... fertilizer, contains NPK, organic fertilizer and natural mineral. 15-15-15; 10-10-10 etc NPK Compound Fertilizer The seaweed ... fertilizer. Types as follows:2.1 NPK: 8-4-8 with seaweed: 10% + organic matter: 20% + Ca, Mg, ... + Ca, Mg, Zn, Fe, etc.2.3 NPK: 12-8-15 with seaweed: 10% + organic matter: 20% + Ca, Mg, Zn, ... Mg, Zn, Fe, etc.2.5 NPK: 10-10-10 with seaweed: 10% + organic matter: 20% + Ca, Mg, Zn ...