Choose good breeds The selection of improved seeds is an important part of the high-yield cultivation of potatoes. Cut into pieces for germination The germination began in about early March. After cutting, use small ash dry mix or carbendazim powder 1:200 times to sterilize the seed soaking in water. After the seed blocks are dried, the seedbed will start to accelerate the germination. One is to use sand in the corner of the room above 15℃ to accelerate the germination, one layer of sand and one layer of the seed block; the other is to dig a hole in the east-west direction of the outdoor ventilated and sunny place to accelerate the germination, the pit is deep About 25 centimeters, one layer of sand and one layer of seeds, 3 layers are suitable, and then covered with arch shed film, and covered with straw curtains at night for heat preservation. When the buds grow to 0.5-1.0 cm in length, start seeding. Site preparation Look at the soil moisture before planting. If the soil moisture is not good, consider irrigating the soil to create soil moisture. Potatoes are generally planted in double ditches. When ditching, use a large row of 50 cm and a small row of 40 cm. Seeding cover film When sowing, there are two ways to put the seed blocks in the ditch: one is the seed buds face down, the potatoes will grow with strong roots, and the potatoes are small but large, and the seedlings are 2-3 days late; the other is the seed buds face up. The potato roots grown by this method are relatively short, the potatoes are small but many, and the seedlings are 2-3 days earlier. After the end of planting, take soil from both sides of the big row, cover the space of the potato ditch and the small row, and apply a micro-membrane cover to tightly press it. Emergence and air release and seedling management About 20 days after sowing, the seedlings will be exposed in the soil. At this time, the micro-film can be pierced at the place where the seedlings are washed to prevent steaming of the seedlings. When the seedlings grow to a height of 10 cm, press the membrane around the seedlings with soil. Potatoes are not suitable for watering in the early stage of growth, and water after they see flowers. Watering can be done every 10 days in drought and no rain, and watering should be stopped 10 days before harvest. Scientific fertilization When 80% of the seedlings are unearthed, reapply the quick-acting seedling fertilizer, and spray Diguozhuang Diling at the potato seedling stage to make the underground fruit nutrient transport tube thicker, improve the fruit swelling vitality, smooth fruit surface, strong fruit shape, and high-quality high yield. Potatoes like to use farmyard manure, 4000-5000 kilograms per acre is appropriate. Pest control In the early stage of the onset of late blight, downy mildew, bacterial wilt, etc., use mancozeb 500 times solution + new high lipid film to spray for prevention and control when the dew is dry on a sunny day. Sprinkle lime or disinfect the roots with 0.5% formalin solution in and around the diseased caves, and then spray 2000 times of agricultural streptomycin + new high-fat film for prevention and treatment. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Fingerprint Padlock,Bluetooth Padlock,Fingerprint Front Door Lock,Fingerprint Smart Lock Kerai (Foshan) Technology Co., Ltd. , https://www.cratlock.com