TY  - SER
AU  - Ciprandi,M.A.O.
AU  - Wietholter,S.
TI  - Cation selectivity coefficients and diffusion parameters of potassium in soils of the state of Rio Grande do Sul, Brazil
KW  - Solo
KW  - Cation
KW  - Solucao do Solo
KW  - Estroncio
KW  - Modelo Matematico
ER  -