000 00333nam a2200133Ia 4500
008 220216s9999 xx 000 0 und d
100 _aSiew B W
245 0 _aMechanical cultivation and root disease
260 _bPlanters Bulletin
_c1964
300 _a218-224
650 _aDisease control
650 _aRoot disease
942 _cJS
999 _c62713
_d62713