Why harvest scallions like this? 😮 #shorts

[0:00]Try to look at this farmer harvesting scallions. They use a machine to cut all the stems until they are level with the surface of the soil. However, isn't scallions usually harvested by pulling them out along with the roots? Even when sold, the roots are still there. So, why do the farmers choose to cut them like this? This is done because of the unique root growth pattern of scallions. After being cut, a few days later, the scallions will grow back with new shoots. Not only that, the yield can increase up to two times with better quality.