In addition, the surface of the film accumulated condensate, which is also harmful to plantings, causing fungal disease. Currently, the technology of production, allowing to produce products of various structures with reinforcing inclusions, with additives, light stabilizers and substances svetopreobrazovateley, as well as pigments. With this comes on the market a variety of types of films, for example, a particularly clear for greenhouses or black mulch. Can note the light-stabilized high-strength materials, or, conversely, for grafting cuttings fotodestruktiruemye, collapsing after the wound site of implantation. Danish manufacturers have mastered the production of reinforced polyethylene film. Reinforcing component in it is a mesh fiberglass mesh around 1010 mm, fused in a plastic base. With this film has great strength (withstands at least three seasons of operation) and is stable for strong gusts of wind. It is a valuable asset that a random break is not spreading further polyethylene single cell.
A variety of such material – porous film, in every cell which has microscopic holes, leaking air and water. In greenhouses, hothouses, sheltered by it, the plants are free to "breathe". Release films reinforced and mastered by domestic manufacturers. A few years ago in the Russian market a new kind of domestic light-transforming plastic film ("Biosvet", "vintage"). Its members have specific colored substances (phosphors) that serve a filter for sunlight. Of solar radiation they emit and allows only a certain range of waves that regulate metabolic processes in plant development, intensify the photosynthesis. Plants absorb more than 50% of visible light, increase yield and fruit quality, significantly shortened the growing season.