000 00313nam a2200121Ia 4500
001 MPKV054649
008 120911s9999 xx 000 0 und d
082 _a630
245 _aJournal of Agricultural Research Vol 74
_c;
246 _aJournal of Agricultural Research Vol 74
260 _c1947
650 _aAgronomy
999 _c52646
_d52646