00581nam a2200205 a 450000100080000000500110000800800410001910000170006024500990007726000470017630000100022349000590023365000150029265000130030765000140032065000090033465000090034365300080035270000150036014704202007-11-19       1976    bl uuuu     u0uu1 u    #d1 aKEOGH, J. L.  aResponse of soybeans grown on silt loam soils to direct and residual phosphorus and potassium.  aFayetteville: University of Arkansasc1976  a23 p.  a(Agricultural Experiment Station. Report Series, 225).  aAdubação  aFósforo  aPotássio  aSoja  aSolo  aUSA1 aMAPLES, R.