Irrigation.

Greenhouse irrigation is far more than turning on a tap — it is a complete water-chemistry chain that begins with a raw water source and ends with the crop fed to the drop and the surplus reclaimed. Managed well, that chain lets a greenhouse grow more crop per litre than almost any other form of agriculture, cutting water use to a fraction of open-field farming while giving the grower precise control over exactly what each plant receives.

The chain runs in stages, each depending on the one before. Source water — rain, well, surface or city water — is first pre-treated to make it crop-safe, correcting pH, removing particles and micro-organisms and softening hardness as needed. It is then enriched with a nutrient recipe and dosed, section by section, to the exact electrical conductivity and pH the crop requires at its current growth stage. The water the crop does not absorb drains away carrying unused nutrients and potential pathogens; rather than discard it, post-treatment disinfects that return flow so it can be safely recycled, and drainwater recycling blends it back into the supply — closing the loop toward near-zero discharge.

Underpinning the whole chain is the growing method. Hydroponics replaces soil with inert substrate or pure water systems, turning the root zone into a fully managed environment with exact nutrition, ample oxygen and no soil-borne disease — the foundation of commercial greenhouse yields. And every link in the chain is monitored: EC, pH and volumes are logged per valve section and steered by the irrigation computer, so the grower can see precisely what the crop is getting and adjust with confidence.

Because the right chain depends entirely on the source water quality and the local discharge regulations, irrigation is a genuine design decision rather than a commodity purchase. Explore each link below, or get in touch to have your water assessed and the system engineered around it.