Early spring vegetables should be kept in time
2018-08-08 14:01:55
In the rainy and snowy weather, clean the snow on the seedling shed film in time to prevent the seedlings from freezing. All local vegetable farmers should pay close attention to the snow situation and pay attention to the weather forecast. If it snows at night, it should be cleaned up in time. In the case of icing and freezing weather, the large and small sheds are tightly insulated, and straw is covered in the shed and on both sides of the shed, and straw drapes or shade nets are added to the shed.
Strengthen the temperature and humidity management of nursery sheds. When the weather temperature rises, the nursery shed will be opened and ventilated in time at about 9:00 am, and then the shed will be opened. Do not let the shed shed after the temperature rises. Otherwise, the seedlings will be dehydrated and dead. At the time, the size of the shed will be tightly closed; the shed will be ventilated in the rainy day, the indoor shed will be opened, and the shed door will be closed in the afternoon. In the frost season, the dry seedbed can be properly watered in the morning to keep the seedbed moist, reduce the freezing damage, and can be combined with anti-freezing anti-freezing agent, such as "481" 4500 times liquid, "root more strong" 1200 times liquid spray Etc. to improve cold resistance.
Seedlings that have suffered from freezing damage should be cleared of frozen residues on sunny days, and attention should be paid to the occurrence and prevention of gray mold and early blight of solanaceous vegetables. It can be sprayed with 50% chlorhexidine 1000 times, 15% green Jiabao 1000 times, 28% gray mold gram 500~1000 times. At the same time, combined with prevention and treatment of viral diseases and mites, virus disease can be used to suppress stars and bacteria. Etc., aphids can be controlled with imidacloprid. For seedlings that have not been frozen, they should also catch the sunny day and apply them once in the above way. Continuous rainy weather, can not be applied, can use 20% hundred rot fumigant, according to the greenhouse space 0.2 ~ 0.3 g / cubic meter for the amount of smoke, pay attention to weak seedlings and can not be used in the shed. The melon seedlings can be sown in a hot bed of hot materials. Where necessary, electric light, electric furnace, geothermal line, etc. can be used for artificial lightening and warming.
Strengthen the temperature and humidity management of nursery sheds. When the weather temperature rises, the nursery shed will be opened and ventilated in time at about 9:00 am, and then the shed will be opened. Do not let the shed shed after the temperature rises. Otherwise, the seedlings will be dehydrated and dead. At the time, the size of the shed will be tightly closed; the shed will be ventilated in the rainy day, the indoor shed will be opened, and the shed door will be closed in the afternoon. In the frost season, the dry seedbed can be properly watered in the morning to keep the seedbed moist, reduce the freezing damage, and can be combined with anti-freezing anti-freezing agent, such as "481" 4500 times liquid, "root more strong" 1200 times liquid spray Etc. to improve cold resistance.
Seedlings that have suffered from freezing damage should be cleared of frozen residues on sunny days, and attention should be paid to the occurrence and prevention of gray mold and early blight of solanaceous vegetables. It can be sprayed with 50% chlorhexidine 1000 times, 15% green Jiabao 1000 times, 28% gray mold gram 500~1000 times. At the same time, combined with prevention and treatment of viral diseases and mites, virus disease can be used to suppress stars and bacteria. Etc., aphids can be controlled with imidacloprid. For seedlings that have not been frozen, they should also catch the sunny day and apply them once in the above way. Continuous rainy weather, can not be applied, can use 20% hundred rot fumigant, according to the greenhouse space 0.2 ~ 0.3 g / cubic meter for the amount of smoke, pay attention to weak seedlings and can not be used in the shed. The melon seedlings can be sown in a hot bed of hot materials. Where necessary, electric light, electric furnace, geothermal line, etc. can be used for artificial lightening and warming.
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