Zinc Nacional's Premium OMRI-Listed Zinc Sulfate for Commercial Growers

Maximo 360 is Zinc Nacional's flagship feed and fertilizer grade zinc sulfate monohydrate — a fine, free-flowing powder delivering 35.5% zinc and 17.5% sulfur with 100% water solubility. Trusted by commercial agriculture operations worldwide, Maximo 360 is OMRI listed and certified for use in organic production, making it the preferred zinc source for growers who need a clean, fast-acting micronutrient input across soil, foliar, and hydroponic programs.

Zinc drives growth hormone production, chlorophyll synthesis, carbohydrate metabolism, and cellular respiration. Deficiency shows up fast — stunted growth, interveinal chlorosis, and reduced yields. Maximo 360 corrects it faster.

Nutrient Analysis

• Zinc (Zn): 35.5% maximum
• Sulfur (S): 17.5%
• Lead (Pb): 0.01% maximum
• Iron (Fe): 1.0% maximum
• Cadmium (Cd): 0.01% maximum
• Chlorine (Cl): 1.0% maximum

Application Rates

• Foliar: 2–5 lb/acre
• Hydroponic stock solution: Dissolve 0.6 g per liter of water; apply at 1–10 mL/gallon of working solution to achieve 0.2–2.0 ppm zinc
• Constant-feed systems: Maintain 0.1–2.0 ppm zinc in nutrient solution
• Soil application: Broadcast or incorporate to correct zinc-deficient soils; compatible with granular and dissolved delivery

Key Features

• OMRI listed — certified for use in certified organic agriculture
• 100% water soluble — fully dissolves for foliar, fertigation, and recirculating hydroponic systems
• Fast-acting — immediately plant-available zinc and sulfur upon application
• Fine powder — dissolves rapidly with minimal agitation; no clogging of injectors or emitters
• Commercial 50 lb bag — sized for growers, nurseries, and wholesale distribution