1, sweet potato varieties are divided into four varieties, namely red sweet potato, white sweet potato, yellow sweet potato and purple sweet potato;

2. Common sweet potato varieties with red hearts are Ji Shu 18, Guangshu 135, Zi Ning No.4 and Shu Jing No.6;

3. The sweet potato varieties in Huang Xin are Qin Shu 9 and Tian Xiang 1.

Extended data:

Sweet potato habit:

Sweet potato likes temperature, is afraid of cold, and is not cold-resistant. The suitable growth temperature is 22-30℃, and the growth will stop when it is lower than 65438 05℃. Different growth stages have different requirements on temperature, and the temperature in bud stage should be 18-22℃. Too high or too low temperature will affect the germination rate. Sweet potato likes light and is a short-day crop. Plant growth needs high light energy, which is a crop that is not tolerant to shade.

Appropriate amount of phosphate fertilizer can accelerate cell division, promote root growth, facilitate nutrient absorption and improve root quality. Appropriate amount of potassium fertilizer can improve photosynthetic efficiency, promote root growth, increase the number of root blocks, promote rapid root expansion and weight gain, and increase yield.

Baidu encyclopedia-sweet potato