网盆（也称为网杯或网格盆）是一种小型塑料容器，具有开放的格子或网状壁结构，用于水培系统中，在允许营养液自由流过侧面和底部的同时，支撑植物根部。网盆可容纳生长介质（粘土鹅卵石、岩棉、椰壳纤维），这些介质可固定植物，而网格则允许根部延伸到下方的营养液中。
关键事实
- Common sizes: 2-inch (seedlings, NFT channels), 3-inch, 4-inch, 5-inch (larger fruiting plants)
- Mesh walls allow free flow of nutrient solution, oxygen, and roots in all directions
- Standard fitting for DWC bucket lids, hydroponic tower systems, and NFT channel holes
- Reusable — soak in diluted bleach or hydrogen peroxide solution between grows
- Net pot size should match the plant's eventual root mass and stem diameter at maturity
- Larger net pots hold more media and offer better plant stability for tall or heavy crops