How aeroponics feeds roots with mist

In aeroponics, plants are held in a lid with their roots hanging in a dark, closed chamber. Nozzles spray a fine mist of nutrient solution onto the bare roots for a few seconds at a time on a timer, so roots get water, nutrients and plenty of air, and the runoff drains back to a tank for reuse.

Controls

Labels

Animation speed

Spray time per cycle

Pause between sprays

Number of nozzles

Step through it

Plants in the lidSeedlings are wedged into holes in a lid. Leaves stay in the light above, and roots grow down into the dark chamber below.
Bare roots in airWith no soil or water bath around them, roots sit in humid air with plenty of oxygen, which is the main appeal of aeroponics.
Nozzles and pumpA pump pushes nutrient solution through fine nozzles that break it into mist droplets small enough to coat every root hair.
The timerA timer sprays for a few seconds, then pauses for minutes. Roots must never dry out, so a failed pump or timer is the biggest risk.
Longer spraysSpraying for 20 seconds every 2 minutes pushes the duty cycle above 14 percent and uses far more pump time and water flow.

Duty cycle math

The duty cycle is the share of time the nozzles are on: spray seconds divided by spray seconds plus pause seconds. Multiply by the nozzle count, the flow per nozzle and the 1,440 minutes in a day to get the water sprayed per day.

The model assumes 0.04 liters per minute per nozzle, a teaching value for small fogging nozzles. Most of the spray drips off the roots and returns to the tank, so what the crop actually consumes is a small fraction of the number shown.

Try it: hold the spray at 5 seconds and change the pause from 1 to 15 minutes. The daily spray volume falls by more than ten times, which is why growers tune the pause to the crop and the room's humidity.

Why the animation is slower

Real sprays are often only a few seconds long against several minutes of pause. The scene stretches the spray and shortens the pause so you can actually see it.

Where Avid uses this

Precise, low-volume water delivery is central to Avid's agricultural robotics and VerdantaIQ work, which showed a documented 58 percent water reduction in a session co-presented at IBM TechXchange 2026.

Sources

Horticulture Digest No. 97: Anthurium AeroponicsUniversity of Hawaii Cooperative Extension Service, ScholarSpace
Progressive Plant Growing Has Business Blooming (Spinoff 2006)NASA Technical Reports Server

How to cite this model

Avid Solutions International. (2026, November 11). How aeroponics feeds roots with mist [Interactive 3D model]. Avid Field Lab. https://avidsolutionsintl.com/explore/aeroponics

Last updated November 11, 2026

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