TY  - BOOK
AU  - Mengel,Konrad
AU  - Kirkby,Ernest A.
TI  - Principles of plant nutrition / 
U1  - 581.13 19
PY  - 1979///
CY  - Worblaufen, Bern, Switzerland : 
PB  - International Potash Institute, 
KW  - Plantas
KW  - Nutrição
ER  -