... kind of high efficacy compound fertilizer. Types as follows:2.1 NPK: 8-4-8 with seaweed: 10% + organic matter: 20% + Ca, Mg ... : 10% + organic matter: 20% + Ca, Mg, Zn, Fe, etc.2.4 NPK: 8-8-8 with seaweed: 10% + organic matter: 20% + Ca, Mg, Zn ... : 10% + organic matter: 50% + Ca, Mg, Zn, Fe, etc.2.8 NPK: 2-2-2 with seaweed: 10% + organic matter: 50% + Ca, Mg, Zn, Fe ...