What should I pay attention to when planting sweet potatoes in winter?

The optimal temperature for growing sweet potatoes is 20-30 degrees Celsius.

Therefore, planting should also be done in the spring when the temperature rises above 20 degrees, so that there is enough time to grow, so that the sweet potatoes can get the highest yield and the best quality.

Sweet potatoes are very shelf-stable and have a very low storage cost in northern regions.

Sweet potato cellaring, to April of the second year is still fresh as ever, therefore, the whole winter and spring can be the first market, and the storage capacity is very large, a single storage cellar small can be stored thousands of catties, large can be stored hundreds of thousands of catties, Shandong in recent years and the introduction of sweet potato storage cellar construction subsidy policy, sweet potato storage capacity has been rapidly improved.

Since it is a winter planting of sweet potatoes, the local temperature should be low, not suitable for the growth of sweet potatoes, it is necessary to carry out greenhouse planting, so that the planting cost is too high, and the cellar sweet potatoes have no cost and advantage, therefore, if it is for the purpose of producing sweet potatoes, it is not cost-effective, but if it is to produce sweet potato seedlings ** market is very feasible: high nutritional value, less investment, no fertilization and no pesticides, safe and high-quality. Now briefly talk about the problems that should be paid attention to when planting sweet potato seedlings in winter:

1. Build a shed. Compared with other vegetable production, the growth of sweet potato seedlings is not too high temperature requirements, according to the local winter temperature conditions, choose a place with fertile soil and deep soil layer to build a simple greenhouse, or can simply repair and reuse the abandoned vegetable greenhouse.

2. Seed selection. For the production of sweet potato seedlings, it is necessary to choose a round-leaved variety with strong stems and leaves and thick leaves: Yanshu 25

No., Xu Shu No. 18, etc., you can also choose purple potato varieties such as Chuanshan purple and Xu Zishu No. 8.

3. Planting. Sweet potato tubers can be planted directly, or seedlings can be raised and cuttings in advance. When choosing to plant potato pieces directly, you should choose slender small potatoes, plant them flat, plant seedlings on the ground and plant them densely, and apply high-quality organic fertilizer that is fully rotted before planting.

4. Management. Sweet potato seedling management is simple: regulate the appropriate temperature, water, and apply fully decomposed organic fertilizer or high-quality commercial organic fertilizer after harvest, or enrich biogas liquid fertilizer.

5. Harvest. When the potato seedlings grow to more than 15 cm, they are harvested, leaving 4-5 leaves in the lower part, and picking the tender shoots in the upper part for sale.

Due to the lack of pests and diseases of potato seedlings, no chemical fertilizers and no pesticides, and high health care value, it is very suitable for people who have eaten enough chicken, duck and fish meat to change their taste, and it is also a cheap and good product for beauty.

Fertilization and temperature. Because of planting sweet potatoes in winter, we must pay attention to fertilization; At the same time, it is necessary to ensure that the temperature is normal.

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The best sowing season for sweet potatoes is in March and April in spring, because this time of spring is generally warm, humid and rainy, and the temperature is generally above 20, and the young shoots and new branches of sweet potatoes grow vigorously. Sweet potatoes need to be raised 2 months before transplanting and planting, that is, spring potatoes start to raise seedlings in late January, autumn potatoes in mid to late June, and early winter potatoes in early to mid August.

Generally, the best time for sweet potato planting is in April and May, but the best time to plant sweet potatoes is around mid-May, of course, the temperature is not the same in various places, so the planting time will be different, in fact, the planting of sweet potatoes needs to control the temperature, the temperature is the best above 15 degrees Celsius, this time period to plant sweet potatoes, the survival rate is very high.

Sweet potatoes are divided into spring potatoes and summer potatoes, spring potatoes should be planted in March, April and May in the spring to have the greatest benefits, summer potatoes refer to sweet potatoes before and after the wheat harvest. Spring potatoes are best planted in April and May when the temperature is not very low.

In spring, sweet potato planting generally begins in the middle of the second lunar month.

Because the sweet potatoes planted in the spring have a long growth time, good taste, high yield, and early harvest, they can be sold at a good price.

The Guyu solar term is in the third month of the lunar calendar every year, and it is suitable to plant sweet potatoes at this time; And if you don't transplant until the fourth month of the lunar calendar, the yield is very low, and often only vines grow, and sweet potatoes don't bear fruit. Because sweet potatoes are temperature-loving crops, they are heat-tolerant but not cold-tolerant. Before planting, it is necessary to raise seedlings before transplanting.

Sweet potatoes are not hardy, and the suitable growing temperature is 22 to 30 degrees Celsius, and if the temperature is too low, it will stop growing. High temperature at the budding stage affects the emergence rate, and the right temperature and moisture can help the seedlings grow well. Sweet potatoes are suitable for growing in fertile sandy soil, because sweet potatoes grow expanded roots and grow in the soil, and sandy soil is conducive to the expansion of sweet potato roots.

Sweet potatoes can be cut without fertilizer, and after the sweet potato seedlings return to green, they will be fertilized. Generally, farmers will plow, weed, and send the soil to the roots, so that the soil is soft and breathable, and then apply human urine and fecal water, so that fertilizer and water are supplemented.

Planting sweet potatoes on rainy days, it is easy to cause potato ridge compaction, especially the planting hole is pressed while wet, after sunny days, the surrounding soil becomes dry and compacted, which is not conducive to potato seedlings rooting and slow seedlings, and the rainy weather is mild and the ground temperature is relatively low, and it is not conducive to potato seedlings rooting and slow seedlings, sweet potato cultivation is basically through the early stage of seedling, and then cuttings are planted, the sweet potato seedlings of cuttings have no roots in the early stage, so that for the sweet potato seedlings after cuttings, the soil needs to be very moist.

<>Although sweet potato seedlings have no requirements for the growth environment, they should have a high survival rate and a high yield of sweet potatoes. It is necessary to choose loose, breathable, well-drained sandy loam soil and sandy soil, and low-lying land, easy to accumulate water, the survival rate of sweet potato seedlings is low, when planting sweet potatoes, select high-quality potato seedlings in the nursery, the seedling height is 20-25 cm, the top three leaves are flush, the stem is thick and the leaves are dark green, and a small section of the roots is cut off after the seedlings are raised, which can promote early roots and more potatoes.

When planting sweet potato seedlings, the depth of potato seedlings and the number of nodes have a great impact on their survival. The soil temperature above 10 cm under the soil surface is high, the permeability is also good, and the temperature difference is large, which is conducive to the survival of seedlings. If you want to have a high yield of sweet potatoes, it is best to apply some basal fertilizer before planting sweet potatoes, and for farmers with conditions, you can also sprinkle some plant ash, so that the sweet potatoes that grow are not only larger but also sweeter.

When planting sweet potatoes, it is necessary to do deep ploughing, high ridges, 80% of the roots of sweet potatoes are distributed in the soil layer below 30 cm, and deep ploughing can solve the poor air permeability of the soil below 25 cm, which is conducive to the expansion of potato pieces. When planting sweet potatoes, it is best to choose after 3:30 or 4 o'clock in the afternoon, and when you want to plant sweet potato seedlings with high yield, it is best to make the sweet potato seedlings lie horizontally in the sweet potato kiln nest for 6 7 cm, and then plant them vertically. There are many factors that are very important to the yield of sweet potatoes, and it is not as simple as the planting method, such as the selection of seedlings, the nature of the soil, the degree of fertility, including the weather trend of this year, are all related to the yield of sweet potatoes.

Sweet potatoes can also be planted on rainy days, don't be afraid of too much water, you can plant sweet potatoes on rainy days without watering, saving labor costs and time. According to different situations, choose flat sowing, hole sowing, ridge sowing, ridge sowing after flat sowing, first ditching sowing and then ridge and other sowing methods. The seed potatoes planted should be free of injuries and diseases, and germination should be carried out before sowing.

After planting, it is necessary to pay attention to loosening soil and soil cultivation during the growth period, and also pay attention to problems such as insufficient fertilization, excessive nitrogen fertilizer, and late topdressing.

Sweet potatoes can be cultivated on rainy days, because sweet potatoes require a particularly large amount of water, and cultivating sweet potatoes on rainy days can make sweet potatoes easier to live. Things to pay attention to when cultivating sweet potatoes, first of all, the soil must be very loose, which is conducive to sweet potatoes taking root. Secondly, the water absorption of sweet potatoes is very large, so you should water the sweet potatoes three times a week.

You can't plant sweet potato seedlings on rainy days, and you can't wait for it to rain when the sweet potato seedlings are in the rain, which is also good for yourself, good for the land, and more convenient for planting.

When is the best time to plant sweet potatoes in the countryside? How should it be managed? China's sweet potato cultivation area is very large, from Heilongjiang in the north to Hainan in the south.

Due to the large difference in climate between the north and south of China, the planting season of sweet potatoes is also different. Today, I will tell you what season is the best time to grow sweet potatoes. Sweet potatoes are a light-loving crop, and sufficient light is conducive to photosynthesis.

Promotes the expansion of underground tuber roots. The temperature of sweet potato root expansion should not be lower than 16, 22-23 is the most suitable, so in mid to late April, the temperature gradually rises and stabilizes above 15, which is the most suitable time for planting spring sweet potatoes.

<> summer sweet potatoes can be planted on the ridges after the spring wheat harvest in June, and spring and summer sweet potatoes are mainly in the Yellow Sea.

Planted in the northern region. Autumn sweet potatoes are usually grown from mid-July to early August each year, mainly in the warm, humid southern regions.

In Hainan, the temperature difference is small throughout the year, so sweet potatoes can be grown all year round, and in winter sweet potatoes can also be planted in November. There are a few things you need to pay attention to when growing sweet potatoes.

The soil should be deeply ploughed before planting, usually 25 cm deep, but for high yields, it should be deeply cultivated to about 35 cm. Deep tillage can improve the permeability of the soil, promote the growth of sweet potato roots, and improve the drought and waterlogging resistance of sweet potato. The application of 1000-2500 kg of basal fertilizer can make the soil loose and fertile, and then combined with 20-30 kg of compound fertilizer.

Promotes the growth of sweet potatoes. It should be noted here that sweet potato seedlings should not be in direct contact with fertilizer, so as not to injure the seedlings. After planting, it needs to be watered in time to prevent the seedlings from dying.

In case of dry season, light water is required.

Drip irrigation is conducive to the survival of potato seedlings. After one month of planting, a lot of fertilizer and water are needed to promote the growth of sweet potatoes, and 5-10 kg of urea can be applied.

Carry out external administration. When the stems and leaves grow to more than 50 cm, the top should be picked in time to prevent the stems and leaves from growing vigorously and affecting the nutrition of the underground potato. When sweet potatoes grow to the late stage, due to the expansion of potato tubers, cracks appear on the soil surface, and when water is needed at the cracks, high-purity potassium dihydrogen phosphate can be applied per mu.

1-4 catties, where the leaves turn yellow, apply urea, and the proportion of potassium dihydrogen phosphate can be about 2 catties of potassium dihydrogen phosphate, 1 kg of urea, and roots along the cracks.

Spring sweet potato is to use the previous year's summer sweet potato storage to the Spring Festival as the mother seed, before and after the sting in a sheltered place to dig a good seedling pond, the sweet potato mother seed one by one row, on the cover slightly covered with sweet potato manure, watered through and then covered with plastic film, the sweet potato seedlings cultivated before the Qingming Dynasty can be planted. Before and after Qingming is the best time to plant spring sweet potatoes.

Sweet potatoes are generally determined by the climate, and can be grown all year round in places with good climate.

Sweet potatoes are generally grown in the open field in the northern region from April to May.

Sweet potato seedlings are afraid of cold, the temperature is too low, and it is easy to suffer from frost damage when planted in the open air, resulting in a low survival rate, and it is best to plant sweet potato seedlings when the local average temperature is stable to 15 °C.

Spring potatoes are cultivated in late April and early May in Beijing, and summer potatoes are cultivated in late June.

It should be planted in the spring. It is best to plant in a greenhouse, with enough sunlight. Able to photosynthesize.

I also like to eat sweet potatoes very much, sweet potatoes are sweeter, especially those that are a little burnt when cooked, but some people choose to plant sweet potatoes at the wrong time, so it is difficult to get a good harvest. Generally speaking, planting sweet potatoes should be selected between April or May, when the temperature is very suitable, if they exceed this month, their growth will be limited to a certain extent, for example, if some people choose to plant in October, it will be difficult to get the harvest of sweet potatoes. If you choose to plant sweet potatoes in April, it will take 5 to 4 months to be harvested.

No matter what kind of sweet potato is grown, we should choose a good variety, and the excellent variety determines our direct income. Some people like to eat purple sweet potatoes, some people like to eat red sweet potatoes, for what kind of sweet potatoes they like, what kind of varieties should be chosen, only by choosing an excellent variety, the future harvest will not be low. <>

After that, the planting must be turned over and the soil must be softened before the sweet potato seedlings are planted. If you don't do a good job of insect control, it is easy to cause some ants to bite off these rhizomes, resulting in inability to grow. For those who have been bitten by insects and those that have been bitten by rats, they must be cut off, and it will be better to plant them after cutting them off.

If you want to make sweet potatoes bigger and plump, then fertilization is indispensable. For growing sweet potatoes, you can choose this organic fertilizer, or you can choose chemical fertilizer. However, in rural areas, organic fertilizer is generally chosen, and for those dead grass and leaves, it will be burned and then effectively composted.

In some large-scale planting, chemical fertilizers will also be selected to be faster and more convenient, but can not make the soil get a better fertile effect, so if conditions permit, it is still necessary to choose organic fertilizer, such as animal manure, which is more conducive to the growth of sweet potatoes.

When planting sweet potatoes, they are generally planted in April, to select some seeds of better quality, and when sowing, you should also pay attention to the time, the spacing between the control, about 30 cm, when fertilizing, you can choose urea, and you can harvest it in October.