What shading grid to choose for greenhouses with cucumbers and tomatoes
Shading nets for shading plants: what is on sale
Unlike covering material, which is used in open beds and is attached to the arcs, the grid is fixed on the roof of the greenhouse. It is much more practical - tightly fortified net does not break the wind, it is not damaged by birds and does not suffer from frequent precipitation.
The main task of covering material is to reduce the intensity of solar radiation. The nets disperse direct sunlight, providing uniform illumination and protecting delicate plants from burns. At the same time, they reduce the temperature inside the greenhouse, creating a comfortable microclimate for plants that prefer moderate heat. The use of nets will help reduce the incidence of plants and protect planting against insect pests.
The most durable and durable material for covering mesh - polycarbonate.The product can be used for several years in a row, the grid does not lose its properties, does not tear and does not fade. Polycarbonate differs in the increased density, at the same time it is rather flexible and elastic.
A slightly less durable option - polymer mesh. It is much more accessible, with proper operation will last a long time. The cheapest nets are made from fabric, but they are rarely used for longer than one season. Fragile material suffers from birds and weather.
Grids are distinguished by the degree of shading. The choice depends on the climatic conditions of a particular region. In areas with long hot summers, a net of increased opacity is needed - at least 60%. Lighter options will not provide the plants in the greenhouse with the desired microclimate. In the regions located in central Russia, the grid with 30% shading is more often used.
The best options for greenhouses with cucumbers and tomatoes
Polycarbonate greenhouses partially disperse the sun's rays, so you can use a medium-density grid for them with shading of no more than 30%. Greenhouses with glass inserts need a more dense covering material.
A very important point - the color of the grid.Red speeds fruit ripening and shortens the growing season. This material is suitable for greenhouses with tomatoes. Early varieties quickly form the ovary, the first tomatoes can be collected in early July. The grid stimulates the early fruiting of late-ripening varieties that mature by the end of the season.
When using red grids, the plant can increase the number of shoots. Determinant varieties of tomatoes will have to be planted more often, removing unnecessary growth.
For cucumber greenhouses, it is better to use a blue or green grid. Such variants provide even diffused illumination, stimulate the growth of new shoots and accelerate the formation of ovaries. Green mesh well protects growing cucumbers from mold, gray rot and other common ailments.
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