Crop Canopy Sensors for Nutrient Mapping

The use of crop sensing technology in cereal and grain crops is one of the fastest growing segments in precision farming.


Topcon CropSpec crop canopy sensors work with either the X35 or X25 consoles to monitor in-field variability. CropSpec units mount on the cabin roof out of harm’s way, providing the largest sensor footprint in the industry, attaining more accuracy in application. CropSpec sensors measure plant reflectance to determine chlorophyll content, which correlates to nitrogen concentration in the leaf. This non-destructive, non-contact measurement method provides accurate, stable readings with repeatable values.






Use for on-the-go application, or record for prescription mapping

Operators can achieve improved average application rates by using CropSpec to measure nutrient levels on the fly. Or they can record variable data and import into Topcon SGIS software to generate prescription maps to bring to their in-cab consoles for true variable rate prescription application.


  • Reduce fertilizer costs by applying based on crop need
  • Create prescription maps, or prescribe and apply in a single pass
  • Cab-mounted sensors protected and out of harm’s way
  • Largest sensor footprint in the industry for better results
  • On-the-go averaging with user-determined target rates
  • Views crops at a uniform diagonal to minimize error


Physical and Environmental
General: One unit DIMS: 200 x 80 x 80mm
Operating Temperature: 0 - 60° C
Mounting Height: 24 meters

Power and Electrical
Input Voltage Range: 10-32 VDC
Certifications and Standards
Dust/Water Protection: IP67




Advanced GPS Ag Ltd
183Alford Forest Road
Ashburton, 7700
Mobile: 0274 552 305
© 2022 All rights reserved Advanced GPS Ag - NZ Topcon Distributor - Precision Ag Solutions. Website by NYX (Newsite) | Login