Manganese Sulphate (MnSO₄·H₂O) is a fine powder, fertilizer-grade source of manganese, guaranteed at 32% Mn with 18% sulphur. It corrects manganese deficiency in soil and crops when soil or tissue analysis confirms the need. Manganese availability is closely tied to soil pH, so apply it only against a documented deficiency and at rates matched to that analysis.
The Role of Manganese
Manganese is an essential micronutrient that activates many enzyme systems and is a direct component of others. It is central to photosynthesis, where it drives the reaction that splits water and releases oxygen, and it is needed for lignin formation, which strengthens cell walls, as well as root growth and nitrogen metabolism. Deficiency shows first as interveinal yellowing on younger leaves and is most common on high-pH, sandy, and organic peat or muck soils.
Application
This product may be used to correct soil and/or foliar deficiencies as determined by soil and/or tissue analysis. Interpretation of soil and/or tissue analysis and application recommendations should be made by Certified Crop Advisors, Professional Agronomists, or county agricultural representatives. Use Only in Blended Fertilizers.
Guaranteed Analysis
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Manganese (Mn): 32%
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Sulphur (S): 18% min
Form: fine powder.
Storage, Safety & Handling
Caution: This product contains manganese and should be used only as recommended. It may be harmful if misused. Keep away from children and pets. Avoid waterway contamination and do not pour down drains.
Warning: Read and understand all safety precautions before handling. Refer to the WHMIS/SDS information. SDS available on request.
Permitted for use in organic production for correcting documented manganese deficiencies, under Canada's Organic Production Systems General Principles and Management Standards and Permitted Substances Lists (CAN/CGSB-32.310-2026 and CAN/CGSB-32.311-2026).
