Strengthen the coverage, warm and antifreeze before the onset of low temperature, covering the open field with rice straw, sunshade net, plastic film and other objects to block frost, increase ground temperature and prevent freezing damage. Greenhouse vegetables can be buckled with small arches, covered with film at night, and covered with grasshoppers. The skirt of the greenhouse is covered with a plastic film as an apron to reduce the cold air at the bottom, and at the same time, it is necessary to block all gaps and minimize heat dissipation. A double-layer shade net can be added to the north of the greenhouse to form a windbreak and reduce the occurrence of frost damage. After the sun shines (8 to 9 am), the cover is removed in time to allow the greenhouse to be fully warmed by light.
Fertilize the soil and increase the soil temperature. Select warm fertilizers such as cow dung, pig manure and compost during the sunny day in the vegetable rhizosphere. This will increase the soil temperature by 2-3°C. Combined with cultivator soil before freezing, the depth of cultivator is 7 to 10 cm.
In order to prevent flooding, low-lying vegetable fields should be ensured by clear channels and gullies. After the rain and snow days, the snow on the sheds and sheds should be cleared in time to clear the ditch and remove accumulated water to prevent the snow from melting to reduce the temperature of the shed and increase the vitality of the roots.
Control nitrogen and dust, improve the ability of plants to resist cold. The vegetable seedling stage can not be partial nitrogen fertilizer to prevent the growth of young plants, poor cold resistance. You can spray 0.2% potassium dihydrogen phosphate solution 2 to 3 times. Before the advent of low temperatures, spreading a layer of turfgrass in vegetable fields can prevent cold and increase frost resistance.
Cut off dead branches and timely prevent disease to timely cut frozen leaves. After the vegetables are frozen, they are prone to diseases and can be sterilized with a fumigant in the shed. In case of rainy weather, it is necessary to open and circulate the air around the noon, reduce the humidity in the shed, and reduce the occurrence of diseases.
Dried shiitake mushrooms are the fruiting bodies of the fungus Phytophyta fungus, and belong to the Basidiomycetes Agaricaceae, which is one of the world's famous edible fungi. Dried shiitake mushrooms contain a unique aroma substance, shiitake mushroom essence, which forms a unique mushroom fragrance. Do not eat dried mushrooms Dried mushrooms can not be eaten with pigeon meat, it will cause hemorrhoids. Dried shiitake mushrooms cannot be eaten with quail and will have black spots. Dried shiitake mushrooms cannot be eaten with pheasants and can cause hemorrhoids. Dried shiitake mushrooms cannot be eaten with river crabs, which will easily induce stones.
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