... fertilizer for Rich-harvest ---soil conditioner(Seaweed Compound Fertilizer Granule): 1. Functions: Improve soil's fertility Modulate soil ... 10-5-10 with seaweed: 10% + organic matter: 20% + Ca, Mg, Zn, Fe, etc. (3) NPK: 12-8-15 ... 10-10-10 with seaweed: 10% + organic matter: 20% + Ca, Mg, Zn, Fe, etc. (6) NPK: 12-6-12 ... 4-4-4 with seaweed: 10% + organic matter: 40% + Ca, Mg, Zn, Fe, etc. 3. How to use: (1) ...