Chinese media report that many onion production areas in Henan, Shandong, and Shanxi recently saw their onions become unmarketable. People in the industry say that one reason for this development is the increase in surface area devoted to onion plantation. Another reason is the high temperature, which caused onions in north China and south China to ripen at the same time. A third reason is the low price of garlic and garlic shoots, which means that traders with refrigerated storage already stocked up on garlic and garlic shoots, and the market is flooded with garlic, garlic shoots, and onions all at the same time and there is not enough refrigerated warehouse space to store them all.
Source: guaguo.cc