000 00319nam a22001337a 4500
020 _a9780123748201 (hbk)
082 _a630 SPA/AD.104
100 _aSparks, Donald L.
245 _aAdvances in agronomy: Vol 104
260 _aAmsterdam:
_bElsevier,
_c2009.
300 _a272p.
650 _aAgronomy
942 _cREF
999 _c297678
_d297678