000 00440nam a2200109Ia 4500
001 MPKV105819
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245 _aOptimizing YIelding - The Role of Fertilizers : Proceedings of th e12 th IPI Congress June 1982 at Goslor / Fredral Republic of Germany
_cInternational Potash Institute, Berm.;
260 _a Bem
_bInternational Patash INstitute,
_c1986
300 _axiii
_b299pp
365 _b45 /-
999 _c69210
_d69210