How to dehumidify the greenhouse
If the humidity in the greenhouse is high, it can cause serious disease. The principle of humidity control is "head wet and dry." To reduce the humidity in the greenhouse, the following measures can be taken. Ventilation. Excluding moisture and replacing it with dry air outside, this is the simplest method of dehumidification, but the relationship between insulation and dehumidification must be handled. Cover with no drip film. The non-drip film can overcome the disadvantages of a large number of water droplets adhering to the inside of the membrane, significantly reducing the humidity, and the light transmission performance is good, which is conducive to increasing the temperature and humidity. Film cover. Film cover can greatly reduce ground water evaporation, and can reduce the number of irrigation, thereby reducing air humidity. Drip or infiltration. In addition to drip irrigation and infiltration, it has the advantages of saving water, labor, fertilizer, and medicine, preventing soil compaction, and reducing the temperature of the soil. What's more important is that it can effectively reduce the increase in air humidity caused by watering. Drip irrigation under the membrane. Drip irrigation under the membrane combines the common advantages of mulching and drip irrigation and is an effective measure to reduce the humidity in the greenhouse. The method is to raise the ridge from the ground, then put the drip irrigation pipe in the center of the high ridge, and then cover the mulch. Dust method and smog method. When the medicine must be applied in the greenhouse, if the conventional spraying method is used, the humidity in the greenhouse will increase, which is unfavorable for the control of diseases. The use of dust and smog method can avoid the above drawbacks. High temperature humidity. After exposing in the morning, under normal circumstances, do not let go of the wind. Under the premise of not harming the cultivated crops, the temperature should be increased as much as possible. As the temperature rises, the humidity will gradually decrease. When the temperature rises to the highest value of the suitable temperature required for the cultivation of the crop, exhalation begins. Cultivated wet. When sunny days are used, the temperature of the greenhouse is high, and the surface of the earth is shallow and the evaporation of surface water is accelerated.
Grow
lighting can be one of the most essential factors to successful plant
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eight hours of sun each day. Most crops benefit from supplemental lighting,
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