TY  - BOOK
AU  - Ritchey, K. Dale.
TI  - Potassium fertility in oxisols and ultisols of the humid tropics
T2  - Cornell International Agriculture. Bulletin
PY  - 1979///
CY  - Ithaca, New York
PB  - State College of Agriuclture and Life Sciences
KW  - Fertilizantes potásicos
KW  - Potasio
KW  - Efecto en plantas
KW  - Suelos tropicales
ER  -