Strategies and measures to prevent continuous high temperature in greenhouses

As an important facility of modern agriculture, greenhouses provide a good growing environment for crops. However, in the high temperature season, the temperature in the greenhouse is often too high, affecting the normal growth and yield of crops. Therefore, taking effective measures to prevent high temperature is very important to ensure the healthy growth of crops.

Effect of high temperature in greenhouses

The impact of high temperature on crops in greenhouses is mainly manifested in the following aspects:

Inhibit crop growth: High temperatures will inhibit photosynthesis and respiration of crops, reducing the growth rate.

Increase the risk of diseases and pests: The high temperature environment easily leads to the breeding and spread of diseases and pests, affecting the health of crops.

Reduced yield and quality: High temperatures will affect the fruit development and quality of crops, reducing yield and market competitiveness.

High temperature protection strategy of greenhouse

In order to effectively prevent the high temperature in the greenhouse, the following strategies can be adopted:

Reasonable choice of greenhouse structure: Choose a greenhouse structure with good thermal insulation performance, such as a double-glazed greenhouse or a greenhouse covered with a sunshade net.

Reasonably arrange the planting time of crops: avoid the high temperature period for planting, and choose the time period of low temperature in the morning and evening for operation.

Strengthen ventilation and cooling: Increase the number of vents and install fans to strengthen ventilation and reduce the temperature in the greenhouse.

Use a sunshade net: Cover the top or all around the greenhouse with a sunshade net to reduce the heating effect of solar radiation on the greenhouse.

Using irrigation cooling: using irrigation methods such as spray irrigation and drip irrigation to reduce the temperature in the greenhouse through water evaporation.

Greenhouse concrete measures to prevent high temperature

Greenhouse structure improvement: The use of good thermal insulation materials to build the greenhouse, such as double insulating glass, PC board, etc. At the same time, vents are set on the top and around the greenhouse to increase the ventilation area.

Use of sunshade net: according to the type of crop and growth stage, choose the appropriate sunshade net to cover the top or around the greenhouse. When the solar radiation is strong, the sunshade net is deployed in time to reduce the temperature in the greenhouse.

Ventilation equipment installation: Install ventilation equipment such as fans and water curtains inside the greenhouse to enhance the ventilation effect. At the same time, the operation time and wind speed of the ventilation equipment are adjusted according to the weather conditions and crop needs.

Irrigation system optimization: water-saving irrigation methods such as drip irrigation and sprinkler irrigation are adopted to reduce water evaporation and waste. Increase irrigation frequency and water volume during high temperature periods to reduce the temperature in the greenhouse through water evaporation.

Monitoring and control system application: Installation of environmental monitoring equipment such as temperature and humidity, real-time monitoring of environmental parameters in the greenhouse. Through the control system, the operating state of ventilation equipment, sunshade net and other equipment is automatically adjusted to realize the intelligent control of the greenhouse environment.

High temperature protection in greenhouses is an important measure to ensure the healthy growth of crops and increase yield. By choosing suitable greenhouse structure, arranging crop planting time reasonably, strengthening ventilation and cooling, using sunshade net and using irrigation to cool down, the temperature in the greenhouse can be effectively reduced to provide a good growing environment for crops. At the same time, the monitoring and control system can realize the intelligent control of the greenhouse environment and improve the efficiency and precision of the greenhouse management.