How sweet potatoes are grown, how sweet potatoes are grown

Farming really requires technology and skill, otherwise the production capacity will not meet expectations.

The planting of sweet potatoes mainly starts from the aspects of land selection, seed potato treatment, planting into the soil, and later management.

1. Land selection and land preparation

To plant sweet potatoes, it is necessary to choose plots that are easy to drain and have deep soil layers, and they should be rich in nutrients, so that sweet potatoes can germinate and grow better in the later stage of the soil environment. Before planting, the land should be prepared first, all the debris in the plot should be cleaned up, and the soil should be turned over and dried once to eliminate the bacteria in the soil. After treatment, it is necessary to apply well-rotted farmhouse manure in the soil as base fertilizer to improve the fertility of the soil and lay the foundation for high yield in the later stage.

2. Handle seed potatoes

Before planting, the seed potatoes should be treated first, and the seed potatoes with complete body shape, no disease, no injury and no insect eyes should be selected, and the potato pieces should be buried in the moist sandy soil for germination, and the seed 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. After cutting, quicklime should be sprinkled on the wound to sterilize and disinfect.

3. Plant into the soil

When planting tubers, dig a shallow trench in the plot with a row spacing of 30 cm. The processed tubers are then placed in a shallow trench and covered with a thin layer of soil. If the temperature is unstable and too low during planting, it is necessary to cover the soil surface with a layer of plastic film to increase the soil temperature, which can promote germination as soon as possible and facilitate management.

4. Post-management

If the temperature is right, the planted tubers will sprout quickly. After germination, the mulch should be lifted to avoid covering the seedlings. In order to promote better germination and growth, it is recommended to apply a rotted farmhouse fertilizer to it to supplement nutrients to promote the seedlings to grow more vigorously and faster.

Note that sweet potatoes are not resistant to waterlogging, if it encounters continuous rain, it is necessary to drain the stagnant water in the plot in time, strengthen ventilation, and give sufficient light.

Choose loose and fertile soil, bury sweet potato tubers in the soil, let the land receive plenty of sunlight, and water regularly.

Sweet potato, also known as potato, sweet potato, sweet potato, etc., today, the sweet potato planting area and total output of the country in China and China occupy the first place in the world.

Sweet potatoes like temperature and fear cold, 5-10 cm when planting seedlings, the ground temperature is about 10 and does not root, 15 need 5 days to send the root of the hole, 17-18 the root is normal, 20 3 days to root, 27-30 only one day to root.

When the temperature is 25-28, the stems and leaves grow quickly and delicately, and when the temperature is above 30, the stems and leaves grow faster, but the tubers expand slowly. Above 38, the respiration consumption is more, the growth of stems and leaves is slow, the growth of stems and leaves is also fast when it is below 20, the growth stops at 15, and the duration below 10 is too long to meet frost, and the stems and leaves die.

Sweet potato likes light, in the case of sufficient light, the leaf color is thicker, the leaf age is longer, the stem vine is thick, the stem conduction tissue is developed, and the yield is higher. If the light is insufficient, the leaf color is yellow, the leaves are more decided, the leaf age is short, the stems and vines are slender, the conduction tissue is not developed, the organic nutrients formed by assimilation are less transported to the roots, and the yield is low.

1. Seedlings. Choose the sunny, leeward soil layer deep and fertile soil as the seedbed, fine land preparation. Potato seeds are generally flat, and the surface level of potatoes is slightly lower than the soil surface and remains consistent to achieve full seedlings.

After the seedlings emerge, the two ends of the agricultural film must be uncovered in time on a sunny day to cool down, and the agricultural film must be covered at night to keep warm. After the seedlings are raised, the film is removed in time, and the top dressing is watered, mainly farmhouse fertilizer. And spray a new high-lipid film to protect moisture and prevent water evaporation, heat preservation and antifreeze, and isolate pests and diseases.

When the temperature stabilizes above 20 degrees Celsius, do not cover the film, and remove the agricultural film.

2. Reasonable dense planting, timely and early planting. Xiaoman to the summer solstice is the best season to plant red roots. Plant sweet potato seedlings on a sunny day, watering first, and then planting.

The planting density is based on the ridge width, reasonable dense planting, reaching more than 3000 to 3500 plants per mu. Then spray the new high-lipid film, which can effectively prevent the water on the ground from evaporating, the water of the seedlings from transpiring, isolate pests and diseases, quickly adapt to the new environment, and grow healthily.

3. Fertilizer and water management. Sweet potato is a potash-loving crop, especially should not be applied indiscriminately, such as a large amount of nitrogen fertilizer, so as not to cause the growth of red vine too vigorously, affecting the yield and starch content. Note:

Fertilization must be timed, preferably 15-20 days after planting. At the same time, the spraying of new high-lipid film can prevent the infection of pathogens, improve the ability to resist natural disasters, improve the intensity of photosynthesis, and protect the growth of seedlings. During the swelling period of potato blocks, the fruit was sprayed to make the underground fruit nutrient transport duct thicker, improve the swelling vitality of the fruit, smooth fruit surface, strong fruit shape, high quality and high yield.

Fourth, vine management. Sweet potatoes are long vine crops, suitable fertilizer and water conditions, vines can grow up to 4-5 meters, if not controlled, will seriously affect the yield. Here's how:

Timely cultivation and hoeing of grass and soil cultivation and the implementation of chopped cutting method, and spraying to promote Kao No. 3 can transform plant vegetative growth into reproductive nutrition, inhibit the crazy growth of main shoots, and promote flower bud differentiation. Note that the whole red vine should not be cut, after each short cut, the vine is lifted, put in place, the vine is not allowed to turn the vine in an all-round way, to avoid disturbing the foliar coefficient, conducive to photosynthesis, to promote high yield.