00774nam a2200217 a 450000100080000000500110000800800410001910000230006024500700008326002170015330000160037065000240038665000220041065000120043265000090044470000230045370000200047670000170049670000220051370000210053520084342015-02-11       2014    bl uuuu     u00u1 u    #d1 aLEITE, A. A. da S.  aK-silicate from the ultrapotassic rocks of the Brazilian Cerrado.  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. 173-175.  aPotassium silicates  aSilicate minerals  aCerrado  aSolo1 aOLIVEIRA, M. A. de1 aALVES, C. A. L.1 aGABOS, M. B.1 aMARTINS, E. de S.1 aANGÉLICA, R. S.