ମୁଖ୍ୟ ତଥ୍ୟ

• No pumps, electricity, or timers required
• Air gap forms naturally as plants drink the nutrient solution
• Lowest cost and simplest setup of any hydroponic method
• Best for leafy greens, herbs, and short-cycle crops
• Reservoir is filled once and topped up as needed — minimal maintenance
• Developed by B.A. Kratky at the University of Hawaii