Manganese-phosphorus interactions in soils and in soybean (Glycine max. Merrill) - Supa-Udomlerk, Boonrawd 1939- (1974)
Thesis (Ph.D.)--University of the Philippines, Los Banos.
Keywords: Soils -- Manganese content; Soils -- Phosphorus content; Soybean -- Fertilizers and manures