000 00487 a2200145 4500
082 _a631.558
_bOPT
090 _c21978
_d34496
245 _aOptimizing yields-the role of fertilizers
260 _aWorblaufen-Bern
_bInternational Potash Institute
_c1982
_g1982
300 _a305p.
_c23cm
440 _aProceedings of the 12th IPI-Congress, June 1982 at goslar / federal republic of Germany
650 _aYIELDS
650 _aCULTIVATION AND HARVESTING,AGRICULTURE,FERTILIZERS
942 _cL
999 _c49401
_d49401