Hydroponics.

Take away the soil and you control everything the root sees

Hydroponics is the foundation of modern high-tech horticulture: growing without soil, so that the root zone stops being an uncontrolled variable and becomes a managed environment. Instead of soil with its unpredictable structure, nutrition and pathogens, the crop grows in an inert substrate or directly in a water system, fed a precisely dosed nutrient solution. Take the soil away and the grower controls everything the root sees — exactly how much water, exactly which nutrients, exactly how much oxygen — and that control is what unlocks the yields, quality and resource efficiency that define commercial greenhouse growing.

There are two broad families. Substrate systems grow the crop in slabs or bags of an inert medium such as stone wool, coir or perlite, which holds the roots and buffers water and nutrients while drippers deliver the fertigation recipe — the standard for vine crops like tomatoes, peppers and cucumbers. Pure water systems dispense with substrate altogether: in NFT (nutrient film technique) a thin film of solution flows continuously past the roots, while in deep water culture the plants float with their roots suspended in an aerated nutrient pond. Leafy greens and herbs thrive on these. The right choice depends on the crop, the layout and the operation's risk profile.

The benefits are consistent across both. Precise root-zone control means the crop is never over- or under-watered and receives an exact nutritional recipe that shifts with its growth stage. Eliminating soil eliminates soil-borne diseases and weeds, cutting crop-protection needs. And because hydroponic systems are almost always run as closed, recirculating loops, drain water and nutrients are captured and reused, so water and fertiliser consumption fall dramatically compared with open-field growing.

This is the engine behind the yields of our Expert and Plus Series greenhouses and the standard for commercial vegetable production worldwide. DutchGreenhouses® designs the hydroponic system — substrate or water, irrigation, dosing and recirculation — around the crop and water source so the root zone performs as engineered. Get in touch to design a hydroponic system for your project.