# Point-of-use sensors and machine learning enable low-cost determination of soil nitrogen

> Research article (Nature Food, 2021) · cited 60× · AI/ML

**Wikidata**: [openalex:W4200108457](https://www.wikidata.org/wiki/openalex:W4200108457)  
**Source**: https://4ort.xyz/entity/point-of-use-sensors-and-machine-learning-enable-low-cost-determination-of-soil-nitrogen