Prevention and Control of Potato from sowing to sowing time in greenhouse
1. Adjust the planting structure and rational crop rotation. Avoid continuous cropping with melons, eggplant fruits and vegetables, but with cruciferous cabbage and Chinese cabbage; green onions and garlic of Liliaceae for more than three years.
two。 Disease resistant varieties were selected. Such as Haijiao 2, Zhongjiao 4, Zhongjiao 5, Zhongjiao 6, Zhongjiao 7, Zhongjiao 8, Sweet Pepper 3, Sweet Pepper 4, Sweet Pepper 6, Juice Pepper 1, Jujiao 9, Fengjiao 1, Dujiao 1, Jinjiao 8, precocious 1 and so on.
3. Disinfect the seedbed. 50% carbendazim 1 ∶ 100g poisonous soil 1.2kg / m2 or 75% methyl topiramate 10g / m2 plus a small amount of soil mixed evenly, or Luheng 1 1 g to water 300x per square meter, evenly sprayed in the bed before or after sowing, or 1 g of Luheng 1 to sifted fine soil 15-20kg, mixed into poisonous soil, the poisonous soil of 1jump 3 was scattered in the seedbed, and the remaining 23 poisonous soil was sown.
4. Mix seeds with potions. Every 1 kg of seeds are mixed with 1-1.5 grams of Luheng No. 1 and 3-4 grams of 50% Fumishuang wettable powder or 8-10 grams of Luheng 3, and then sowed.
5. Soak the seeds with medicine. Soak the seeds in 10% trisodium phosphate solution for 30 minutes or 100 times formalin for 30 minutes or 50% carbendazim 500 times solution for 2 hours.
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From sowing to planting period of potato in greenhouse
1. Select 75% methyl topiramate 600,800 times or 75% chlorothalonil 1000 times to control blight; 72.2% Pulike water agent 5-7.5ml / m2 seedling bed for the prevention and treatment of stunting, early blight, anthracnose and so on. two。 In the seedbed period, two bags of chili powder or 500-800 times of Ke Xianling or 400 times of virus a wettable powder are sprayed every 667 square meters to prevent and control virus. Spray every 7 days, 3 times in a row. Can get good results.
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The benefit of "three early and three skillful" planting potatoes in spring is high
Three early morning: select early-maturing varieties. Practice has proved that the selection of high-yield, high-quality and virus-free potato varieties with a growth period of less than 70 days (from emergence to harvest) is the key to realize high yield, stable yield and high quality scale of spring potato. At present, the ideal varieties are Holland 7, Holland 15, Zhengshu 6 and so on. Early sprouting. The use of sunny beds for early germination before sowing can make potato seedlings emerge early and well, complete seedlings, strong seedlings, conducive to early emergence and early fruiting of potatoes, which is an important measure to increase production. The key points of budding technology are: before sowing
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