000			00313nam a2200133Ia 4500
008			140224s9999 xx 000 0 und d
245			_aAdvances in agronomy
260			_aSan Diego _bAcademic press _c1994
300			_a281p.
490			_av.52
600			_aDonald L. Sparks
650			_aAgronomy
942			_cBK
999			_c90966 _d90966