在水培法中，储液罐是容纳混合营养液并将其输送到植物根部的容器。它是任何循环水培系统的中心枢纽——营养液从储液罐流向植物，然后排回以进行再循环。储液罐的设计、尺寸和管理直接影响 pH 稳定性、养分浓度、溶解氧水平以及病原体爆发的风险。
关键事实
- Size: larger reservoirs buffer pH and EC fluctuations better; minimum 20 L for small systems
- Light-proof reservoirs prevent algae growth — use opaque containers or block all light
- Keep reservoir temperature at 18–22°C (65–72°F) to maintain dissolved oxygen and suppress pathogens
- Top up with plain water (not full nutrient solution) when solution level drops — plants drink more water than nutrients
- Full reservoir changes every 7–14 days maintain nutrient balance and hygiene
- Monitor pH and EC daily; large daily swings indicate plants are actively feeding