Shade Netting:
Shade netting is a type of material that is used to provide shade and control the amount of sunlight that enters a greenhouse or growing area. It is made of a mesh-like fabric that comes in various shading percentages, ranging from 30% to 90%. The primary purpose of shade netting is to reduce the intensity of sunlight and create a cooler and more balanced environment for plants.
Polyhouse:
On the other hand, a polyhouse, also known as a polytunnel or hoop house, is a structure made of a metal or PVC frame covered with a clear polyethylene film. Unlike shade netting, a polyhouse is designed to create a controlled environment for plants by trapping heat and maintaining higher temperatures. The clear polyethylene film allows sunlight to pass through, creating a greenhouse effect that promotes plant growth.
Now, let’s look at some key differences between shade netting and a polyhouse:
1. Light Transmission:
Shade netting reduces the amount of sunlight that reaches the plants by providing shade. It filters and diffuses the light, preventing sunburn and creating a more evenly distributed light environment. On the other hand, a polyhouse allows sunlight to pass through the clear polyethylene film, maximizing light transmission and creating a warmer environment.
2. Temperature Control:
Shade netting is primarily used to control the temperature in a greenhouse by reducing the intensity of sunlight. It helps to keep the temperature cooler, especially during hot summer months. In contrast, a polyhouse is designed to trap heat and maintain higher temperatures. It is ideal for extending the growing season and providing a warmer environment for plants that require it.
3. Protection:
Shade netting provides protection against UV rays, preventing damage to plants caused by excessive exposure. It also acts as a physical barrier, keeping pests and insects at bay. A polyhouse, with its enclosed structure, offers greater protection against external elements such as wind, rain, and hail. It provides a more sheltered environment for plants, reducing the risk of damage.
4. Versatility:
Shade netting comes in different shading percentages, allowing for customization based on the specific needs of different plants. It offers flexibility in adjusting the amount of shade throughout the day or as seasons change. On the other hand, a polyhouse provides a consistent environment with high light transmission and controlled temperature, suitable for a wide range of crops.
Summary
Shade netting and a polyhouse have some key differences. Shade netting is a mesh-like fabric that provides shade and controls sunlight intensity, while a polyhouse is a structure covered with clear polyethylene film that creates a controlled environment by trapping heat and maximizing light transmission. Shade netting helps regulate temperature and offers protection against UV rays and pests, while a polyhouse provides a warmer environment and greater overall protection. Both options have their unique advantages and can be used based on specific plant requirements.