How to reduce humidity in a greenhouse Thank you

After the greenhouse and greenhouse are insulated, the relative humidity of the indoor air is very high, and the relative humidity can often reach 100% before the wind is released in the morning, especially after watering. High relative humidity in the air can hinder anther cracking and pollen germination, and according to research, humidity is more affected than low temperatures. Excessive relative humidity of the air during the flowering and fruiting period induces various diseases, the most prominent of which is gray mold, which is easy to cause a large number of rotten fruits.

Reducing the relative humidity of the air in greenhouses and greenhouses requires two aspects: first, to reduce the evaporation of water in the soil as much as possible. The specific method is to cover the plastic film with high furrows.

Mulching can not only reduce soil moisture evaporation, but also reduce indoor humidity; It can also prevent the occurrence of weeds, which is conducive to increasing ground temperature and promoting fertilizer decomposition. The mulching period should be 10 to 15 days after insulation. After covering with black mulch, immediately break the film, pull out the seedlings, and the hole should not be too large.

After mulching, the ditch should be covered with waste mulch, and straw or wheat straw can also be covered, which will greatly reduce soil moisture evaporation. Method 2, dark irrigation or drip irrigation under the plastic film. In order to alleviate the impact of watering on indoor humidity, dark irrigation under plastic film is used, which can save water and reduce indoor humidity.

Where conditions permit, a drip irrigation system can be configured, and the drip irrigation pipe is laid in the middle of the high furrow, and the film is covered together, and this technology has been promoted in the main strawberry producing areas. The second is to strengthen moisture drainage. Under normal circumstances, the air should be released around noon every day, and the size and time of the air outlet should be flexibly controlled, and the indoor temperature can not be affected by the dehumidification, especially in the cold winter, cloudy and snowy days, even cloudy days, the indoor humidity is large, and the humidity needs to be discharged, but at this time, it is more necessary to keep warm, and the solution is only to release the wind at noon for a short time.

The chimney type is used to ventilate, the dehumidification effect is good, and the cooling is not obvious. In order to improve the moisture removal effect, the location of the air vent is very important, and it should be located at the higher part of the front roof.

Improve the irrigation method: the use of drip irrigation or dark irrigation under the film instead of the traditional flood irrigation, can reduce the relative humidity of the air in the shed by more than 10.

Mulch film (bottom of the shed) + anti-drip film (on the shed) + activated carbon (moisture absorption).

Summary. Ventilation Ventilation is a simple and effective way to adjust the humidity environment in a greenhouse. The humidity in the greenhouse is generally higher than that outside, and the air with relatively low humidity introduced through ventilation can dilute the indoor air.

Heating In the case of a certain humidity content of indoor air, increasing the temperature of the greenhouse through heating can naturally reduce the relative indoor air.

Improving irrigation methods The use of water-saving irrigation measures such as drip irrigation and micro-sprinkler irrigation in greenhouses can reduce the water collection on the ground and significantly reduce the ground.

Hygroscopic The use of hygroscopic materials such as lithium oxide to absorb moisture in the air can reduce the moisture content in the air, thereby reducing the relative humidity of the air.

1.Ventilation Ventilation is a simple and effective way to adjust the humidity environment in a greenhouse. The humidity in the greenhouse is generally higher than that outside, and the air with relatively low humidity introduced through ventilation can dilute the indoor air.

2.Heating In the case of the humidity content of the indoor air, increasing the temperature of the greenhouse through heating can naturally reduce the indoor air relativity. 3.

Improving irrigation methods The use of water-saving irrigation measures such as drip irrigation and micro-sprinkler irrigation in greenhouses can reduce the water collection on the ground and significantly reduce the ground. 4.Hygroscopic The use of hygroscopic materials such as lithium oxide to absorb moisture in the air can reduce the moisture content in the air, thereby reducing the relative humidity of the air.

Summary. Hello dear, it's a pleasure to serve you! If the humidity in the greenhouse is too large, it should be reduced in this way, and the spraying of dripping agent can reduce the amount of water accumulation on the surface of the film or cover the mulch film The mulch film is not breathable, and can reduce the number of ground water evaporation and irrigation, so as to achieve the purpose of reducing the air humidity in the shed.

How to reduce humidity when the humidity of the greenhouse is high.

Hello dear, it's a pleasure to serve you! If the humidity in the greenhouse is too large, it should be reduced in this way, and the spraying of dripping agent can reduce the amount of water accumulation on the surface of the film or cover the mulch film The mulch film is not breathable, and it can reduce the number of ground water evaporation and irrigation deficits, so as to achieve the purpose of reducing the humidity of the air in the shed. Thank you for your patience, the above is all my reply, I hope you can help.

You can choose the non-drip film when you choose the greenhouse film, this film has good light transmittance, will not drip water everywhere, and can greatly reduce the humidity in the shed.

Our greenhouse is a cement floor, and the main purpose is to make cement products dry quickly.

Now the humidity inside is too much, how can the humidity come down.

Ventilation and dehumidification methods can be chosen. During the day, the best time for ventilation and dehumidification is noon, because the humidity difference between the inside and outside of the shed during this time is large, and the moisture is easier to discharge. In other periods, it is also necessary to make clever drafts on the premise of ensuring temperature requirements, and extend the ventilation time as much as possible.

In addition, special filial piety should be paid attention to 2-3 days after watering the greenhouse, 1-2 days after foliar fertilizer (medicine), rainy (snow) days and sunset before and after strengthening ventilation and moisture drainage.

Sprinkle some straw, wheat straw, grass ash or fine dry soil, and you can also pile up hygroscopic materials such as quicklime in the free space in the shed to absorb moisture.