Under today's climate conditions, continuous high temperatures often occur, which brings considerable challenges to greenhouse cultivation. So, how can the greenhouse be effectively cooled under high temperatures?
First of all, ventilation is an extremely important measure. Open the vents reasonably to allow air to flow freely, so that the heat in the greenhouse can be taken away in time and the air can be kept fresh.
Shading measures are also essential. By using tools such as shading nets, the sunlight radiation entering the greenhouse can be greatly reduced, and the temperature in the greenhouse can be lowered.
The wet curtain-fan cooling system is an effective method. It can significantly reduce the air temperature and create a relatively cool environment for the greenhouse by using the principle of water evaporation and heat absorption.
Spray cooling is also feasible. Spray into the greenhouse and use water vapor evaporation to absorb heat, thereby achieving the effect of cooling.
Roof spraying is also a way to spray water on the top of the greenhouse and use water evaporation to take away heat.
Increasing the number of irrigation times is also a key link. Watering more appropriately to allow water to evaporate and absorb heat will help reduce the temperature.
Laying reflective film can reduce the heat absorbed by the ground and further improve the temperature conditions in the greenhouse.
It is also important to adjust the planting layout to avoid overcrowding of plants to improve ventilation and light transmission conditions, so that heat can be dissipated more easily.
In addition, it is necessary to pay attention to choosing the right time for operations, and try to carry out field management and other operations in the morning and evening when the temperature is lower, so as to avoid increasing the stuffiness in the greenhouse during high temperature periods.
In short, through the comprehensive use of the above methods, the greenhouse can still maintain a relatively suitable temperature in continuous high temperature weather, provide a good environment for the growth of crops, and ensure the smooth progress of agricultural production.
