Drawing curtain wholesale

Winter colds bring freezing damage to greenhouse vegetables. When the freezing damage is serious, the vegetables will die. It is a method to cover the grass cover early, but the wholesale manufacturer of straw curtains reminds you to pay attention to the following points:

First, scientific construction of greenhouses

Different latitudes in different regions The height of the greenhouse and the inclination angle of the shed film and the ground are also different. The right height and angle help to adjust the temperature inside the shed. If necessary, a layer of film can be covered on the straw curtain. One is to prevent the cold wind from invading, and the other is to prevent rain and snow from wetting the straw curtain and reduce the heat dissipation caused by evaporation. Also clean the surface of the shed film frequently to increase the light transmittance. Or double-layer film covering, the air in the middle layer can also resist the cold current, and obviously increase the temperature inside the shed.

Second, maintain the soil moisture in the shed

Keep the soil moisture in the shed to increase the temperature inside the shed, because the specific heat capacity of the water is the largest, the soil is certain Humidity can effectively prevent cold and keep warm.

Third, the crops are different and the required growth temperature is different

Select the appropriate crop sowing date and planting period. Special weather measures should be taken early to prevent vegetables from freezing.