Why should greenhouses use shade nets?
Why should greenhouses use shade nets?
Vegetables and crops require both sunlight and shade at different times.
1) Shading effect:The sunshade net decreases the amount of light entering the greenhouse; the better the shading, the higher the density requirements, and for the same specification, black shading performs better than silver gray shading.
2) Cooling effect: The sunshade net's covering lowers the temperature within the shed, and the soil's surface and tillage layer's cooling temperature are suitable. At 10 a.m. to 2 p.m., the temperature in the greenhouse's upper section is 37 to 40 degrees Celsius higher, while the temperature around the surface plant is 22 to 26 degrees Celsius and the soil temperature is between 18 and 22 degrees Celsius, which is ideal for crop growth.
3) Protection against torrential rain: The evaporation in the shed is reduced, the soil moisture content is higher than the open field, and the topsoil is moist. Because the sunshade net can break down the rainstorm into fine rain, the leaf is not damaged by heavy rain, and the soil is not easy to be knotted, the void is large, and the ventilation is good.
