00816nam a2200229 a 450000100080000000500110000800800410001910000170006024500790007726002170015630000160037365000240038965000220041365000120043565000090044765300260045670000220048270000180050470000180052270000230054070000230056320084352015-02-11       2014    bl uuuu     u00u1 u    #d1 aGABOS, M. B.  aEvaluation of extractants for characterization of K silicate agrominerals.  aIn: WORLD FERTILIZER CONGRESS OF CIEC, 16., 2014, Rio de Janeiro. Technological innovation for a sustainable tropical agriculture: proceedings. Rio de Janeiro: International Scientific Centre of Fertilizersc2014  ap. 211-213.  aPotassium silicates  aSilicate minerals  aCerrado  aSolo  aSilicato de potássio1 aMARTINS, E. de S.1 aMENDES, D. R.1 aSANTOS, L. F.1 aOLIVEIRA, M. I. L.1 aLEITE, A. A. da S.