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Agriculture

Yara launches smartphone nitrogen sensor

by Melody M. Bomgardner
March 15, 2019 | A version of this story appeared in Volume 97, Issue 11
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Photo shows Yara's phone application and camera clip.
Credit: Yara
Yara's new app and camera clips help farmers measure nitrogen in plants.

The fertilizer firm Yara has launched a free smartphone app that helps farmers determine crop nitrogen needs by imaging their leaves with the phone’s camera. The YaraIrix system measures chlorophyll levels in winter wheat, rapeseed, corn, and barley during early growth stages. It returns an instant fertilizer dose recommendation. For later growth stages, growers can use a clip that goes over the phone’s camera to turn it into a nitrogen sensor.

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