Light Deprivation Roof Vents Greenhouse For Vegetables Flowers
Product Description
The main types of multi-span film greenhouses are double-story film
greenhouses and single-story film greenhouses. The two main
characteristics of multi-span film greenhouses are simple
structures and flexible forms. Anti-aging performance, bearing
capacity of the main structure of the greenhouse, etc. The
maintenance framework structure of multi-span thin film greenhouses
needs regular maintenance. The covering materials should improve
anti-cracking and anti-aging ability, can resist wind and sun, and
achieve the purpose of light transmission and heat preservation.
Therefore, it is necessary to take good reinforcement measures and
repair any leaks in time.
Professional Design
1. Light intensity
The sunlight in the greenhouse is obviously lower than that in the
open field. Generally, the indoor high average illumination does
not exceed 80% of natural light.
2. Temperature change
The temperature in the greenhouse is higher than that of the open
field all year round, but the number of winters in the greenhouse
is significantly reduced. Solar greenhouses can produce sparse
vegetables in all seasons.
3. Air humidity
The absolute humidity and relative humidity of the air in a solar
greenhouse are generally greater than the open field.
4. Change of gas
Ventilation should be carried out in a warm room in a timely
manner. The CO2 concentration in the greenhouse changes abnormally
significantly.
5. Soil environment
The temperature of the soil in the greenhouse is high, the humidity
is high, and the microorganism activity in the soil is vigorous.
Therefore, the conversion of soil nutrients and the decomposition
of organic matter in the greenhouse are very fast.
Question
1. Color difference problem: Because the film produced by each
machine is not the same size, each time the film is produced is not
the same batch, but we guarantee that it is authentic and the
quality is definitely the same, please rest assured to buy.
2. Size problem: Please rest assured that we will cut strictly
according to the size given by our customers. It is cut by hand
only.
