The air gap is the space between the nutrient solution and the bottom of the net cup. It forms as the plant uses water, and it is what makes the Kratky method passive. How it formsPlants take up more water than nutrients, so the level drops. The roots that are now in...
A mason jar is one of the simplest ways to start the Kratky method. You need a container, a lid with a hole for a net cup, a growing medium, and nutrient solution. Cover the jarClear glass lets light reach the solution, which encourages algae. Wrap the jar in dark...
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Practical articles on hydroponic systems, nutrients and growing specific plants, written for beginners and home growers.
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