Glass greenhouse cultivation provides excellent cultivation conditions for many growers, allowing plants to grow in specific environments. The downside is that they do not have access to natural rainfall and require artificial irrigation. In fact, artificial irrigation also has certain advantages, which can be quantitatively controlled and has a wide range. Next, let's take a look at the sprinkling principle of glass greenhouses.
General principle - Do not sprinkle too much water. In winter and spring, the temperature is relatively low, and the transpiration of plants in glass greenhouses is slow. The water demand is relatively reduced, and it is necessary to sprinkle water less or at intervals. Irrigation or spraying methods should be used as much as possible. In the first two days after watering, the humidity inside the glass greenhouse is high and ventilation is required.
Water spraying time. Generally, watering should be done around noon in winter, as the temperature is relatively high and the side effects are minimal. Friends with conditions should try to choose well water to irrigate the land, with a smaller temperature difference and faster plant habits. Flexible watering. Here are three seven words to teach us: sprinkle water on sunny days, sprinkle less or no water on cloudy days, and avoid sprinkling water on snowy days. Spraying water according to this principle generally does not cause any problems.
This is because on sunny days, the temperature is high, water transpiration is fast, and it is prone to drought; When the weather changes from sunny to cloudy, the temperature decreases and water transpiration decreases. Therefore, the amount of water should be reduced with a long interval. Watering should be focused. In large glass greenhouses, the temperature of each part varies greatly, so the amount of water sprayed should be different. In the south of the greenhouse and near heat sources such as the stove, due to the high temperature, the amount of water transpiration will be large, so the amount of water sprayed should be appropriately larger; The temperature on the east, west, and north sides of the greenhouse is much lower, and the sunshine time is short. Therefore, it is necessary to reduce the amount of water sprayed as appropriate.
