Which technique can help regulate temperature in greenhouses aside from heaters?

The technique that can help regulate temperature in greenhouses, aside from using heaters, is the incorporation of shading materials and proper ventilation. Shading materials reduce the amount of direct sunlight entering the greenhouse, which can significantly decrease the internal temperature on hot days. This can include using shade cloths or external screens, which help to mitigate excessive heat while still allowing for diffused light that is beneficial for plant growth.

Additionally, effective ventilation is crucial in temperature regulation. By allowing hot air to escape and facilitating the entry of cooler air, ventilation helps maintain a more stable and optimal temperature within the greenhouse environment. This can be achieved through the use of vents, fans, or even automated systems that adjust airflow based on internal temperature readings.

This combination of shading and ventilation not only helps in managing temperature but also improves humidity levels, which are important factors in plant health and growth.