New deep float system: lower cost, higher yield

Stronger crops, lower costs and a stable growing climate: these are the first results of the new deep-float system that ErfGoed and Meteor Systems have been testing since June. The system combines Meteor Systems' cultivation technology with the proven ErfGoedFloor and makes optimal use of water, air and energy.

Smart system with ErfGoedFloor as the basis

The basis of the system is simple but well thought out. Under the floats is a patented ErfGoedFloor with both water and air supply. Several times a day, the crop is watered via this floor. As soon as the watering stops, the system blows air through the same pipes. This keeps the microclimate moving. CO₂ can also be added through these channels.

"The air flows through the crop from below, distributing temperature and humidity more evenly," says Hugo Paans, ceo of ErfGoed. "That makes the climate more manageable and ensures stable growth."

Bas Dirven of Meteor Systems adds: "Active aeration stimulates plant evaporation. Roots develop well without getting too big and the leaves take full advantage of the available energy."

Clean, stable and mold-free

Thanks to the lava layer in the floor, the root environment remains oxygenated and microbiologically balanced. Stagnant water does not occur, so disinfection is hardly necessary. "The combination of air, water and rock actually works self-cleaning," explains Cock van Bommel, Business Development Manager at ErfGoed. "The water stays in motion, the roots stay healthy and fungi have no chance."

No plant protection products have been used since the start of the trial in June 2025. An important step toward sustainable and resilient cultivation in these times of increasing demand for products with minimal environmental impact.

Energy savings through targeted heating

A notable advantage of the system is energy savings. The greenhouse temperature can be lowered by 1.5 to 2 degrees because heat is added from below, exactly where the plant needs it. "It's a waste to heat the whole greenhouse if the heat is needed at the bottom of the crop," says Hugo Paans. "With this approach, you use the energy where it has the most effect."

Consistent quality and higher yields

The combination of air and water from below stimulates root growth without overdevelopment. The air flow dries the roots outside the plug, prevents fungal growth and activates the leaves. The result: strong plants, higher evaporation capacity and consistent product quality.

Initial results are promising: about 3.5 kilograms of lettuce per m² per 28-day growing cycle, good for about 85 kilograms per m² per year.