00466naa a2200169 a 450000100080000000500110000800800410001910000200006024500800008026000090016065000130016965300200018270000180020270000180022070000170023877300410025516139211995-06-27       1988    bl ---       0--  u    #d1 aGREGG, P. E. H.  aApplication strategies for Sechura phosphate rock use on permanent pasture.  c1988  aPastagem  aFOSFATO SOLUVEL1 aMACKAY, A. D.1 aCURRIE, L. D.1 aSYERS, J. K.  tFertil. Res.gv.17, p.219-234, 1988.