Agriculture & Environment

Agriculture & Environment

Crop health mapping (NDVI / NDRE)

Map differences in crop condition so field checks and management can be targeted.

Discuss this service

What you receive

  • Crop-index and management-zone maps
  • Scouting/validation locations
  • Crop/plant metrics where scoped
  • Interpretation, limitations and follow-up report
How we deliver

Scope & options

NDVI and NDRE are spectral indices that highlight spatial variation in vegetation response; they do not diagnose cause on their own.

Radiometric consistency and field ground truth are necessary for useful repeat comparisons.

Prescription zones translate observed variation into management action only with agronomic interpretation.

Explore 6 service variants

NDVI/NDRE crop-vigour mapping

Show relative differences in vegetation response.

Indices need calibration and ground checks; no automatic disease diagnosis.

Plant counting and canopy measurement

Estimate visible stands, missing plants and canopy metrics.

Occlusion and crop stage affect detection; validate counts.

Crop-trial phenotyping

Measure repeatable visible or sensor-derived trial traits.

Crop-specific method and validation are necessary.

Georeferenced soil sampling and mapping

Link laboratory soil measurements with field positions.

RGB or NDVI does not directly measure soil pH or nutrient concentration.

Irrigation and water-stress assessment

Combine thermal/spatial observations with field and weather context.

Temperature alone is not a complete irrigation prescription.

Variable-rate prescription mapping

Produce management zones for qualified treatment decisions.

Agronomist sign-off and equipment-compatible outputs are separate from index generation.

Useful to know

Terms, explained
NDVI
Normalized Difference Vegetation Index derived from red and near-infrared response.
NDRE
Normalized Difference Red Edge index, useful for selected crop-vigour assessments.
Ground truth
Field observations used to interpret what a spectral pattern actually means on that crop and date.
Will NDVI tell me exactly which disease is present?

Similar index changes may have different causes. Field scouting, agronomic review and sometimes laboratory tests are needed.

Can a drone directly measure soil nutrients?

Ordinary RGB or multispectral imagery does not measure that parameter. Georeferenced sampling and suitable laboratory analysis are required for measured soil chemistry.

Are plant counts guaranteed to be exact?

Canopy closure, occlusion and crop stage affect counting. Validation and error reporting should be part of the scope.

Can the map drive a spraying plan?

It can inform a qualified agronomist’s plan. Product permissions and spraying requirements remain separate and must be checked.

Method & limitations

Use calibrated NDVI/NDRE or other appropriate observations with field validation.

Separate stress indicators from a confirmed disease, nutrient or yield diagnosis.

Link crop maps to qualified agronomic investigation or an agreed prescription workflow.

Indices need calibration and ground checks; no automatic disease diagnosis.

Occlusion and crop stage affect detection; validate counts.

Crop-specific method and validation are necessary.

RGB or NDVI does not directly measure soil pH or nutrient concentration.

Temperature alone is not a complete irrigation prescription.

Agronomist sign-off and equipment-compatible outputs are separate from index generation.

Sources & references

Your project

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Crop health mapping (NDVI / NDRE)

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Help me ask
  • What field checks will explain the stress shown on the map?
  • Do we need plant counts, soil samples or irrigation assessment?
  • Will the output be a scouting map or an approved treatment prescription?
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