000			00313nam a2200121Ia 4500
001			MPKV052713
008			120911s9999 xx 000 0 und d
082			_a630
245			_aJournal of Agricultural Research Vol 23 _c;
246			_aJournal of Agricultural Research Vol 23
260			_c1923
650			_aAgronomy
999			_c50713 _d50713