Passive - Model N - Sensor System
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.
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Product Details
The major difference between the two N-Sensors is that the ALS Sensor has its own built in light source. Instead of using daylight for the measurement the N-Sensor ALS is constantly beaming its own source of light at the crop, using Xenon flash lamps, and recording the reflectance. This enables N-Sensor ALS operation independent from ambient light conditions, even at night.
Achievements
- The N Sensor ALS was awarded the RASE Gold Medal in 2008
- Cereal yields increased by 3.5% where the same intensity of fertilizer was used
- Oilseed yields increased by 3.9% through the Absolute-N calibration
- Nitrogen savings of up to 14% have been recorded where N Sensor was used
- Increases in nitrogen use efficiency have reduced the carbon footprint by 10-30%
- Combine performance was increased by 12-20% due to reduced lodging, lower losses, and faster intake speeds
- Protein levels in cereal crops showed greater consistency averaging 0.2-0.5% above target
- An 80% reduction in lodging rates (compared with crops where nitrogen was applied under conventional practices)
Features
- Bring the optimal fertilizer rate in every part of the field
- Enhance the crop potential all over the field
- Increase fertilizer efficiency
- Decrease nitrogen residues in soils post harvest
- Increase yield
- Quality is more homogeneous
- Reduce harvesting time and cost
- Reduce risk of N losses to the environment
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