Cultivating earth. In combination with cultivator before freezing, the soil is cultured on the root side, which can loosen the soil, protect the root system, and 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, are detrimental to the growth and development of vegetables. At this time, the management focuses on freezing and warmth, clearing trenches, clearing the trenches, gutters, gutters, and lifting away from the car, enhancing the air permeability of the car and increasing the ground temperature. It is not only beneficial to the winter's antifreeze and cold resistance, but also beneficial to the coming year. Anti-mite moisture in the spring.
More organic fertilizer, less nitrogen fertilizer. Spraying 0.2% to 0.3% potassium dihydrogen phosphate solution 1 to 2 times before low temperature can enhance the cold resistance of vegetables. Spraying 400 to 500 kilograms of thin human and animal manure water per acre can reduce soil freezing and improve the ability of vegetable roots to resist cold.
Smoke or wind barriers. Before the advent of frost, the accumulation of weeds, straw, litter and other accumulations of smoke in the upwind can effectively disperse the cold currents and protect the vegetables from freezing damage. In addition, 1-1.5-meter-high windshield barriers should be made on the north side of vegetable plots for straw, etc. to prevent cold winds from directly invading vegetables and reducing freezing damage.
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