# Quantification of Grassland Biomass and Nitrogen Content through UAV Hyperspectral Imagery—Active Sample Selection for Model Transfer

> Research article (Drones, 2022) · cited 18× · AI/ML

**Wikidata**: [openalex:W4220810137](https://www.wikidata.org/wiki/openalex:W4220810137)  
**Source**: https://4ort.xyz/entity/quantification-of-grassland-biomass-and-nitrogen-content-through-uav-hyperspectral-imageryactive-sample-selection-for-mo