气培是一种无土栽培方法，将植物根系悬挂在空中，并定期喷洒营养液。 这样可以最大限度地增加根系区域的氧气暴露，从而产生任何栽培技术中最快的生长速度。
关键事实
- Roots hang in air and receive fine nutrient mist every 30–60 seconds
- Highest oxygen availability at root zone of any growing method
- Uses up to 95% less water than conventional soil farming
- Delivers fastest growth rates — up to 3× soil speed for some crops
- Requires reliable pumps and timers; power outages can harm roots quickly
- Ideal for high-value crops such as leafy greens, herbs, and strawberries