According to reports, during the production management of greenhouse vegetables after the snow, it is necessary to cover the mane grasshoppers, cover grasshoppers and remove the snow immediately after the snow stops. Snowfall at night, and timely snow sweeping after the snow stopped on the second day to keep the cover dry, and promptly peeling off the cover to see the vegetables in the shed. After the continuous cloudy snow weather suddenly cleared, after removing the cover, we must pay attention to observation of seedling changes in the shed and find wilting. Immediately cover it with a bristle, recover it and then uncover it. Wilt and cover it again, so repeated, through 2- In 3 days, you can switch to normal management;
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