There are three main ways to apply horticultural ground cloth in greenhouses: overall ground protection, local ground protection, and seedbed base layer.
Overall ground protection
Adopting the greenhouse floor covering method, it is applied to soilless cultivation of vegetables and flowers, potted crops, etc. The greenhouse floor is directly laid with ground cloth without the need for additional construction. The placement of crops can be accurately operated according to the marking lines on the ground cloth. Sometimes growers also lay a layer of fine sand about 20mm on the surface of the ground cloth to protect it or increase the amount of water attached to the surface of the ground cloth
Local ground protection
This usage is mainly used in conjunction with the seedbed to prevent the growth of weeds and diseases in the lower part of the seedbed. Laying ground cloth under the seedbed is currently one of the most common uses in greenhouses in China. This method can also reduce water accumulation in the lower part of the seedbed (especially when irrigating the entire seedbed), thereby regulating the humidity inside the greenhouse
Seedling bed base
The ground cloth can also be directly laid on the surface of the seedbed As a support layer for the bed surface, it simplifies the support structure of the bed surface and achieves the purpose of being suitable for various cultivation containers