When is the best time to dig sweet potatoes and go back for winter?

It is best to dig sweet potatoes in September -65438+ 10.

Generally speaking, sweet potatoes can be sown and propagated in March and April, grow normally in a warm and dry environment, and begin to mature in August. If the sweet potato is dug in August, it will affect the fruit, so it is best to dig the sweet potato from September to 10, and the yield will be improved.

Introduction to sweet potato:

Sweet potato, also known as sweet potato, dried sweet potato, sweet potato, sweet potato, sweet potato (north), sweet potato (multi-dialect), sweet potato, sweet potato, Zhu potato, pillow potato, kudzu root, sweet potato, fennel potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, sweet potato.

Sweet potato belongs to the family Convolvulaceae of the genus Panicum, which is more than 2 meters long and lies on the ground. Its leaves are usually wide oval, 4- 13 cm long and 3- 13 cm wide. Corolla pink, white, lavender or purple, bell-shaped or funnel-shaped, 3-4 cm long, and capsule ovoid or oblate.

breeding method

Selecting coarse potato seedlings, cutting each potato seedling into 2-3 sections as seedlings, and cutting the seedlings according to the specifications of 4-6 sections for each section; After cutting seedlings, soak them in Bt and other biological bacteria 1h, and then transplant them.

The planting spacing is 33~43cm, and 2200~3000 plants are planted every 667 square meters. Single row triangular planting along the ridge is adopted, and flat planting with outcrops or buried stems and hidden heads is adopted. After planting, water properly according to the soil moisture content.

Plant in spring and early winter to avoid cold current, and plant in autumn to prevent autumn drought. 5~7 days after planting, check the seedlings and replant them.