The main objective of earthing up is to aerate the soil, destroy weeds and keep the soil loose for the potatoes to grow. During the entire potato farming cycle, at least two or three earthing up should be done at an interval of 15-20 days. As soon as the plants grow to a height of 15-25 cm, first earthing up is done and the second one is done when the tubers grow as emerge out of the soil. Generally, the second earthing up is done to cover the tubers from being exposed to the outer atmosphere. Earthing up in the potato farm area is done using double mould plough ridger or by a tractor drawn culti ridger.
Why is earthing up required in potato farms and how many times it should be done?