点滴灌水システムは、受動水耕栽培の最も単純な形態であり、吸収性の芯が毛細管現象によって貯水槽から培地へと養液を引き上げます。植物は必要に応じて培地から水分を吸収し、ポンプ、電気、タイマーは不要です。
主なポイント
- Completely passive — no pumps, electricity, or moving parts
- Capillary action pulls nutrient solution from reservoir through the wick into the medium
- Common wick materials: cotton rope, felt, nylon string, or fibrous growing media
- Best for small, low-demand plants: herbs, lettuce seedlings, succulents
- Not suitable for large, thirsty plants — wick cannot deliver nutrients fast enough
- Growing medium must be fine enough for capillary action: coco coir or perlite-vermiculite mixes