Why Should Water for watering plants be exposed to the sun?
In urban horticulture practices, more than 78% of the cases of potted plant wilting are related to improper watering. The pretreatment of water for watering plants is a key factor in improving plant survival rates, among which sunning the water is a fundamental maintenance method that directly affects the efficiency of root absorption and the balance of soil micro-ecology.
Principles of Sunning Water for Plant Irrigation
Chlorine Evaporation and Plant Protection Mechanism
Municipal tap water typically contains a free chlorine concentration of 0.5-1.5mg/L, and sunning for 48 hours can result in the evaporation of more than 92% of the chlorine. Experimental data shows that untreated water for watering plants can increase the cell membrane permeability of epiphyllum roots by 37%, directly affecting nutrient absorption efficiency.
Water Temperature Adjustment and Root Adaptability
The water temperature after exposure to the sun should be controlled within ±3°C of the ambient temperature. In summer, it is recommended to use diffused light treatment, while in winter, south-facing balconies can be chosen for sunning the water. For sensitive plants like orchids, a temperature difference of more than 5°C may trigger a stress response in the roots.
Advanced Water Quality Management Solutions
Multiple Water Source Proportioning Technology
Rainwater collection systems can obtain natural soft water with a pH of 5.6-6.5, which should be mixed with sunned tap water in a 1:3 ratio. Rice washing water needs to undergo a 15-day fermentation process, and when diluted and used with vitamin B12, it can improve nutrient absorption rates by 42%.
Dynamic Balance of Trace Elements
During the process of sunning water, adding volcanic rock or maifan stone can increase the mineral content of the water to 120-150mg/L. It is recommended to use hard water containing calcium and magnesium ions for watering succulents, while ferns are more suitable for soft water with low mineralization.
Modern plant care research shows that scientific water quality management can increase plant transpiration efficiency by 28% and extend the flowering period by 15-20 days. It is recommended to establish a watering log to record water temperature, pH values, and plant growth responses in different seasons, gradually forming a personalized irrigation plan.