Where is the producing area of sweet potatoes? How to plant in order to get high yield?

Sweet potato, also known as sweet potato, sweet potato and sweet potato, is a crop that can be used as both a staple food and a vegetable. It is loved by people because it is rich in protein, starch, pectin, cellulose, amino acids, vitamins and a variety of minerals, and the market demand is great. So where is the origin of sweet potato? How to plant in order to get high yield?

Where is the origin of sweet potatoes?

Sweet potato is more suitable for growing in the soil which is Shajiang black soil and silt black soil, the soil layer is deep, and the soil is loose, permeable and well drained. At present, it is planted in the north and south of China, and the large-scale cultivation of sweet potato is mainly concentrated in Anhui, Northeast three provinces, Henan, Hebei, Hunan, Hubei and other areas.

In particular, the sweet potato root style in Sixian County, Anhui Province is famous. Dajiao, Dinghu, Caogou and Heita in the northwest of Sixian County are all the main producing areas of sweet potato. The sweet potato produced in these areas has bright skin, correct root shape, good quality, high commodity rate and high flour yield.

Second, how can sweet potatoes be planted with high yield?

1. Select sweet potato varieties with high yield.

The sweet potato varieties should be selected according to the rich nutrient elements in the planting area, the fertility of the soil and the local humidity, and the sweet potato varieties with good quality, strong resistance and high yield should be selected.

The main recommendations are "Shangshu 19", "Xushu 22" and "Xushu 25-2", "Beijing 553", "Longzhi 9", "Jishu 4", "Sankang 1", "Sankang 8", "Yushu King", "Japan Hongdong", "Zhejiang Jinyu" and other varieties.

These sweet potato varieties mentioned above have strong drought resistance and disease resistance, high yield and high yield, so they are suitable to be popularized in the local area.

2. Planting plot selection

It is suggested to choose fields with fertile leeward and sunny soil, deep soil layer and convenient management. The seedbed is turned deep, about 1.5 meters wide and 33 centimeters wide.

In addition, it should be noted that in the selection of sweet potato planting plots, continuous sweet potato cropping should be avoided as far as possible to prevent pathogens from accumulating in the soil, and the plots planted with corn, soybean or vegetable fields should be selected.

3. Seed potato should be handled properly.

To ensure that potato cubes are clean, hygienic and disease-free, buy age-appropriate, healthy, disease-free sweet potato seedlings from regular seedling companies, and select high-yield, stable, storage-resistant and suitable local varieties, and avoid buying sweet potato seedlings from farmers or vendors as far as possible.

If it is a potato block to breed, choose a non-scar and disease-free block as the seed agency, and soak the seeds with 1000 times of methyl topiramate or 25% carbendazim for 5 minutes, or soak the seeds in 45-50 ℃ water for 5-10 minutes before sowing.

This can not only ensure the yield and quality of sweet potato, but also ensure the safe storage of sweet potato.

4. Master the planting time

Sweet potatoes can be planted in spring, autumn and early winter. Generally, the planting time should be controlled when the soil 10cm deep ground temperature is more than 16 ℃. Spring potatoes are generally planted from late March to "Qingming Festival". Autumn planting is generally planted before and after "the Beginning of Autumn", no later than "the End of Heat" at the latest.

5. Fertilization should be scientific.

We should adhere to the fertilization principle of "giving priority to farm manure, supplemented by chemical fertilizer, giving priority to base fertilizer and supplemented by topdressing".

6. Strengthen field management

After the planting survived, the main vine of sweet potato should be topped when growing to 20~25cm, in order to promote the growth of tender branches, and timely irrigation to prevent drought, timely weeding to control grass famine.

Warm Tip: sweet potato has no obvious mature period, and the early sweet potato cultivation can be harvested according to the market price.