Worblaufen-Berne,Switzerland ,International, Potash Institute. <br/><br/>
Potassium in tropical crops and soils : Proceedings of the 10th Colloquium of the International Potash Insitute held in December 1973 in Abidjan / Republic of Ivory Coast 

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<br/><br/><label>Dewey Class. No.: </label>631.83IPI