000 01155cam a2200289Mu 4500
020 _a0909071357
080 _a631.83(063)
_bI61P
245 1 _aProceeding(s) of the International seminar
_bThe Role of potassium in crop production
_cInternational Potash Institute
260 _aPretoria
_bInternational Potash Institute
_c1980.
906 0 0 _aInternational seminar on the role of potassium in crop production
_h1979, November 12-13
_gPretoria
650 _aPotassium in crop production
650 _aFertilizer
500 _ajointly arranged by International Potash Institute, Bern, Switzerland and The Fertilizer Society of South Africa
100 _a
_d
300 _a135 p
_c30 cm
_bfig.
_ctab.
029 0 _aCHVBK
_b108534286
035 _a(OCoLC)636433089
040 _aSzZUIDS
_eETHICS-ISBD
_bger
_cCHVBK
_dINARI
049 _aINAA
700 1 _aVan Rensburg, S.J.J.
710 2 _aInternational Potash Institute (Bern).
_lger.
710 2 _aFertilizer Society (South Africa)
710 2 _aInstitut International de la Potasse (Berne).
_lfre.
710 2 _aInternational Potash Institute (Bern).
_leng.
901 0 0 _a158929
901 _a158929
999 _c82487
_d82487