Sweet potato planting technology, sweet potato planting technology

Cultivation points:

Seedbed seedling Seedling raising is an important part of sweet potato cultivation, and the seedling time is 40 days before transplanting (mid-March) seed potatoes are inserted into the seedbed to raise seedlings. It is necessary to specialize in seedling raising techniques.

Apply sufficient base fertilizer to select loam and sandy plots, apply 2-3 tons of farm fertilizer in early spring combined with ploughing per mu, and formula fertilization should be applied for high-yield cultivation, n:p:k=2:1:, high yield is directly related to the amount of fertilizer.

Timely planting of seedlings and reasonable dense planting.

The second half of April in the central part of North China is the appropriate period for seedling planting, and the seedlings are planted when the ground temperature of 10 cm reaches more than 15 after the end of the late frost, and 3500 4000 plants are planted per mu, and the plant spacing is about 33cm.

Manage. In the late growth period of sweet potatoes in late August, the weather is dry and rainless for a long time, so water a little water in time, and in case of autumn waterlogging, it is necessary to drain water in time to prevent hard core and rot. Foliar spraying, spraying with half a kilogram of potassium dihydrogen phosphate mixed with water 30 40 kg plus 800 times of the new high-fat film per mu, sprayed once every 15 days, a total of two sprays, such as the use of bulking hormone effect is better.

Planing The air temperature is above 10 or the ground temperature is above 12, that is, the harvesting is completed before the frost, and the potato nuggets are colded at the temperature of 8 consecutive times.

It's simple! You know it's going to grow stems! Cut off the stem and start from the middle part, don't cut the top one too short, and then stick it directly into the soil

I hope it helps you, and I like it.

The sweet potato cultivation techniques are:

First, the selection of land preparation.

When planting sweet potatoes, it is best to choose a plot with sufficient sunlight and convenient drainage, which is afraid of waterlogging and likes light, so it is easy to manage in the later stage. After the plot is selected, the land should be prepared, the soil should be turned over once, and the ditch should be dug and ridged, the ridge distance should be kept at about 80 cm, the height of the ridge should be 20 cm, and compound fertilizer should be applied to provide a fertile and soft soil environment for sweet potatoes, so as to ensure the normal growth in the later stage.

Second, seedling raising methods.

When cultivating sweet potatoes, seedlings should be raised two months in advance, spring potatoes usually start in late January, and autumn potatoes are in mid to late June. First, the seeds should be soaked in clean water, and then put into the seedling tray after germination. After the seedlings emerge, strengthen management, bask in more sunlight, and provide a warm environment to promote the vigorous growth of seedlings.

3. Transplant into the soil.

When the sweet potato seedlings have 3-4 leaves, they can be taken out of the seedling tray for planting, be careful to retain the soil at the roots as much as possible to reduce damage to the root system. Plant with a mass of soil and compact the surrounding soil. After planting, it is necessary to water thoroughly in time to allow the sweet potato seedlings to absorb enough water, so that they will quickly adapt to the new environment and resume growth.

Fourth, post-management.

Sweet potato seedlings consume more nutrients during the growth period, and they need to be topdressed in time to ensure that the nutrition is sufficient. If you find weeds in the plot, you should clean them up in time.

Sweet potatoes are drought tolerant, but they are afraid of waterlogging. If there is continuous rain, the water in the soil must be discharged in time, ventilation must be strengthened, and water accumulation is strictly prohibited. In addition, it is recommended to apply appropriate top dressing in the peak growing season, thin fertilizer is applied frequently, the nutrition is sufficient, the growth is more vigorous, the potato pieces will be more expanded, and the overall yield will be higher.

Sweet potatoes are grown as follows:

1.Buy sweet potato seedlings with intact roots.

2.Pick a plot of land in the yard. Sweet potatoes are mainly grown underground, and they don't require much space on the ground. However, they prefer a warm environment, so try to choose a sunny place (especially if you live in the north) and have good drainage.

3.Sweet potatoes are tuber plants that grow in soil. For them to grow well, the soil must be deeply cultivated by about 30 cm and loosened with gardening soil if necessary.

4.Treat the soil. Fertile soil is very important for a good harvest.

The surface is covered with a layer of nutrient soil, and large stones are picked up. Measure the pH of the soil. By adding peat soil or plant ash, the acidity or alkalinity is adjusted to a neutral pH level.

This is called soil improvement.

5.Determine the planting time. Because sweet potatoes love heat, they need warm soil to thrive. So it is necessary to wait until spring at the earliest, that is, a month after the last frost, to sow seeds.

7.Planting. Place the sweet potato seedlings one by one in a pit dug in advance, and cover the stems with about centimeters of soil. The leaves of sweet potatoes will grow vines, while the roots will grow tubers at a depth of 15-30 cm in the soil.

8.Cover the film. In cold weather, use a film to protect your sweet potatoes. This will also help prevent weeds from growing and sweet potato vines from overgrowing, robbing the tubers of nutrients.

9.Water. When sweet potatoes are first planted, they need a lot of water. Over time, you should water them less until you only do it once a week. Start watering daily, then reduce the frequency of watering from week to week.

10.Wait for the tubers to grow. Sweet potatoes require a relatively long growing period and are not harvested until early fall, which coincides with Thanksgiving. Continue watering and weeding every week to allow the plants to grow healthily.

11.Harvest sweet potatoes. About 120 days after planting, the sweet potatoes should have fully ripened. If possible, postpone the harvest of sweet potatoes (before frost) as much as possible, as this will produce larger and tastier tubers.

1. Sweet potato seedling technology.

1.Seed selection: To cultivate good potato seedlings, we must first choose potato seeds that are disease-free, injury-free, and frost-freezing. Summer potatoes have strong vitality, light disease, and fast seedling, so summer potatoes should be used as seed potatoes in production.

2.Building a bed: (1) Choose a plot with leeward and sunny conditions, flat terrain, good drainage, and low groundwater level. It is best to place the seedbed from east to west. Generally, the width of the bed is about one meter, the length depends on the type of potato, and it is covered with plastic film.

Hot things can be dried in advance, mashed with cow dung, wheat straw, and crushed grass (fresh cow dung can be dried and mashed in advance for later use). Generally, 1 part of cow dung and 2 parts of straw are used. Mix a small amount of cow dung and straw well, and then add a small amount of urine.

The experience of the masses is: "If you don't get wet, you will catch a cold; If it's not wet, it's warm". Generally, a thickness of 20-30 cm is better.

Once you've filled the hot stuff, pat it with a spatula to keep it loose. Then, cover with a film and seal tightly with soil. At 3-4 p.m., cover the straw mat to keep warm, and the sun will increase the temperature in the morning on sunny days.

After 2-3 days, the temperature of the hot matter increases when it rises above 35 degrees Celsius.

1. Seedlings: early-maturing varieties should be cultivated with three layers of insulation such as greenhouses and small arch sheds and plastic film, and mulch film should be used for cultivation after early emergence. 2. Land preparation:

Choose a sunny day for land preparation, the soil should be broken, fine, leveling, the fertilizer strip is applied to the bottom of the ridge, the ridge distance is 80 cm, the ridge height is about 20 cm. 3. Planting: Mulch film can be used to cover cultivation, and 4 nodes are inserted horizontally or obliquely into the soil during planting.

4. Pruning: 2-3 can be cut off when there are many branches.

1. Sweet potato planting technology

1. Seedling. The early-maturing varieties should be cultivated with three layers of insulation seedlings with greenhouse and small arch shed and plastic film, and the mulch film is used to cover the cultivation after early emergence, and the conventional cultivation can be sensitive and slippery with small arch shed and plastic film two-layer thermal insulation seedlings, the seedbed is 15-20 cm deep, about a meter wide, and the bottom of the bed is covered with a layer of organic fertilizer after watering and covering the soil.

2. Land preparation:The preparation of the land should be carried out on a sunny day, and the soil should be broken and finely beaten. After leveling, the fertilizer strip is applied to the bottom of the ridge, the ridge spacing is 80 cm, and the ridge height is about 20 cm. Special organic compound fertilizer can be used for fertilizer, and ordinary compound fertilizer is not recommended.

3. Planting. Can be used mulching cultivation, when planting, the 4 nodes are inserted horizontally or obliquely inserted into the soil, when the drought will expose the two leaves to the ground, the rest of the leaves are buried in the soil, the planting density is 4000 acres, and the plant spacing is 20 cm.

4. Pruning. For potato fields with more branches and more vigorous growth, 2-3 branches can be cut off with scissors, which can make nutrients flow back and let the potato pieces get more nutrients. When the potato seedlings grow to 40-60 cm, the tender tips should be removed, and the young tips should also be removed when the branches are too vigorous, which can regulate the movement of nutrients and promote the delivery of nutrients to the roots.

5. Top dressing. Seedling fertilizer is raised about 15 days after transplanting, combined with the first tillage, 750-1000kg of thin human and animal manure or urea per mu is applied. After the seam fertilizer is sealed by the stems and leaves of the group, the growth rate of the tubers is faster, and the top dressing is applied when cracks appear in the ground.

Potato fertilizer is topdressing in the branching tuber stage, which is generally carried out within one month after transplanting in combination with the second tillage, mainly nitrogen fertilizer, combined with phosphorus and potassium fertilizer. 10kg of superphosphate leaching solution, 3kg of urea potassium sulfate and 150-200kg of water are applied per mu, and the seam is watered in the afternoon on a sunny or cloudy day, and the top dressing is required to be uniform.

2. Harvesting methods of sweet potatoes

1. Early and medium-maturing varieties began to be harvested at the end of August and early September, and late-maturing varieties began to collapse in mid-October. It is forbidden to harvest in rainy days, and the latest harvest period is before the frost, and it is necessary to dig, load, transport and unload lightly during harvest to prevent potato peels and potato pieces from being bruised.

2. The storage requirements are that the relative humidity of the air is 85%-90, the temperature is 10-15, and the storage place should be done to prevent rodents and poisons, and be clean and hygienic. At the same time, it is necessary to have thermal insulation measures to prevent crushing and frostbite, and pay attention to ventilation and heat dissipation.

1. Prepare the land on a sunny day, and apply the fertilizer to the ridge after leveling, with a distance of about 80 cm and a height of about 20 cm. 2. For the more vigorous sweet potato fries, carry out the whole top branching. 3. Sweet potato seedling extraction stage is cultivated, and human and animal manure or urea is applied.

Top dressing can be carried out during the tubing fertilizer period, mainly nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer. Top dressing can be carried out when cracks appear in the ground during the fertilizer period of tubing cracks, and fertilizers such as urea and superphosphate can be applied.

1. Fertilization of the land.

1. The day of land preparation needs to be carried out on a sunny day, the soil can be broken and fine, and the fertilizer strip is applied to the bottom of the ridge after leveling, the ridge spacing is about 80 cm, and the ridge height is about 20 cm.

2. Special organic compound fertilizer can be used for fertilizer, when the planting area is large, the n, p, k and organic matter of the soil can be measured, and the soil pH value can also be measured in the south, and it is recommended not to use ordinary compound fertilizer when planting.

Second, pruning and topping.

1. For sweet potato fields with more branches and vigorous growth, you can cut them off with scissors.

2. Topping can adjust the operation of nutrients and promote the delivery of nutrients to the roots. When the potato seedlings grow to about 40-60 cm, the tender tips can be removed, and the tender tips can also be removed when the branches are too vigorous.

3. Timely top dressing.

1. During the period of sweet potato seedling fertilizer, about 15 days after planting, it can be combined with the first tillage, and about 750-1000 kg of thin human and animal manure and about 1000 kg of urea per mu can be applied.

2. During the period of potato fertilizer, top dressing can be carried out in the branching potato setting stage, generally combined with the second tillage within one month after insertion, mainly with nitrogen fertilizer, supplemented by phosphorus and potassium fertilizer.

3. During the fertilizer period of sweet potato fruiting, after the stems and leaves are sealed, the growth rate of the tubers will become faster, and the top dressing can be carried out when cracks appear on the ground. In this Qin Xun period, 10 kg of urea, 10 kg of superphosphate leaching solution, 3 kg of potassium sulfate and 150-200 kg of water are mixed with water to form a nutrient solution, which can be watered along the seam in the afternoon on cloudy and sunny days, and pay attention to the uniform topdressing.

Fourth, the growth period of sweet potatoes.

1. The early stage refers to the period from planting seedlings to sealing pots, spring potatoes last about 60-70 days, summer potatoes are about 40 days, the stems and leaves of sweet potatoes grow slowly, and the root system develops quickly.

2. The middle term refers to the period from the sealing of the pot to the peak of stem and leaf growth, the spring potato lasts about 50 days, the summer potato is about 30 days, and the sweet potato will expand slowly during this time, and the stem and leaf grow fast, which is the period when the stem and leaf are mainly grown.

3. The late stage refers to the period from the beginning of the decline of stems and leaves to the harvest, spring potatoes after late August, summer potatoes after early September, sweet potatoes in this period is the main period of root expansion.

The whole process of sweet potato planting technology includes selecting high-quality seed friends, judging seedlings, leveling the land, planting into the soil, and post-management.

1. Handle the sweet potatoes.

Before planting, the sweet potatoes should be treated first, the sweet potatoes with a complete body size should be selected, and the potato pieces should be buried in the moist sandy soil for germination, and the sweet potatoes will germinate in about a week after germination. After germination, cut the potato pieces into small pieces, making sure that each piece has two or three sprouts on top.

2. Land selection and land preparation.

To grow sweet potatoes, choose plots that are easy to drain, have deep soil, and are rich in nutrients. Before planting, the land should be prepared, and all the debris in the plot should be cleaned and turned over to dry once.

3. Plant into the soil.

When planting tubers, dig a shallow trench in the plot with a row spacing of 30 cm. Place the processed tubers in a shallow trench and cover them with a thin layer of soil. If the temperature is unstable and too low during planting, cover the soil surface with a layer of plastic film to increase the soil temperature.

4. Post-management.

If the temperature is right, the planted tubers will sprout well in no time. Sweet potatoes consume more nutrients at the seedling stage, and people need to apply a rotting farm fertilizer to sweet potatoes. Sweet potatoes are not tolerant to waterlogging, and if they encounter continuous rain, they must drain the stagnant water in the plot in time.

Growing conditions for sweet potatoes

Sweet potatoes need to be fertilized several times during the growth process, and people need to fertilize sweet potatoes many times when planting. Sweet potatoes are relatively adaptable to the soil, and can generally obtain a certain yield in various types of soils under good cultivation and management conditions, whether it is acidic soil or alkaline soil, sandy soil or clay soil, low injection soil or sloping soil.

The origin of sweet potatoes is the tropics, and sweet potatoes are a relatively warm crop. Sweet potatoes require higher temperatures throughout the growth process, and different growth periods have different temperature requirements. Sweet potatoes prefer a warm environment, are afraid of cold, and are not cold-tolerant, and the suitable growing temperature for sweet potatoes is between 22 and 30 degrees.