When is it suitable to grow sweet potatoes in Shandong?

Hello, Shandong belongs to the northern part of China. Generally speaking, sweet potatoes are harvested in the northern region around 10. (1) According to the 24 solar terms, it should be after the first frost, the temperature drops, the leaves are frosted, the nutrients cannot be made, and the growth stops. After planing sweet potato, it is resistant to storage.

(2) According to the usual habits, we usually plant sweet potatoes between May and June, and the sweet potatoes planted at this time can be dug up around the end of 10. The harvest time of sweet potato should not only depend on the planting time, but also observe the growth of its aboveground parts, that is, the growth of sweet potato vines. In general, it is best to finish harvesting from early October to frost in 165438+ 10.