1, land selection and land preparation
The edible part of cold potato is underground tuberous root, and sandy loam with deep soil layer, good drainage, medium fertility and strong water and fertility conservation should be selected. Before sowing 15 days, the clods will be broken and raked to make high ridges with a width of 1.2 ~ 1.3 meters, and the furrow depth is about 25 cm, which is convenient for drainage.
2. interplanting and replanting
Unearthed 15 days after sowing. After the first pair of basal leaves appeared, the seedlings were sparse and supplemented, and 1 ~ 2 seedlings were left in each hole, and finally 1 seedling was fixed. Replenish seedlings in time and transplant seedlings with soil balls on cloudy days.
3, intertillage weeding
Grasp the intertillage weeding before the seedlings reach 7 cm high to the lateral vines, and the intertillage should be shallow to avoid damaging the roots.
4, playing flowers and picking cores
The inflorescence of cold potato starts from 5 ~ 6 knots, and then almost every inflorescence, except for the seed, should be cut off immediately when the inflorescence occurs, and its leaves should be preserved.
5, the whole scaffold
When the cold potato seedlings grow to a height of 30 cm, insert 1 mangosteen or cotton stalks into each hole to form a herringbone frame, and tie adjacent cold potato seedlings together for vines to climb on the frame.