When to raise sweet potato slips? Do a good job of insulation

AbstractThe time for raising sweet potato slips depends on the region and climate. Generally, the time for raising slips is around March. In the south, slips can be raised starting in February, while in the north, slips can be raised before Qingming Festival. Because the temperature is relatively low when raising sweet potato slips, they need to be raised in a hotbed, and insulation work must be done well during this period.

1. Time for raising sweet potato slips

1. The time for raising sweet potato slips depends on the planting region and climate. Generally, the time for raising slips is concentrated around March. When raising slips in spring, it is usually around Awakening of Insects. In southern regions, slips can be raised starting in February, while in northern regions, raising slips must be completed before Qingming Festival.

2. Because the temperature is relatively low when raising slips, they need to be raised in a hotbed, and insulation measures must be done well during this period. The time for raising slips can also be reasonably arranged according to planting and marketing schedules. Generally, the work of raising slips starts 4-5 weeks before planting the sweet potato slips.

2. Methods for raising sweet potato slips

1. Raising slips from overwintering sweet potato vines

(1) Start overwintering slip cultivation after harvesting sweet potatoes in autumn. Sweet potato vines can be cultivated as seedlings for the second year. After harvesting sweet potatoes, select thick, strong sweet potato vines free of pests and diseases, remove the leaves from the vines, and keep the petioles at about 1-2 cm.

(2) Soak the sweet potato vines in Amphetamine Ling agent for 3 minutes, then remove them and dry them, then pick out large stones and small stones from the ground.

(3) Then dig storage holes, place the sweet potato vines neatly into the holes, and finally cover them with fine sand. This can force the sweet potato vines into dormancy. In areas where the temperature is relatively low and frost occurs easily, plastic film should be appropriately covered. When the climate turns warm in the second year, dig out the sweet potato vines for cutting propagation and slip raising.

2. Raising slips from sweet potato roots

(1) After all sweet potatoes are harvested in autumn, select thick, strong, and healthy sweet potato roots without wounds for raising slips. During this period, keep about 3 nodes on each root, then remove the leaves, and control the size of the slip-raising room according to the number of slips to be raised.

(2) For greenhouse slip raising, reasonably control the plant spacing and dig the slip-raising pits well. After planting the sweet potato roots, set up wire according to the planting spacing of plants and rows, then connect the sweet potato roots and the wire to each other.

(3) After the sweet potato roots sprout, select about 3 new buds on each sweet potato root. During this period, the new buds should correspond to the strings, so that later the sweet potato vines can climb and grow along the strings.

3. Precautions for raising sweet potato slips

1. Due to differences in region, temperature, climate, and other environments, the time for raising slips also varies, and there are many different methods for raising slips. Therefore, when raising slips, a suitable slip-raising method should be reasonably selected according to individual planting techniques and region.

2. The method of raising slips from sweet potato roots can make full use of planting space, and when the number of slips raised is relatively large, it can effectively increase sweet potato yield. Second, each slip-raising method has many different advantages and disadvantages. No matter which slip-raising method is chosen, the temperature must be reasonably controlled when raising slips, thereby benefiting the growth and development of sweet potatoes.