GREENHOUSE IRRIGATION
Greenhouse irrigation and fertigation systems
Irrigation decides uniformity, and uniformity decides yield. Source drip, dosing, filtration, disinfection and recirculation packages sized to your water source, crop and greenhouse area — quoted by independent suppliers against one specification.
SeedMatchGroup helps buyers source greenhouse equipment, agricultural seeds, fertilizers, irrigation systems, pumps, solar systems, drones, cooling systems and complete agriculture project suppliers worldwide.
SeedMatchGroup is supplier-neutral and helps buyers compare greenhouse, seed, fertilizer, irrigation and agriculture project suppliers worldwide. It does not manufacture, distribute or sell equipment or inputs.
What does a greenhouse irrigation system include?
A commercial greenhouse irrigation system includes a water source and storage, a pump set sized to peak demand, filtration matched to water quality, a fertigation unit with EC and pH control, distribution mains and dripline or micro-sprinkler emitters, drain collection, and in recirculating systems, disinfection before reuse. Water analysis is the starting point: filtration, treatment and dosing cannot be specified without it.
Product and supplier categories
Drip & emitters
Pressure-compensating drippers, arrow drippers, dripline and micro-sprinklers.
Fertigation units
Injector or venturi dosing, EC/pH control, multi-channel recipes.
Filtration
Disc, screen, sand and automatic self-cleaning filters.
Water treatment
UV, ozone, slow sand filtration, chlorination and reverse osmosis.
Pumps & controls
Booster sets, variable-speed drives, pressure regulation and zone valves.
Storage & recirculation
Tanks, reservoirs, drain gutters, return lines and buffer capacity.
Who buys through this route
- Greenhouse growers on substrate or hydroponics
- Nursery and propagation operators
- EPC and irrigation engineering contractors
- Projects with brackish, saline or high-bicarbonate water
Typical use cases
- Full irrigation and fertigation package for a new greenhouse
- Retrofitting dosing control to reduce fertilizer waste
- Adding disinfection to move from drain-to-waste to recirculation
- Solving pressure or uniformity problems in an existing block
Regions served
- Sub-Saharan and North Africa — Kenya, Nigeria, Ghana, Ethiopia, Morocco, Egypt
- Middle East and the Gulf — UAE, Saudi Arabia, Qatar, Oman, Jordan
- Central and South-East Asia — Uzbekistan, Kazakhstan, Thailand, Vietnam, Philippines
- Latin America — Mexico, Colombia, Peru, Chile, Brazil
- Mediterranean and Eastern Europe — Spain, Turkey, Greece, Romania, Azerbaijan
Why buyers use SeedMatchGroup
- Specification starts from your water analysis, not a catalogue.
- Offers normalised across filtration grade, dosing channels and pump duty.
- Planning tools available before the RFQ is issued.
- No commission-driven preference for any irrigation brand.
For consultants and advisors
Specifying a greenhouse for a client project?
Greenhouse consultants, horticultural engineers and agriculture EPC advisors use us to shortlist structure, climate-control and irrigation suppliers, prepare the RFQ pack and normalise the quotes that come back. You stay client-facing throughout.
Designing a greenhouse irrigation system
Irrigation design starts at the water source and finishes at the emitter. Every step between changes the pump, the filter and the dosing unit.
Water source and storage
- Borehole, surface water, municipal supply or harvested rainwater
- Peak daily demand per m² and 2–3 days of buffer storage
- Water analysis: EC, pH, bicarbonate, sodium, iron, manganese and pathogens
- Treatment train where analysis requires it — filtration, softening, acid dosing or reverse osmosis
Distribution and emitters
- Pressure-compensating drippers for uniform delivery across long rows
- Emitter flow rate and spacing set by crop and substrate volume
- Zoning by crop stage, compartment and solar orientation
- Target distribution uniformity above 90% and how it will be verified
Pumps, filtration and control
- Pump duty from peak zone flow and total head, with VFD control where flow varies
- Screen, disc or media filtration matched to the water quality
- Flow meters and pressure sensors per zone for fault detection
- Irrigation controller integrated with the climate computer and radiation-based start conditions
Drainage and recirculation
- Drain percentage target and drain measurement
- Collection gutters and return tanks for soilless systems
- Disinfection — UV, heat or slow sand filtration — before reuse
- Discharge compliance where drain water is not recirculated
What affects project cost
- Water quality and the treatment it forces
- Number of irrigation zones and control granularity
- Recirculation and disinfection scope
- Pump and storage sizing
- Automation level of the dosing and control system
Information needed to quote
- Crop, area and growing medium
- Water source and a laboratory analysis
- Peak daily water requirement or crop and climate data to derive it
- Number of compartments and desired zoning
- Available power at the pump station
- Whether drain water must be recirculated
What irrigation system is best for a greenhouse?
Pressure-compensating drip is the default for greenhouse production: it delivers a measured volume per plant, works with fertigation, and keeps foliage dry. Overhead and boom irrigation suit propagation and leafy benches; sub-irrigation and ebb-and-flow suit potted crops. Choice follows crop, growing medium and water quality, not price.
How much water does a commercial greenhouse need?
Planning-level demand is roughly 3–8 litres per m² per day for vine crops in a warm climate, and less for leafy greens or in temperate seasons, driven by radiation and ventilation. Size storage for two to three peak days and confirm the figure with a crop water requirement calculation for your site.
Frequently asked questions
Source greenhouses suppliers with one structured request
Share scope, country, volume or capacity and timeline. A sourcing specialist reviews your brief before any supplier is contacted, and supplier identities stay private.