When do you plant sweet potatoes?

Question 1: When planting sweet potatoes in spring (March), they are called spring sweet potatoes, and after harvesting wheat (around the end of May), they are called wheat stubble sweet potatoes. My home is in the countryside of northern Anhui, which is generally the case.

Question 2: When is the best planting time for sweet potatoes? When will there be spring potatoes and stubble potatoes?

Spring potato: breeding began in the north, sowing after Qingming, and harvesting at the first frost.

Summer potato (potato after wheat stubble) refers to planting purple potato after harvesting one crop in northern China. Generally in the middle and late June of the solar calendar, this time is the best planting time for summer potatoes.

Question 3: When will sweet potatoes be planted? Sweet potato is a crop with high and stable yield. It has the characteristics of wide adaptability, strong stress resistance, drought tolerance and barren resistance, and less pests and diseases. When planted in a place with good water and fertilizer conditions, the average yield per mu of spring potatoes can reach 2000-3000 kg. However, due to the differences in natural conditions and cultivation levels, the yield per mu is extremely uneven. In order to give full play to the yield-increasing potential of sweet potato and achieve high quality and high yield, high-yield cultivation of sweet potato was put forward.

1. Seedbed seedling:

Accelerating germination and raising seedlings is an important link in the whole anti-season cultivation. The seedling raising time should be appropriately advanced to the middle of February, and the seed potatoes should be moved into the seedbed in the protected field for seedling raising. The seedbed is protected by double-layer film, and the seed potatoes are arranged neatly. After a layer of fine soil is covered, a layer of plastic film is laid flat, and then a layer of film is covered on the arch frame to improve the ground temperature of the seedbed. Punch holes in the flat plastic film to guide seedlings in time to avoid burning seedlings in sunny days and high temperatures. In 1 month, the seedbed is sprayed with water 1 time every 7 days, sprayed with water and fertilized twice a week after 1 month, and a batch is cut every 7- 10 days (when the plants are as high as 1 cm), and sprayed with water and fertilized twice a week after 1 sterilization.

Second, apply sufficient base fertilizer.

Choose sandy loam plots, and combine ploughing in early spring to apply 2-3 tons of farmyard manure, 0/5 kg of urea/kloc and 20 kg of phosphate fertilizer.

Third, plastic film mulching.

Plastic film mulching can increase the temperature and preserve moisture, improve the physical and chemical properties of soil and increase the temperature difference between day and night. Generally, sweet potatoes can be covered with high ridges and planted in two staggered rows, with a total distance of 60 cm, a coverage of 50 cm, a small row of 40 cm, and a plant spacing of 33 cm, leaving about 4,000 plants per mu. The height of the ridge is moderate. If the planting period is too dry, flat cover and flat planting can be used to facilitate seedling growth.

Fourth, timely and early planting.

Timely early transplanting and reasonable close planting: mid-April is the suitable time for seedling transplanting, and it is basically stable when the temperature rises in early spring all year round. The suitable time for sowing and seedling raising is after the end of late frost, when the ground temperature reaches 10cm or above 15℃, sowing can be done at the beginning of last winter or the beginning of the year, and furrows can be cleared when sowing. The side strip is 50 cm wide. In early and middle April, according to the seedling emergence speed of seedbed, the seedlings were sown in different stubbles, and the number of potato seedlings buried in the soil and the number of potato nodes were increased by straight-line flat planting. Insert 3500-4000 plants per mu with a spacing of about 33cm. Transplanting time should not exceed April 20, otherwise it will delay the harvest time and affect the transplanting season of continuous cropping late rice.

Timely and early sowing is the key to improve the yield of sweet potato. Under suitable conditions, the earlier the seedlings are planted, the longer the growth period, the earlier the tubers are, the more tubers are produced, the longer the tubers swell, the higher the yield and the better the quality. Planting seedlings too late, shortening the growth period, few and small sweet potatoes, low yield and poor quality. The suitable time for sowing and seedling raising is after the end of late frost. When the ground temperature reaches above 15℃, plastic film mulching can be appropriately advanced (around mid-April), and sowing can be started. In order to improve the quality of seedlings and ensure the vigorous growth of seedlings, "old hard seedlings" and weak seedlings should be eliminated and selected. Sweet potato should be planted shallowly on the basis of ensuring survival, and the planting depth is generally 5-6 cm. When planting, the soil should be sealed and the depth should be the same, so that the leaves are exposed on the ground. When watering, the seedlings should be exposed directly, and the seedlings should not be exposed for too long to prevent strong winds from affecting their survival.

Fourth, on-site management

1. Management of rooting and slow seedling stage. The slow rooting stage is from the growth of new roots after planting to the formation of tuberous roots, which lasts about 1 month. After the sweet potato seedlings are fixed, it is necessary to check the seedlings in time to ensure the whole seedlings. After the seedlings are planted, in case of severe drought, they should be watered in time to make the seedlings take root and survive. Generally, it should be watered once after planting, and then cultivated once every 10- 15 days to loosen the soil, raise the temperature, eliminate weeds, promote the rapid growth of plants and facilitate the formation of roots.

2. Management of branching and tuber formation stage. With the increase of temperature 30-40 days after planting, the stems and leaves grow faster, and the tuberous roots continue to form and expand. Water and fertilizer management should be strengthened in time. In case of drought, 5-8 kg of urea can be topdressing with water mu, and intertillage as soon as possible after watering.

3. Management of stem and leaf growth and root expansion period. From the first half of July to the end of August, the stem and leaf growth, root expansion and leaf area coefficient reached the maximum. Generally, in this period, control and promotion are needed to achieve ascension. This period is in the rainy season, with high temperature and fast plant growth. In order to prevent overgrowth, 50PPM paclobutrazol solution can be sprayed evenly in the field, and it is better to cover the leaves with liquid medicine without flowing. During this period, the underground roots expand rapidly. In case of drought, it is necessary to water, but the amount of water should not be too large ... >>

Question 4: When will sweet potatoes be planted ten days before and after the Tomb-Sweeping Day in the lunar calendar?

Question 5: When planting sweet potatoes, the requirements for temperature at different growth stages are different. Sweet potatoes like warmth and are afraid of cold. Low temperature is harmful to their growth. When the temperature drops to 15℃, they stop growing. When the temperature is lower than 9℃, potato chips will gradually suffer from cold damage and rot. In the range of 18~32℃, the higher the temperature, the faster the growth rate of sweet potato, and more than 35℃ is not good for growth. The suitable temperature for root tuber formation and swelling is 20~30℃, and the optimum temperature is 22~24℃.

Sweet potato planting time

Sweet potatoes should be nursed back to health two months before transplanting, that is, spring potatoes should be nursed back to health in late June, autumn potatoes should be nursed back to health in late June and winter potatoes should be nursed back to health in early August. One-time seedling raising or staged propagation can be adopted.

Corresponding planting time:

Spring sweet potato: from late March to early April.

Autumn sweet potato: around the middle and late August.

Winter sweet potato:1mid-October.

Mid-April is the suitable period for seedling transplanting. At this time, the temperature rises in early spring and is basically stable all year round. The suitable time for sowing and seedling raising is when the ground temperature 10 cm reaches 15℃ or above after the end of late frost, and the seeds can be sown, and plowed in the sun in early winter or early last year, and ridged and ploughed again when sowing. The side strip is 50 cm wide. In early and middle April, according to the seedling emergence speed of seedbed, the seedlings were sown in different stubbles, and the number of potato seedlings buried in the soil and the number of potato nodes were increased by straight-line flat planting. Insert 3500-4000 plants per mu with a spacing of about 33cm.

Question 6: How long does it take to harvest sweet potatoes, that is, sweet potatoes? Northerners often call sweet potatoes, Sichuanese call them sweet potatoes, and Hakka people are used to calling them sweet potatoes. For a long time, I always thought that its proper name was sweet potato, commonly known as sweet potato, and I didn't know until I verified it. On the contrary.

The name sweet potato must have its origin. Sure enough, sweet potato did not exist in ancient China, and it was not introduced from abroad until the middle of the Ming Dynasty. However, once this kind of food is introduced into China, which has a large population, it grows like a weed in the spring breeze. Can only say that China's national conditions are too suitable for it.

Sweet potato is food for the poor, and its life is as cheap as the poor. No matter what you do, it can grow well. When I was a child, I planted sweet potatoes myself. First of all, I have to cut the pickled sweet potato seeds into small pieces and paste them with urine sauce, just like making rice flour meat. After planting these small pieces of sweet potatoes, green sweet potato seedlings will soon grow. When the sweet potato seedlings grow to a certain length, cut them off with scissors, then cut a long sweet potato seedling into small pieces every two or three leaves, and then selectively plant these short seedlings. Don't underestimate these sweet potato seedlings that have been cut into pieces, as if they were fragile. In autumn, each seedling can harvest dozens of Jin of sweet potatoes.

Sweet potatoes are cheap and don't take much trouble to grow, but the only thing to pay attention to is that they should be planted in rainy weather and can survive if they are inserted into the soil casually. If it is sunny, it will kill the seedlings.

After the sweet potato survives, when the seedlings grow to several feet long, it is necessary to lift the sweet potato seedlings in the opposite direction, weed and stump, so that the sweet potato can grow fat, otherwise those seedlings will grow roots again, and only a handful of sweet potato seedlings will be received in the end.

Autumn, crisp and crisp, is the season to harvest sweet potatoes. The recycled sweet potato was put in for a few days, and the pulp was collected as soon as the cool autumn wind blew, and then it tasted sweet and delicious.

Question 7: When will the sweet potato be planted? The planting time of sweet potato is in Huanghuai area, and sweet potato (sweet potato) can be planted from May to June. The later planting, the lower the yield. It is suggested that planting should be completed before June 25th.

Question 8: When will sweet potatoes be planted? Now is a good time to plant sweet potatoes. I planted it a week ago. Plant it in rainy days, or you will get sunburned.

Question 9: When will the sweet potato be planted? Sweet potatoes are generally suitable for planting in April-June.

1. Seedbed seedling:

Accelerating germination and raising seedlings is an important link in the whole anti-season cultivation. The seedling raising time should be appropriately advanced to the middle of February, and the seed potatoes should be moved into the seedbed in the protected field for seedling raising. The seedbed is protected by double-layer film, and the seed potatoes are arranged neatly. After a layer of fine soil is covered, a layer of plastic film is laid flat, and then a layer of film is covered on the arch frame to improve the ground temperature of the seedbed. Punch holes in the flat plastic film to guide seedlings in time to avoid burning seedlings in sunny days and high temperatures. In 1 month, the seedbed is sprayed with water 1 time every 7 days, sprayed with water and fertilized twice a week after 1 month, and a batch is cut every 7- 10 days (when the plants are as high as 1 cm), and sprayed with water and fertilized twice a week after 1 sterilization.

Second, apply sufficient base fertilizer:

Choose sandy loam plots, and combine ploughing in early spring to apply 2-3 tons of farmyard manure, 0/5 kg of urea/kloc and 20 kg of phosphate fertilizer.

Third, plastic film mulching:

Plastic film mulching can increase the temperature and preserve moisture, improve the physical and chemical properties of soil and increase the temperature difference between day and night. Generally, sweet potatoes can be covered with high ridges and planted in two staggered rows, with a total distance of 60 cm, a coverage of 50 cm, a small row of 40 cm, and a plant spacing of 33 cm, leaving about 4,000 plants per mu. The height of the ridge is moderate. If the planting period is too dry, flat cover and flat planting can be used to facilitate seedling growth.