TY  - BOOK
AU  - Mortvedt, John J.
TI  - Micronutrients in agriculture
T2  - SSSA. Book series
U1  - 631.411 
PY  - 1991///
CY  - Madison
PB  - Soil Science Society of America
KW  - Elementos menores
KW  - Plantas
KW  - Elementos minerales
KW  - Suelos
ER  -