Detailed Explanation of Key Points in Potato Cultivation Techniques

Seed selection: choose tubers with uniform shape and fine, smooth skin as seed potatoes.

Disinfection: the disinfection method is to use 1 part of 40‰ formalin mixed with 200 parts water, spray the potato pile or seed potatoes for 5 minutes, cover with plastic film and fumigate for 2 hours, then spread into a thin layer and air-dry with ventilation. The cutting knife must also be disinfected.

Whole-tuber planting: choose healthy whole tubers for planting, which has the good effects of preventing disease infection, giving play to apical dominance, and ensuring full and strong seedlings.

Cutting and sprouting: in order to save seed potatoes and break dormancy, cutting is sometimes imperative. Cut pieces weighing more than 25 g, with 1-2 buds, and after cutting mix with plant ash for seed dressing. Sprouting is carried out indoors, with potato pieces spread about 30 cm thick, covered with moist soil, kept at 10°C-15°C until buds grow (about 0.5-1.0 cm); they can also be treated with 0.5-1.0 unit gibberellin for 5-10 minutes, then sprouted at a suitable temperature.