Sweet potato is a common rural food crop of Panicum, and its underground tuber can be made into vegetables, which is delicious. Once a staple food, it can also be used to make alcohol and starch, and it is a natural nutritious food. Sweet potato contains a lot of starch, which makes people feel full after eating, thus reducing their food intake, so they can achieve the effect of losing weight. ?

Special sweet potatoes are different from ordinary sweet potatoes. Ordinary sweet potatoes are only suitable for eating, while special sweet potatoes can not only be eaten, but also be processed into a variety of industrial products, such as starch and convenience foods. The development prospect of characteristic sweet potato is broad, especially in rural areas. The colorful sweet potato in the characteristic sweet potato is bright in color and rich in nutrition, and tastes like fruit. Its appearance is also very beautiful, and the market price is also high. Some colorful sweet potatoes also contain a lot of high-purity food pigments, which can be used as raw materials for high-grade cosmetics, with high price and high added value.

When planting special sweet potato, soil preparation should be carried out first, and the cultivation depth should be higher than 25 cm, which is beneficial to the normal growth of sweet potato seedlings. When planting in spring, the temperature is generally 15? Above, the temperature is high in summer, so it should be planted as soon as possible. It is also necessary to determine the planting amount according to the terrain, and apply chemical fertilizer 30 days after sowing to promote the normal growth of special sweet potatoes. If the growth is too lush, it is necessary to use drug spray to inhibit the growth and ensure the normal development of the root system.

Before the end of August, it is necessary to pull out and lift the vines twice, because turning over the vines is easy to cause damage, breakage and spatial growth order. The fertilizer absorption capacity of special sweet potato roots decreased in the late growth stage. In order to accumulate and continue to form dry matter, it is necessary to spray fertilizer on leaves to prevent premature aging.

The nutritional value of special sweet potato is higher than that of sweet potato, and it is also widely used in industry. If you want to plant characteristic sweet potatoes in rural areas, you must be good at learning and studying planting techniques, dig deep into their value, and let characteristic sweet potatoes bring you unlimited wealth.