Update README.md

README.md

@@ -41,9 +41,18 @@ The original train/test/val split has been preserved in the `split` column.
 ## Citation
 
 ```bibtex
-<!-- TODO: add BibTeX citation -->
+@article{han2026deep,
+  title={Deep roots through time and crops: insight from five seasons at DeepRootLab},
+  author={Han, Eusun and Cl{\'e}ment, Corentin and Czaban, Weronika and Smith, Abraham George and Dresb{\o}ll, Dorte Bodin and Thorup-Kristensen, Kristian},
+  journal={New Phytologist},
+  volume={250},
+  number={4},
+  pages={2670--2688},
+  year={2026},
+  publisher={Wiley Online Library}
+}
 ```
 
-<!-- TODO: add plain text citation -->
+Han, E., Clément, C., Czaban, W., Smith, A. G., Dresbøll, D. B., & Thorup-Kristensen, K. (2025). Dataset used in "Five seasons with DeepRootLab: A unique facility for easier deep root research in the field" [Dataset]. Zenodo. https://doi.org/10.5281/zenodo.15213661
 
 *This dataset was reformatted from its original format to match HuggingFace standards.*