Effect of climate and air pollution on radial growth of mixed forests: Abies alba Mill. vs. Picea abies (L.) Karst.
https://scholar.google.co.kr/scholar?as_ylo=2019&q=radial+growth+environment&hl=ko&as_sdt=0,5#d=gs_qabs&u=%23p%3DbU9JAB9itd0J⅗
Nitrogen Fertilization Increases Root Growth and Coordinates the Root–Shoot Relationship in cotton
https://www.frontiersin.org/articles/10.3389/fpls.2020.00880/full#T1
