In the cold winter, for the farmers, in addition to the human body to do a good job of cold and warmth, the crops must also be cold and antifreeze to prevent the adverse effects of low temperature frost. Agricultural experts give a few tips:
For different crops and different growth periods, it is necessary to strengthen the management of fertilizer and water in the field, promote crop growth and improve cold resistance.
For open crops, timely clearing the ditches for drainage, reducing the groundwater level can effectively prevent freezing damage, and at the same time combined with clearing ditch, the soil will be cultivated in the roots of the crops to play the role of grass warming and seedling protection.
For the greenhouse facilities, measures such as covering straw curtains, non-woven fabrics, shade nets or multi-layer coverings can be adopted for heat preservation, and ventilation at the same time can be used. The general guards of spraying trees can maintain the temperature of the plants themselves and prevent the occurrence of diseases. Spray a new high-fat film on the vegetable seedbed and nursery field to form a polymer film and cover it with a small arch shed film or straw.
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