TY  - BOOK
AU  - Barker, Allen V., ed.
TI  - Handbook of plant nutrition
U1  - 631.80202 
PY  - 2007///
CY  - New York
PB  - Taylor & Francis
N1  - Introduction -- Essential Elements: Macronutrients -- Essential Elements: Micronutrients -- Beneficial Elements -- Conclusion
ER  -