Grow lettuce in 30–38 days without a pump. This Kratky method guide covers container sizing, the air gap rule, nutrient mixing, and 4 common mistake fixes.
Urban Farming
The groundwork every grower needs: nutrients, light, pH, and the mistakes worth skipping.
Grow lettuce in 30–38 days without a pump. This Kratky method guide covers container sizing, the air gap rule, nutrient mixing, and 4 common mistake fixes.
Mix your first hydroponic nutrient solution right: EC 0.8–1.8 mS/cm, pH 5.5–6.5, step-by-step guide from OSU and MU Extension to avoid nutrient lockout.