00639naa a2200241 a 450000100080000000500110000800800410001910000190006024500940007926000090017365000120018265000100019465000190020465000160022365000150023965300080025465300080026265300170027070000200028770000170030770000180032477300550034216146501995-06-27       1991    bl uuuu     u00u1 u    #d1 aBRONSON, K. F.  aNitrogen-15 recovery in winter wheat as affected by application timing and dicyandiamide.  c1991  aAmônia  aGrão  aNitrificação  aNitrogênio  aProdução  a15N  aFBN  aImobilizacao1 aTOUCHTON, J. T.1 aHAUCK, R. D.1 aKELLEY, K. R.  tSoil Sci. Soc. Am. J.gv.55, n.1, p.130-135, 1991.