TY  - RPRT
TI  - Soil N and 15N variation with time in a California annual grassland ecosystem
AU  - D.L. Brenner
AU  - Ronald Amundson
AU  - W. Troy Baisden
AU  - C. Kendall
AU  - J. Harden
PY  - 2001
DO  - 10.1016/s0016-7037(01)00699-8
UR  - https://pubs.usgs.gov/publication/70022807
ID  - 70022807
ER  -