Greenhouses and Nurseries Industry Terminology

Examples: “We installed shade cloth to mitigate heat stress during the July heatwave”; “Coir was pre-flushed to reduce salinity stress on plugs”; “We adjusted alkalinity to avoid high-pH stress in petunias.”

Examples: “We switched to air-pruning pots to prevent root circling in liners”; “The raised mesh benches promote air pruning at the pot base”; “Air pruning produced a denser, fibrous root system for faster finish.”

Examples: “Dip cuttings in 0.3% IBA to improve rooting”; “Excess auxin can inhibit lateral bud break”; “We used a talc-based auxin powder on hardwood cuttings.”

Examples: “Annual backflow testing is scheduled to comply with code”; “Install a reduced-pressure principle assembly on the fertigation line”; “We failed inspection due to a missing backflow preventer.”

Examples: “Released Aphidius for aphids and Encarsia for whiteflies”; “We timed lacewing releases after scouting showed hotspots”; “Beneficials were incompatible with a broad-spectrum spray last week.”

Examples: “We increased air flow to reduce Botrytis pressure on geraniums”; “Rotate FRAC 1 and FRAC 7 fungicides for gray mold”; “Deadheading and sanitation lowered inoculum.”

Examples: “We chose a peat-based mix for higher CEC versus bark-heavy blends”; “Low CEC media required more frequent fertigation”; “We amended with clay to boost CEC.”

Examples: “Pre-rinse coir to lower EC before planting”; “We blended coir with perlite for improved porosity”; “Coir’s higher K levels require adjusting the nutrient recipe.”

Examples: “Our CEA retrofit added climate computers and LED toplighting”; “CEA enables year-round production of basil”; “Investors asked about our CEA yield per square foot.”

Examples: “Target a DLI of 12 mol·m⁻²·d⁻¹ for young ornamentals”; “We supplemented lighting to raise winter DLI”; “Low DLI delayed finish by two weeks.”

Examples: “We converted baskets to pressure-compensating drippers”; “Drip reduced foliar diseases compared to overhead”; “Emitter clogging prompted us to add filtration.”

Examples: “Flood trays for 5–8 minutes, then drain completely”; “Ebb-and-flow reduced runoff and labor”; “Algae growth on benches increased with longer flood cycles.”

Examples: “Pour-through EC exceeded 3.0 mS/cm—time to leach”; “We track concentrate and leachate EC daily”; “RO water reduced starting EC to near zero.”

Examples: “We run 150 ppm N through the injector”; “Fertigation recipes change by crop stage”; “Proportioners are calibrated monthly.”

Examples: “Rotate from FRAC 3 to FRAC 7 to manage resistance”; “We avoid back-to-back sprays from the same FRAC group”; “Labels list FRAC codes for planning rotations.”

Examples: “Tomato scions grafted to disease-resistant rootstocks”; “We used splice grafting for cucurbits”; “Grafted liners showed improved vigor and yield.”

Examples: “We scheduled pinching based on GDD, not calendar days”; “Cool springs reduced GDD accumulation”; “Finish time models use GDD for accuracy.”

Examples: “We reduced irrigation and increased airflow pre-ship”; “Plants were hardened outdoors for seven days”; “Skipping hardening caused transplant losses.”

Examples: “We dim LEDs to maintain target PPFD”; “Spectrum was tuned to promote compact growth”; “LED efficacy improved our kWh per unit.”

Examples: “We set action thresholds before spraying”; “IPM combines scouting, biocontrols, and sanitation”; “Banker plants support parasitoids in IPM.”

Examples: “We irrigate by substrate moisture sensor, not by clock”; “Hot, windy days advanced the schedule”; “SME EC trends inform irrigation frequency.”

Examples: “JIT delivery of liners reduced holding costs”; “We aligned potting dates with supplier JIT shipments”; “Stockouts revealed a JIT vulnerability during storms.”

Examples: “We track gross margin per square foot”; “Order fill rate is a key KPI for spring”; “Labor hours per finished unit improved 12%.”

Examples: “Leachate EC spiked after a feed change”; “We capture leachate to prevent runoff”; “High leachate pH signaled alkaline water issues.”

Examples: “A 70/20/10 peat–perlite–vermiculite blend”; “We added wetting agent to improve initial hydration”; “Bulk density was too high for plug trays.”

Examples: “Inoculated liners with endomycorrhizae”; “Mycorrhizae improved phosphorus uptake”; “Avoid high P at transplant to encourage colonization.”

Examples: “We switched to a 20-10-20 feed during vegetative growth”; “The label lists N-P2O5-K2O percentages”; “High K finish formula improved color.”

Examples: “Applied Steinernema for fungus gnat control”; “Root-knot nematodes caused galling in tomatoes”; “We heat-treated soil to reduce parasitic nematodes.”

Examples: “We chose an OMRI-listed wetting agent”; “OMRI status simplified organic audit prep”; “Not all OMRI inputs are allowed for every crop.”

Examples: “We maintain NOP-compliant records for inputs and sanitation”; “Transitioning a range to organic required buffer zones”; “The auditor checked seed and input invoices.”

Examples: “PAR spans 400–700 nm”; “We map PPFD to ensure uniform PAR at canopy”; “Shade cloth reduced PAR by 40%.”

Examples: “Low-rate paclobutrazol controlled stretch”; “A benzyladenine spray improved branching”; “We followed label re-entry intervals for PGRs.”

Examples: “Target media pH 5.8–6.2 for petunias”; “High alkalinity water drove pH up”; “We used acid injection to stabilize pH.”

Examples: “Required for interstate shipment of nursery stock”; “APHIS PPQ issued the phytosanitary cert after inspection”; “We held product until the cert cleared.”

Examples: “All incoming liners go to quarantine for a week”; “Dedicated tools prevent cross-contamination”; “We scout quarantine daily before release.”

Examples: “RO reduced bicarbonates, stabilizing pH”; “We blend RO and well water to hit target EC”; “RO membranes are replaced annually.”

Examples: “Under-bench heat maintained 21°C RZT for rooting”; “Cold RZT stalled poinsettia growth”; “We monitor RZT with substrate probes.”

Examples: “Weekly SME tests tracked EC and pH trends”; “SME EC exceeded our threshold after a heavy feed”; “We paired SME with pour-through for diagnostics.”

Examples: “Scout routes cover every bay twice weekly”; “Sticky card counts triggered whitefly releases”; “Scouting data informed our spray rotation.”

Examples: “Installed 50% shade in summer”; “We use retractable energy/shade curtains”; “Shade cloth reduced leaf scorch on young plugs.”

Examples: “Capillary mats kept plugs evenly moist”; “We reduced foliar disease by switching to sub-irrigation”; “Nutrient striping occurred with uneven wicking.”

Examples: “We used negative DIF to control stretch”; “A greater day–night temperature difference altered internodes”; “Automation set separate day/night setpoints.”

Examples: “Stage III plantlets were weaned in high humidity”; “TC provided disease-indexed mother stock”; “We multiplied new cultivars rapidly via TC.”

Examples: “We shaded newly potted liners for two days”; “Anti-transpirants reduced transplant losses”; “Root disturbance increased shock in bare-root stock.”

Examples: “Replaced 6-mil 4-year UV-stable film”; “UV additives reduced brittleness and yellowing”; “We selected a diffuse, UV-stable cover for propagation.”

Examples: “We target 0.8–1.2 kPa VPD in propagation”; “High VPD increased transpiration and tip burn risk”; “Misting lowered VPD during hot afternoons.”

Examples: “Perennials received 8–12 weeks at 5°C”; “Insufficient vernalization delayed flowering”; “We tracked chill hours to ensure a spring bloom.”

Examples: “We replaced cellulose pads before summer”; “High pad-to-fan ΔT confirmed proper cooling”; “Hard water scale reduced pad efficiency.”

Examples: “Placed one card per 1,000 sq ft for monitoring”; “Card counts spiked for fungus gnats after media delivery”; “We color-coded cards by bay for tracking.”

Examples: “Closed-loop irrigation eliminated discharge”; “We captured and disinfected return water to achieve zero runoff”; “Zero-discharge goals met local regulations.”