Pasang surut (juga disebut banjir dan kuras) adalah sistem hidroponik di mana nampan tumbuh secara berkala dibanjiri dengan larutan nutrisi dari reservoir di bawahnya, kemudian dibiarkan mengering sepenuhnya. Siklus basah-kering mengantarkan nutrisi ke akar selama banjir dan menarik oksigen ke zona akar selama fase pengurasan.
Fakta utama
- Timer-controlled pump floods the grow tray 2β6 times per day depending on medium and crop
- Complete drainage after each flood oxygenates roots β reduces root rot risk
- Compatible with many growing media: rockwool, clay pebbles, coco coir, perlite
- Versatile β suits leafy crops, tomatoes, peppers, cucumbers, and cannabis
- Overflow fittings prevent flooding if the drain is blocked β a key safety feature
- Reservoir and pump size must match tray volume for reliable flood-drain cycles