When is the best time to sow potatoes in Solanaceae? What is the planting method?

Potato (potato), a perennial herb of Solanaceae, is the fourth most important food crop in the world, after wheat, rice and corn, so when is the best time to sow potatoes? What is the planting method?

When is the best planting time for Solanaceae potatoes?

1 the northeast and northwest regions such as Gansu and Qinghai are generally planted in spring (mid-late April to early May) and harvested in autumn, and usually only one season of potato can be planted in a year, which is called the north and northwest one-season planting area.

(2) Shandong, Hebei, Henan, Shanxi, Jiangsu, Hunan, Hubei and other provinces and regions grow potatoes for two seasons a year. Among them, Shandong, Hebei and other Central Plains sowed spring potatoes in February and March and harvested from June to July; sowed autumn potatoes in August, harvested from the end of October to early November; sowed spring potatoes from January to February and harvested from May to June in some central and southern provinces such as Jiangsu and Zhejiang; sowed in September and harvested in December. These areas are known as the Central Plains and Central and South China.

(3) Guangdong, Guangxi, Hainan, Yunnan, Guizhou and other places can plant one season potato in the gap during the period of rice harvest in autumn. It is generally sown in mid-late October-November and harvested in February-March of the following year. Because most of the growing period is in winter, these areas are often called southern winter areas.

How do you usually grow potatoes?

Potato planting method:

Sowing seeds

Propagate with tubers, cut potatoes into tubers according to bud eyes, sow in ridges, sow in March, when the average temperature exceeds 25 °C, the underground tubers stop expanding. It will mature in about three months.

Timely early sowing: timely and early soil preparation, fertilization and sowing, so that the whole growth period of potato is relatively cool, low temperature season, so that potato blocks form and expand to avoid the period of high temperature.

Note that the thickness of soil is generally not less than 12 cm. If the thickness of the covered soil is not enough during sowing, the soil will be cultivated with the growth of the seedling for 1 or 2 times after emergence. The soil cover is too thin, the ground temperature changes violently, and the stolon is easy to jump out of the ground.

Field management

The potato plant is divided into aboveground and underground parts, the aboveground part has aboveground stem, pinnately compound leaf, flower bud and fruit, and the underground part has underground stem, root, stolon and tuber. Whether the aboveground part bears fruit or not is related to the variety and external environmental conditions. the different planting time of the same variety in different years and the same year will affect whether it will blossom or not.

Fertilizer application

The fertilization of potato is generally based on the principle of "giving priority to organic fertilizer, supplemented by chemical fertilizer, heavy application of base fertilizer and early application of topdressing". Because organic fertilizer is rich in organic matter, it is beneficial to fertilize and loosen soil, improve soil fertility, and is more conducive to potato tuber expansion and root growth. During the period of potato growth, the most need for water and fertilizer is the flowering stage, which is not only the season of rising temperature and rainfall, but also the stage of organic fertilizer gradually maturing, decomposing and releasing nutrients.

Time: 2019-03-18 Click: