Crop Urbanis paired climate analytics with sanitation and fertigation upgrades so Westland growers could supply romaine heads free of downy mildew while extending freshness.
Dutch greenhouse operators sought a romaine protocol that meets strict retail specs for disease tolerance and shelf life. Crop Urbanis collaborated with their agronomy team to synchronise climate, fertigation and hygiene practices.
Challenges & approach
Downy mildew outbreaks triggered costly crop losses and shipment refusals.
Uneven airflow created microclimates that favoured disease.
Post-harvest handling needed refinement to maintain crunch during transport.
Our contribution
Introduced predictive humidity models with proactive venting and UV sterilisation windows.
Reworked fertigation with calcium and micronutrient balances supporting disease resistance.
Defined hygienic harvest-to-pack SOPs, including chilled staging and sanitised crates.
Outcomes & proof
Metric
Result
Context
Protocol binder
Delivered
Varietal guidance + SOPs
Trial design
Delivered
Plots and sampling
QC checklist
Delivered
Defect and disease scoring
Project gallery
Disease-resistant romaine lettuce protocols
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