Water, gas and temperature are the necessary conditions for flower growth. In summer, the high temperature brings great harm to the growth of flowers. When the temperature is as high as 38°C, many flowers will have poor growth, which is manifested by accelerated respiration, reduced photosynthesis, and impeded nutrient running. If the temperature is higher than its heat resistance, it will tend to die, even if it is a flower that is accustomed to growing in the tropics, and if it is not taken care of, it is difficult to grow normally. To this end, the following management measures are proposed:
1, shading: The flowers in greenhouses or plastic greenhouses should use shade nets to shade, in order to prevent the direct sunlight and burned flowers in the hot sun, in open field cultivation also try to shade.
2. Sprinkle water: Sprinkle water sooner or later to increase the humidity and lower the temperature. If sprinkler or drip irrigation facilities work better, they can usually be cooled by 2~5°C after spraying.
3, ground ventilation: increase ventilation equipment in the greenhouse or greenhouse. In order to introduce fresh air, eliminate indoor hot gases and harmful gases.
4, disease prevention and pest control: wind and rain, timely prevention of pests and diseases.
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