When will the potatoes be harvested?

1. Northeast and northwest regions such as Gansu and Qinghai are generally planted in spring (from mid-late April to early May) and harvested in autumn. Usually, potatoes can only be planted for one season a year, which is called one-season planting areas in the north and northwest.

Second, Shandong, Hebei, Henan, Shanxi, Jiangsu, Hunan, Hubei and other provinces and regions plant two crops a year. Among them, spring potatoes were sown in February and March and harvested in June and July in Central Plains areas such as Shandong and Hebei. Sow autumn potatoes in August, and harvest at the end of June 65438+1October-June 65438+June 65438+1early October; Spring potatoes were sown in Jiangsu, Zhejiang and other central and southern provinces in 5438+0-February and harvested in May-June; Sow in September and harvest in February. These areas are called central plains and south-central planting areas.

Three, Guangdong, Guangxi, Hainan, Yunnan, Guizhou and other places can use the gap during the autumn harvest to plant a season of potatoes. Generally, it is sown in the middle and late June of 65438+1October-165438+1October, and harvested in February and March of the following year. Because the growing season is mostly in winter, these areas are usually called southern winter agricultural areas.

Growth cycle of potato

The growth and development of potato is also periodic, which can be roughly divided into four stages:

1. Mature tubers can only be planted as seed potatoes after a period of dormancy, that is, dormancy;

2. After sowing, it takes root and sprouts by its own nutrition, that is, the autotrophic stage;

3. After emergence, organic matter is produced through photosynthesis, and the roots absorb water and inorganic elements to form a complete plant growth system until flowering reaches the maximum lush degree of plants, that is, heterotrophic stage;

4. After flowering, the overground part stops growing, and the tuber expands rapidly, accumulating nutrients to maturity, that is, the tuber formation stage.