TY  - BOOK
AU  - Bidwell,R.G.S.
AU  - Steward,F.C.
TI  - Nitrogen metabolism
T2  - Plant physiology. a treatise
U1  - 581.1 
PY  - 1983///
CY  - Orlando, FL
PB  - Academic Press, 
KW  - FIJACION DEL NITROGENO
KW  - NITROGENO
KW  - ASPECTOS AMBIENTALES
KW  - SUELOS CONTENIDO DE NITROGENO
ER  -