Purple sweet potato is non-toxic, edible, is a common food on people's dinner table.

Purple sweet potato is a set of nutrition, health care in a sweet potato special food. Because of its violet color, so called purple sweet potato. It contains starch, protein, sugar, but also rich in purple pigment, chlorogenic acid, vitamin B1.B2.C and niacin and linoleic acid.

Selenium, iodine, copper, iron, potassium, manganese, zinc and other mineral trace elements are several times the ordinary sweet potato, so it is also called selenium-rich purple sweet potato. Purple sweet potato also has anti-mutagenic, antioxidant, lower blood pressure, protect the liver and other functions;

Purple sweet potato contains a large number of mucus substances, can maintain the elasticity of the human cardiovascular wall, to prevent atherosclerosis, is conducive to maintaining the respiratory tract, the digestive tract, the lubrication of the joint cavity, frequent consumption of the human body must be a complementary and health care effect of the micronutrients.

Expanded information:

Purple sweet potatoes like a warmer climate, the stem and leaves suitable for the growth of the temperature 18 The optimal temperature for the growth of tuberous roots is 22 to 24 ℃, the ground temperature is lower than 20 ℃ to stop expanding.

Purple sweet potato is a short-day crop, need sufficient light, intensity. During the growth of purple sweet potato suitable soil moisture for the field maximum water holding capacity of 60% to 80%.

Purple sweet potato is a genus of potatoes, due to the growth habit of purple sweet potato and elements of different, choose a different soil on the quality of purple sweet potato products have an impact on the requirements of black, purple, sandy, yellow clay, slightly higher terrain, sunny for the best.

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