000 00486nam a2200145Ia 4500
001 MPKV105493
008 120911s9999 xx 000 0 und d
100 _aSparks D L
245 _aAdvances in Agronomy Vol. 72
_cSparks D L;
246 _aAdvances in Agronomy Vol. 70
260 _aUSA
_bAcademic Press A Harcourt Science and Technology Company 525 B Street Suite 1900, San Diego, Califormia 92101-4495
_c2001
300 _aix
_b202pp
365 _b5541.48/-
700 _aSparks D L
999 _c68892
_d68892