In winter, the humidity in the shed is high, and it is easy to induce leggy and rotten roots in the vegetables. Care should be taken to avoid them during the production process.

The humidity in the heat preservation shelf will decrease as the temperature rises. The grasshopper should be covered in time, and the water droplets attached to the inner surface of the greenhouse film should be wiped off. When the low temperature and high humidity environment occurs in low temperature sheds, assistive measures such as the use of a stove can be used to increase the temperature of the shed and reduce the relative humidity in the shed.

Reasonable watering should be poured with small water or gutters, not flooding or flooding. Planting water and easing seedlings must be thoroughly irrigated, and the water supply will be sufficient during the result period. In other periods, watering is generally not required.

Enhancing ventilation is the main measure to eliminate humidity. It should be carried out at high temperatures around noon. The main winds and waist winds should be used, and foot winds should not be placed in order to prevent the temperature of the greenhouses from being too low and the “sweeping winds” to hurt the seedlings.

Covering and cultivating the mulch on the surface of the mulberry leaves and laying rice straw between the rows can reduce evaporation of soil moisture, reduce air humidity, and keep the soil moist and increase the temperature of the soil.

Select the drug shed indoor should use dust and smoke agents to prevent pests and diseases, such as the need for spraying control, should be selected sunny morning, and then combined with air release.

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