000 00406nam a2200145Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631/635
_bADV.44
245 0 _aAdvances in agronomy. V 44
260 _aSan Diego
_bAcademic Press
_c1990
650 _aCrop root growth modelling
650 _aGenetic resources cereals
650 _aMultilocation trials
650 _aNitrogen fixation
942 _cBK
999 _c40420
_d40420