- Description
Granular Zinc Sulfate for Soil Application — Built for Field & Specialty Crops
Maximo 363 Maxi-Granule is Zinc Nacional's granular zinc sulfate monohydrate, engineered for direct soil incorporation and broadcast application. Delivering 35.5% zinc minimum in a uniform, dust-free granule, it's the practical choice for field growers and specialty crop operations that need a reliable, easy-to-handle zinc source without the mess of fine powder.
Zinc deficiency limits growth hormone production, chlorophyll synthesis, and carbohydrate metabolism. Maximo 363 corrects it at the root zone — where it counts most — through slow, consistent release as the granule breaks down in soil moisture.
Nutrient Analysis
- Zinc (Zn): 35.5% minimum
- Sulfur (S): 17.5%
Application Methods & Rates
- Broadcast & incorporate: Apply pre-plant or at-plant to zinc-deficient soils; till or water in for best results
- Side-dress: Apply alongside rows during the growing season for in-season correction
- Pre-plant soil amendment: Establish baseline zinc levels before transplant in zinc-deficient fields
- General agriculture: Suitable for vegetables, fruit crops, grains, and ornamentals where soil zinc is limiting
Key Features
- Maxi-granule format — uniform, dust-free granules for clean, easy handling and spreading
- 35.5% zinc minimum — high-analysis formula; more zinc per pound than lower-grade products
- Dual nutrient — delivers zinc and sulfur simultaneously to address co-occurring deficiencies
- Soil-safe — no chlorine; won't contribute to salt buildup or chloride toxicity
- Commercial 50 lb bag — sized for farm, nursery, and wholesale use
Maximo 363 Granular Zinc Sulfate | 35.5% Zn 50 lb
Maximo 363 Granular Zinc Sulfate | 35.5% Zn 50 lb
Questions about this item? Be the first to ask here.
Temporary Backorder
Save even more with a Commercial Account
Qualified buyers save 5–12% on every order
Couldn't load pickup availability
Share:
Contact Us

What Makes Us Different
At the leading edge of the market, Custom Hydro stands out by providing the growing industry with fertilizers that are not only of premium quality but also feature innovative
solutions tailored for the unique needs of hydroponic and organic farming practices.
-
Premium Quality
The Mark of Trusted Quality.
-
Highest Purity
Never Compromise on the Quality of Inputs.
-
Crop Specific
Customized Fertilizer for your Favorite Crops.