000			00621nam a2200229Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _aAR 630 _bADV.8
245			_aAdvances in agronomy _cedited by A.G. Norman
260			_aNew York : _bAcademic Press , _c1956
300			_axi, 401p.: ill ; _c23.7cm
500			_aContent: v.8
504			_aIndex: pp 403-23
653			_aAgronomy
653			_aFestuca arundinacea
653			_aField crops
653			_aNitrogen fertilizers
653			_aOrganic soils
653			_aWinter hardiness
700			_aNorman, A.G., ed.
942			_cEN _2ddc
999			_c22732 _d22732