1, Potatoes have strong cold tolerance and are watered by pests and diseases. Generally, it is spring sowing and autumn harvest, so you can choose not to know in late April. At this time, the temperature is suitable for its growth, and it can sprout after one month. In summer, when the temperature is high, the stems and leaves of Potatoes will grow rapidly, while in autumn, the stems and leaves will be slow, and the underground tubers will begin to swell. In winter, the stems and leaves on the surface will begin to taste bitter, and the tubers will be developed. At this time, it is the time to go on the market. If we don't sow in spring, Potatoes will miss the best time for the growth of stems and leaves in summer, and the tubers in autumn will not expand in time, so the benefit of harvesting in winter is extremely low.

2. Potatoes are planted in spring and harvested in autumn. When planted for one year, they can be harvested for many years. When planting, we must first carefully prepare the soil, apply completely decomposed farm manure or organic matter as base fertilizer per mu, and also properly mix some nitrogen and phosphorus fertilizers, generally about 40-50 kg each. Then, after deep ploughing, the fertilizer and the soil are mixed evenly, and the ridge is opened, generally before the Grain Rain, and the row spacing is controlled to be about 25-30 cm, and gradually 10- 15 cm, and about 30 kg of seeds are used per mu.

3. It is not advisable to water after sowing, so as not to cause soil hardening and affect normal seedling emergence. Generally, seedlings emerge within one week after sowing. When watering at seedling stage, a small amount of nitrogen fertilizer should be applied topdressing to promote seedling growth, and at the same time, intertillage weeding should be done well, and intertillage should be shallow, so as not to hurt roots; Weeding should be done frequently to prevent weeds and seedlings from competing for water and fertilizer, which is not conducive to seedling growth. When the seedling grows to about 10 cm, it will produce purple flowers, which will last for a long time until autumn, and at the same time it will start to branch and pack. When it grows to about 30 cm, it will form underground tubers and expand spiral tubers at the top of fibrous roots.