水培塔是一种垂直种植系统，植物被插入到排列成柱状的端口中，营养液被泵送到顶部，然后依次流经每株植物的根部区域。塔通过利用垂直高度来最大限度地提高每平方英尺地板空间的产量。
关键事实
- Vertical orientation multiplies growing capacity in the same floor footprint
- Nutrient solution is pumped to the top and gravity-fed downward past all root zones
- Common for lettuce, herbs, strawberries, and leafy greens
- Popular commercial and home systems include Tower Garden, Zipgrow, and DIY PVC towers
- Root zones remain moist but not submerged — similar to NFT mechanics
- Excellent for balcony and patio growing where floor space is limited