A detailed explanation of sweet potato seedling raising time and methods
Sweet potato holds a very important place in our daily life. The nutritional value of sweet potato is very high; not only can the tuberous roots be eaten, but its vines and leaves are also very popular. Nowadays, more and more people are growing sweet potatoes, and when we grow sweet potatoes, the seedling raising work is very important. So when should sweet potatoes be raised as seedlings? And how exactly should it be done? Below, the editor will introduce it to you, let's take a look!
1. Seedling raising time
The seedling raising time of sweet potato depends on the planting region and planting season, but it is usually concentrated around March. When raising seedlings in spring, it is generally done around Awakening of Insects. In the south, it should begin in February, while in northern regions it usually needs to be completed before Qingming Festival. When raising seedlings, because the temperature is relatively low, warm beds are usually the main method, and after starting seedling raising, attention should be paid to doing a good job of heat preservation. We should also reasonably control the seedling raising time according to the time of transplanting and market listing. Seedling raising work should begin 4-5 weeks before transplanting the seedlings.
2. Seedling raising methods
Hibernation seedling raising with sweet potato vines
Hibernation seedling raising means that after harvesting sweet potatoes in autumn, the sweet potato vines are cultivated as seedlings for the next year. First, after harvesting, we should select thick and strong sweet potato vines free of pests and diseases, remove the leaves on the vines, and keep the petioles at about 1-2 cm. Then soak the vines in Anfeterling agent for 3 minutes, then take them out and dry them. Then pick out obvious large stones, pebbles, and so on from the ground. Dig a storage pit, place the vines flat in the pit, and then cover with fine sand to force the vines into hibernation. In areas with low temperatures and frost, cover with film appropriately. When the environment is suitable the next year, the vines can be dug out directly for cutting seedling raising.
Seedling raising with sweet potato roots
Also after all sweet potatoes are harvested in autumn, select thick, strong, and healthy sweet potato roots without wounds. Keep about 3 nodes on each root and remove the leaves. Then control the area of the seedling raising site according to the number of seedlings to be raised. If raising seedlings in a greenhouse, pay attention to controlling the plant spacing and digging the seedling raising holes well. After planting the sweet potato roots, stretch the wire well according to the planting row spacing, then connect the sweet potato roots to the wire. After the sweet potato roots sprout, select about 3 new shoots on each sweet potato root. Each new shoot should correspond well to the string, so that later the sweet potato vines can climb and grow along the string.
3. Precautions
Because of differences in temperature, climate, and other environmental factors in each region, the seedling raising time varies. There are also different seedling raising methods, and when raising seedlings we should pay attention to reasonably choosing the seedling raising method according to our own planting techniques and region. The method of raising seedlings with sweet potato roots can make full use of the planting space, and the number of seedlings raised is very large, which can effectively increase yield. Each seedling raising method has different advantages and disadvantages, but no matter which seedling raising method is used, the temperature must be strictly controlled during seedling raising to create a good growing environment for sweet potatoes.
The above is a brief introduction to sweet potato seedling raising time and methods. The quality of sweet potato seedling raising is directly related to the growth and yield of sweet potatoes in the middle and later stages, so everyone must pay a lot of attention! That is all for today's introduction. This article is for reference only, and I hope it can help everyone!