Passive - Model N - Sensor System Brochure

N-Sensor Passive and N-Sensor ALS – two systems, one philosophy. In 2006, Yara launched the new N-Sensor ALS (Active Light Source), which works in a similar way to the classic N-Sensor to determine a crop’s Nitrogen demand by measuring the crop’s light reflectance. Both systems make use of the same field trial based agronomic algorithms for optimum site-specific fertilization and both are connected to a vehicle terminal where crop and GPS data is stored for processing.