Cultivating earth. Before the soil is frozen, the soil in the furrows is cultured in the roots in combination with the cultivator. This will not only loosen the soil but also enhance the vitality of the root system. The cultivator depth should be 7-10 cm. Qinggou drains and raises the temperature. Rainy weather, high humidity in the field, coupled with insufficient light, is extremely detrimental to the growth and development of vegetables. During this period, the trenches, gutters and gutters should be cleared to raise the surface of the car and enhance the air permeability of the car, thereby increasing the ground temperature. This will not only be beneficial to winter cold in the vegetable field, but also beneficial to flood prevention in the vegetable field in the spring. Smoke or wind barriers. Before the advent of frost, it was used to ignite fumes after accumulation of weeds, straw, dead branches, fallen leaves, etc. in the upwind, which can effectively disperse the cold current and protect the vegetables from freezing damage. In addition, in the north of vegetable plots, straws and other materials are used to make a wind barrier of 1 to 1.5 meters high to prevent cold winds from directly invading vegetables and reducing frost damage. In addition, in the 3 to 4 days before the onset of the cold current, sunny day sprayed 30 to 40 times of oil suppressant on vegetable plants, can reduce the transpiration of the leaves, protect the body temperature.
Electronic Ballast For Cold Cathode UV Lamp
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