Autumn Potato Sowing Techniques

1. Whole potato sowing: the sowing time of autumn potato cultivation coincides with the high temperature and rainy season in August. Slicing sowing is easy to rot dead seedlings. Whole potato sowing can reduce rotten pieces and dead seedlings in autumn, prevent degradation and increase yield.

Seed potato for autumn sowing should be about 50 grams of small potato harvested in advance and selected in spring, which should be injury-free, disease-free, bright skin color and moderate size, and need about 200 kilograms of seeds per mu.

Seed potato is dormant when sowing in autumn. Seed germination should be accelerated or soaked with medicine before sowing. Generally, 5 days before sowing, the seed should be soaked in 15 20 mg / L gibberellin solution for 20 minutes, then be removed and buried in wet sand to accelerate germination. When the bud is 1 cm long, sow seeds.

Autumn potato sowed too early, high temperature, easy to rot, serious virus disease, too late will lead to insufficient growth period and low yield. The seeds should generally be sown in North China from August 5 to 15.

two。 Sowing method: the sowing of autumn potato is generally different from that of spring potato, because autumn potato sowing is in the season of high temperature and strong light, in order to create a cooler environment, it should be sowed on the shady slope to facilitate the emergence of seedlings early and evenly. The sowing time should be carried out before 10:00 in the morning and after 3 o'clock in the afternoon. And with the trench, with sowing, with the cover of soil. Generally, the line spacing is 60 cm and the plant spacing is 25 cm.