It’s cold! Don't let the fruit "snap" face

Reduce condensation. The dew on the fruit surface is an important cause of molting. Many greenhouses do not cover the membrane. The water evaporated at night is mostly condensed on the surface of fruits and leaves. After dawn, the surface temperature of the fruit is uneven with the rapid increase of temperature in the shed. , causing chapped. In order to reduce condensation, it is critical to reduce the humidity in the shed. In the case of no mulch film coverage, it is recommended to use the method of laying straw and rice husk in the operation line to reduce soil evaporation and absorb water vapor in the air to reduce condensation on the surface of the fruit.

Reasonable windproof. When the surface of the fruit is dewed, the sudden release of the wind will inevitably lead to the splitting of the fruit, so the wind will be released in a divided manner, and the moisture in the shed will be released without causing a sudden drop in the temperature inside the shed. At the same time, in order to avoid the cold wind blowing the fruit surface, it is necessary to install a windshield under the air outlet. Under certain conditions, an insect net with a low mesh number can be set on the air outlet to break up the air entering the shed, and the cold wind can be effectively avoided. blow.

Balance watering. The control of the amount of watering is also a measure to prevent cracking. Due to the difference in soil quality and the illuminance in the shed, watering cannot be done according to the number of days, and should be based on soil moisture.

Spray the foliage. Some foliar fertilizers have certain effects on preventing fruit splitting. For example, functional foliar fertilizers containing amino acids and enzymes can promote cell and leaf cell resistance and flexibility. Boron can avoid the formation of cork on the surface of fruits. .

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