000 00330nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631/635
_bADV.71
100 _aSparka, Donald L
245 0 _aAdvances in agronomy. V.71
260 _aSan Diego
_bAcademic Press
_c2001
650 _aControlled release fertilizers
942 _cBK
999 _c41743
_d41743