Gramafix® Sayuran Umbi ( Fertilizer for Root Crops) as fertilizer specific formula for tuber and root crops like : onion, edible tuber, potato, casiavera, sweet potato, cassava, flower gardening, carrots, etc. Contain complete ingredient such as macronutrient NPK ( Nitrogen, Phosphorus, Kalium/ Potassium) , secondary nutrient MgSCa ( Magnecium, Sulfur, Calcium/ Potash) and micro essential element ( Zn, B, Bo, Cl, Mn, Fe) . The formulation has registered at Ministry of Agriculture Republic Indonesia Number : T902/ BSP/ II/ 2003.