When watering multi-span greenhouses, what should be taken into consideration? Let the multi-span greenhouse manufacturer provide the answers.

Firstly, when is the best time to water? Generally, the ideal time for watering is in the morning on sunny days, as the water temperature is closer to the ground temperature then, minimizing stress on the roots and allowing for quick adaptation. Additionally, the ground temperature recovers rapidly, providing ample time to expel moisture from the greenhouse. Secondly, it's crucial to choose the correct watering method and consistently practice sub-mulch irrigation. If possible, implement sub-mulch seepage irrigation. This effectively prevents the evaporation of ground moisture, reduces the air humidity inside the greenhouse, and prevents the occurrence of diseases. Once the ground temperature rises, it's important to ventilate and remove moisture promptly, lowering the indoor air temperature to a suitable range for healthy plant growth.
   
Afterward, it is crucial to control the amount of irrigation and avoid excessive watering. The drawbacks of overwatering include: first, it can lower the soil temperature, hinder the plant roots from absorbing nutrients, and affect their normal growth; second, it tends to increase the humidity inside greenhouses, which may lead to diseases. Therefore, the amount of water should be determined based on the weather conditions and the growth status of the plants.