N, P, and K characteristics of different age groups of temperate coniferous tree species in northwestern China
Crossref DOI link: https://doi.org/10.1007/s11676-017-0442-3
Published Online: 2017-06-28
Published Print: 2018-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Liu, Simin
Wang, Hao
License valid from 2017-06-28