PEI weather network

Crop Stage Tracker

Estimate crop development stages from weather, planting dates, and observed-stage check-ins, then carry that context into disease, insect, and irrigation decisions.

PEI weather stations

70 mapped stations

EPAA (1)UPEI (46)PEI Department of Agriculture (13)Private (2)Government (8)

Click the map to open a larger view. Hover over a station marker to see its name.

Shared context layer

Ready for potato stage tracking

Use confirmed stage milestones to truth the thermal model against field observations. The page will keep both the estimated path and verified check-ins visible together.

Build crop stage report

Set the crop, station, planting date, and end date here. The model accumulates from planting, then compares estimated stage milestones against the observed milestones you log below.

Loading stations...

Decision-support only: Model outputs depend on weather data, user inputs, and biological assumptions. Verify results with field scouting, local field conditions, product labels, agronomic advice, and applicable regulations before acting.

1Crop 2Search stations

3Planting / seeding date 4End / current date Variety / maturity group (optional)

Advanced thermal settings

Primary heat-unit basis Manual primary-base override (°C)

Most users should leave the crop-selected basis alone. Secondary indices remain visible in the full record.

Before acting on this report, confirm crop stage, field conditions, scouting observations, product labels, and local regulations.

Choose a crop, at least one station, a planting date, and an end date.

Confirmed crop-development milestones

Log agronomist-confirmed stages here so the accumulation chart can compare predicted thresholds against true field observations.

5Confirmed stage 6Confirmed stage date

No confirmed milestones logged yet.

Saved field and crop presets

Save this station set, crop, dates, and confirmed stage milestones so growers can reload the field later without re-entering assumptions.

Using an unsaved crop-stage setup.

Preset	Crop	Stations	Planting date	Saved	Actions
No saved field and crop presets yet.

Decision summary

Start with the current stage, the next expected stage, the thermal basis being used, and how confident the estimate is.

Build a crop stage report

Station stage cards will appear here after you select a crop, station set, planting date, and end date.

Stage accumulation and milestone truthing

Use the accumulation line to compare estimated stage-threshold crossings against agronomist-confirmed stage dates for each selected field or station.

Generate a report to see the accumulation line and the estimated-versus-confirmed milestone markers.

Expected milestones by crop and heat-unit basis

These are the expected model milestones from planting onward. Use them as the reference layer behind the blue dotted lines, then compare them against your confirmed field observations.

Crop	Primary basis	Stage	Expected units from planting
Crop milestone references will appear here.

Full model record

Station	Crop	Current estimated stage	Observed stage	Planting date	Emergence source	Primary basis	Primary units	Secondary indices	Next stage	Units to next stage	Confidence	Data freshness
Generate a crop stage report to view the full thermal record.