000 00331nam a2200109Ia 4500
001 MPKV110317
008 120911s9999 xx 000 0 und d
082 _a630
245 _aJournal of American Society of Agronomy. Vol.28
_c;
246 _aJournal of Agronomy and Crop Science
260 _aBerlin
_bPaul Parey Scientific Publ.
_c1936
999 _c73639
_d73639