000 00275nam a2200073Ia 4500
100 _aMukhopadhyay S.S.
245 _aBalanced fertilization for sustaining crop productivity Vol.2.extended abstracts ( with supplement ) .-1st
260 _bInternational Potash Institute, Switzerland
_c2006
082 _a631.81MUK
999 _c273366
_d273366