000 00371nam a2200133Ia 4500
008 220204s9999 xx 000 0 und d
082 _a581.1:631.524.84
_bJOH
245 0 _aPhysiological processes limiting plant productivity.
260 _aLondon
_bButterworth
_c1981
650 _aCrop physiology
650 _aNitrogen fixation
650 _aWater stress
942 _cBK
999 _c36319
_d36319