The latest time and method of raising sweet potato seedlings

Sweet potato plays a very important role in our daily life. The nutritional value of sweet potato is very high, not only the root tuber can be eaten, but also its vines and leaves are very popular. Now more and more people grow sweet potatoes, when we grow sweet potatoes. Raising seedlings is very important, so when should sweet potatoes grow seedlings? How exactly should I do it? Let's introduce it to you by the editor. Let's have a look.

1. Seedling raising time

The breeding time of sweet potato depends on the planting area and season, but it is usually concentrated around March. When raising seedlings in spring, it is usually carried out before and after waking. The south will start in February, and then the north will usually be finished before Ching Ming Festival. When raising seedlings, due to the low temperature, it is usually based on the hotbed, and attention should be paid to the heat preservation work after starting to raise seedlings. And we also need to reasonably control the time of raising seedlings according to the time of planting and listing. The work of raising seedlings should be started 4-5 weeks before planting.

2. Seedling raising method

Hibernating seedlings of sweet potato vine

Hibernating seedlings are cultivated by sweet potato vines as seedlings in the second year after sweet potatoes are harvested in autumn. First of all, after harvest, we should choose to grow sturdy, disease-free and pest-free potato vines, remove the leaves on the potato vines, and keep the petiole at about 1-2 cm. Then soak the potato vines in Amphetrin for 3 minutes, then remove them to dry. Then pick out the obvious boulders and pebbles on the ground. Dig a good storage pit, put the potato vines flat in the pit, and then cover the fine sand to force the potato vines to go into hibernation. In low-temperature frost areas, it is necessary to cover the film properly. Under the condition of suitable environment in the second year, potato vines can be dug out directly for cutting seedlings.

Potato root seedling

Similarly, after all the sweet potatoes are harvested in autumn, choose the sturdy, wound-free roots. Each root retains about 3 nodes, and the leaves are removed. Then control the area of the nursery according to the number of seedlings. If raising seedlings in greenhouse, we should pay attention to controlling the distance between plants and digging seedling holes. After planting the sweet potato root, pull the iron wire according to the row spacing of the planted plant, and then connect the sweet potato root with the iron wire. When sweet potato roots germinate, select about 3 new buds on each sweet potato root. Each new bud should correspond to the rope so that the potato vine can climb and grow along the rope in the later stage.

3. Points for attention

Due to temperature, climate and other environmental factors, the raising time of seedlings in each region is different. And all have different seedling methods, when we raise seedlings, we should pay attention to choose reasonable seedling methods according to our own planting techniques and regions. The method of raising potato root seedlings can make full use of the planting space, and the amount of raising seedlings is very large, which can effectively increase the yield. Each seedling method has its own advantages and disadvantages, but no matter which method it is, the temperature should be strictly controlled to create a good growth environment for sweet potato.

The above is a brief introduction of the time and methods of raising sweet potato seedlings. The seedling quality of sweet potato is directly related to the growth and yield of sweet potato in the middle and later stage, so we must pay more attention to it. That's all for today's introduction. This article is for reference only. I hope it can help you all.