Is it true that Xinjie Huai Yam?

The yam in Xinjie is real. Xinjiejiashan medicinal materials are all planted by themselves, and no pesticides, fertilizers, herbicides and swelling agents are used in the planting process. According to relevant information, Xinjie Dioscorea opposita is planted by itself, so it takes a lot of manpower, and the delivery time is much slower than other yam, but it is true.