000 00543 a2200145 4500
082 _a631.8
_bPOT
090 _c22151
_d34796
245 _aPotassium in the agricultural systems of the humid tropics
_bProceedings of the 19th colloquium of the international potash institute held in bangkok
260 _aBangkok
_bInternational potash institute
_c1985
_g1985
300 _a405p.
_c23cm
650 _aFertilizers,soil conditioners,growth regulators
650 _aAgriculture and related technologies
650 _aSpecific techniques
942 _cL
999 _c49552
_d49552