000			00298nam a2200121Ia 4500
008			140224s9999 xx 000 0 und d
082			_a631(047.1) N8
245			_aAdvances in Agronomy.
260			_aSan Diego _bAcademic Press _c1998
300			_av62(ix,308p.)
650			_aAgronomy
942			_cBK
999			_c91039 _d91039