Search Results       Your search for [subject]Potassium -- Psychological effect returned 1 record.           Effects of potassium on the growth, yield and on the nutrient cation relationship in rice grown on calcereous soils [microform]. by Montecillo, Lupo A., 1934-; Quezon City: Photoduplication Services,University of the Philippines Library, 1975. Subject: Potassium -- Psychological effect; Soils -- Potassium content; Soils -- Calcium content.          Add to Book Cart Relevance: 18.90%