1. Most of the northern agricultural provinces are provided by Shandong, Hebei and Inner Mongolia, with large output, convenient transportation and relatively cheap prices. Jiangsu, Zhejiang and Shanghai are far away from agricultural provinces, and the transportation cost is higher.

2. It is a common problem in the development of big cities that vegetables and fruits are more expensive in Jiangsu, Zhejiang and Shanghai. Too much attention is paid to the development of real estate and reinforced concrete, which occupies the land on which agriculture depends, which directly leads to the difficulty of large-scale development of local agriculture in Jiangsu, Zhejiang and Shanghai and its surrounding agriculture, and the price of vegetables and fruits is naturally higher.