The growth period of cold potato is about 90- 120 days. After planting in April-May, fleshy roots can be harvested in 3-4 months. The germination temperature of cold potato is about 30 degrees, and the suitable temperature for flowering and pod setting is 25-30 degrees. When planting, the plastic film should be removed in late May, and when the seedling height is 15 cm, bamboo poles should be used as cold potatoes.

The growth period of cold potato is about 90- 120 days. After sowing in April-May, succulent roots can be harvested in March-April, early-maturing varieties in the Yangtze River valley can be harvested in September, and middle-late maturing varieties10-165438+1early October can be harvested.

The temperature of cold potato requires that cold potato likes warm and sunny climate conditions, the temperature of 30 degrees is needed in the germination stage, and the suitable temperature is 25-30 degrees in the flowering and pod setting stage. The tuberous roots of plants have wide adaptability to temperature and can expand and grow at lower temperatures.

How to manage the cold potato in late May, the plastic film should be removed. When the seedling height reaches 15 cm, the herringbone scaffold with bamboo poles is about 2 meters high, and then the vines are manually put on the shelves. In addition, lateral vines, buds and inflorescences should be removed during the growth period of cold potato to promote the expansion of root tuber.

What does a cold potato look like? Cold potatoes belong to twining herbs vines. Its massive roots are spindle-shaped or oblate, its stipules are linear-lanceolate, its leaflets are rhombic or oval, its corolla is lavender or reddish, and its pods are banded, slender and rough.