At present, the weather is cloudy, sunny and changeable, and the humidity in the shed is high, which is not conducive to the growth of vegetables, but is conducive to the occurrence of diseases. Therefore, environmental regulation should be strengthened, and at the same time, focus should be placed on the prevention and treatment of gray mold and bacterial ulcers.
Reduce humidity in the shed
In order to reduce the humidity in the shed, when the temperature in the shed rises to 30 degrees Celsius on a sunny day, open a small opening for air for half an hour, then close the vent to keep the temperature in the shed at about 30 degrees Celsius, and then open a small opening for ventilation after half an hour. From 14:30 to 15:00, the temperature in the shed will drop to 23 degrees Celsius to 25 degrees Celsius, and the vents will be closed. When the temperature in the shed drops to about 20 degrees Celsius, open a small opening for ventilation for about 15 minutes, and then cover it with a quilt or grass thatch.
Temperature management
The weather is overcast, sunny and changeable, and the temperature adjustment should be flexible. The opening and closing of the tuyere and the pulling and setting of the insulation quilt should be adjusted reasonably. In low-light weather, if the temperature in the shed is too high, the respiration of the plant will increase, which will consume too much nutrients and affect the development of the fruit. Therefore, the temperature should be appropriately lowered, especially the night temperature should be kept between 13 degrees Celsius and 16 degrees Celsius to ensure that the organic nutrients synthesized by the leaves are given priority to the fruits. Then, when opening and closing the vents, and lowering the insulation quilt, the operating time should be appropriately changed in accordance with the insulation conditions of the respective sheds to ensure the appropriate shed temperature, especially the night temperature.
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