TY  - RPRT
TI  - Effect of phosphorus deficiency on spectral reflectance and morphology of soybean plants
AU  - N.M. Milton
AU  - B. A. Eiswerth
AU  - C. M. Ager
PY  - 1991
DO  - 10.1016/0034-4257(91)90034-4
UR  - https://pubs.usgs.gov/publication/70016668
ID  - 70016668
ER  -