How to disinfect seed potato with round yam?

How to disinfect the seed potato of round yam? the bacteria of round yam are mostly attached to the seed potato in the winter, in order to prevent the occurrence of disease, the seed potato should be disinfected; otherwise, the bacteria can easily invade from the cut section, resulting in rot and lack of seedlings. In general, seed potatoes should be stored in the original seal to survive the winter. When slicing seed potatoes before planting in spring, in addition to keeping kitchen knives, baskets, mats, boards, pots and other utensils clean and hygienic, seed potatoes can be soaked in formalin 80 times solution for 20 minutes. Then, put the seed potatoes on the mat to dry for 2-3 hours, and then move to the indoor dark place for 1 day to evaporate the excess water. When cutting seed potato, we should take more seed potato cortex as far as possible to avoid damage to the cortex in order to sprout neatly. After the seed potatoes are cut into pieces, disinfect them in formalin 80 times solution for 20 minutes, then disperse the water in a cool place. Finally, apply plant ash or hydrated lime on the cross section. In this way, the seed potato before and after cutting, twice with formalin disinfection, the effect is very good. It can also be disinfected by heat treatment, that is, soaking seeds in warm water for 40 minutes at 48 ℃ (maximum not more than 0.50 ℃) can kill nematodes. Click to see more yam planting techniques click to see more vegetable planting techniques