from inside the land. Due to which they continue to get strength. ... They supply essential food substances to the pumpkin plants.
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Earthing up is also beneficial in Potato, Ginger and Turmeric crops. The reason for this is that their stems and twigs collect food items from inside the land. Due to which they continue to get strength. ... They supply essential food substances to the pumpkin plants.