When are autumn potatoes planted? Let's analyze it in detail.

1. Potatoes in China are generally planted from June 10 to February 12, and can be harvested from June 10 to March of the following

When are autumn potatoes planted? Let's analyze it in detail.

1. Potatoes in China are generally planted from June 10 to February 12, and can be harvested from June 10 to March of the following year. Of course, if climatic conditions permit, potatoes can be planted all year round in theory, and the specific planting time depends on the local climate.

2. Northeast and northwest regions such as Gansu and Qinghai generally sow in the middle and late April to early May in spring (that is, after Grain Rain in 24 solar terms and before long summer) and harvest 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.

3. Shandong, Hebei, Henan, Shanxi, Jiangsu, Hunan, Hebei and so on. In Shandong, Hebei and Central Plains, spring potatoes are planted in February and March (after the rain and before the earthquake in the 24 solar terms), and June-July is the harvest season; Autumn potatoes are planted in August (after beginning of autumn in the 24 solar terms, but before summer), and the first harvest is10 ~1/kloc-0.

4, Jiangsu, Zhejiang and other central and southern provinces can plant spring potatoes from June 5 to February (after the severe cold in 24 solar terms, before beginning of spring and before beginning of spring), and harvest them from May to June; Sow in September in autumn (after the dew in the 24 solar terms and before the autumnal equinox), and harvest in 65438+February. These areas are called the Central Plains and the Central and South China.

5. Guangdong, Guangxi, Hainan, Yunnan, Guizhou and other places can plant potatoes in the gap after rice harvest in autumn. Generally, it is sown in the middle and late June of 65438+ 10 ~10/0 (after the first frost of the 24th solar term, before beginning of winter), 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.

6. In addition, when potatoes are propagated asexually with tubers, seed potatoes can germinate and grow at soil temperature of 5 ~ 8℃, and the optimum temperature is 15 ~ 20℃. The suitable temperature for the growth and flowering of plant stems and leaves is 16 ~ 22℃. The optimum temperature for tuber formation at night is 10 ~ 13℃ (soil temperature is 16 ~ 18℃), and it forms slowly when it is higher than 20℃. When the temperature drops to -2℃, it will be frozen.