000 00311nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
020 _a9780123942784
082 _a631/635
_bADV.117
100 _aSparks, D L
245 0 _aAdvances in agronomy, V. 117, 2012
260 _aElsevier
_bAmsterdam
_c2012
942 _cBK
999 _c43072
_d43072