First, sowing before drying seeds: potatoes before sowing can increase production by about 10%. 15-20 days before sowing, the potato seeds were tiled in a warm sunny place in the hospital, and they were sun-heated by natural light. The general seed layer thickness is about 15 centimeters. It is best to keep it at 12-18 degrees Celsius during the day and no less than 0 degrees Celsius at night. Turn it once every 3-4 days. Second, cut into chunks: stalked seed potatoes, cut 1-2 days before sowing. It is best to cut large chunks of 30-40 grams to ensure that seedlings develop enough nutrients. Third, remove small, weak shoots: only one main bud, all small and weak buds removed immediately sowing, can make the main bud early unearthed 2-3 days, an increase of about 8%. Fourth, small whole potatoes for the species: the entire small potato as a kind of crop can produce more than 105 equal cuts. The medium size is preferred for seed potatoes. V. Seed soaking in the ash of plants: Take proper amount of grass and wood ash, add water to make into liquid state, put the seed potatoes into the soak for 36 hours, remove and dry to plant. Six, rice vinegar soaking: 3-4 days before sowing, take 200 grams of high quality rice vinegar, 50 kilograms of water, the seed potatoes will be soaked 3-4 from time to time; remove and dry after sowing, can be 3-4 days in advance emergence, increase production About 10%-15%. 7. Remove buds: When the potato plants bud 30%, flower buds will be removed, once every 3-4 days, 2-3 times in succession, can receive significant yield increase. Eight, spraying paclobutrazol: When the potato plants budding, with 50 grams of 15% paclobutrazol per mu, spraying 50 kg of water, can prevent plant growth, accelerate potato expansion, increase production.
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