How Does Manganese Sulfate Deliver Fast-Acting Manganese Nutrition for Crops and Feed?
Technical Introduction
Manganese sulfate (MnSO₄) is a highly water-soluble inorganic salt commonly used as a source of manganese in agriculture and animal feed.
It typically contains 30–32% manganese (Mn) in the monohydrate form (MnSO₄·H₂O) and 33–35% in the anhydrous form (MnSO₄).
Manganese is an essential micronutrient for chlorophyll synthesis, enzyme activation, and photosynthesis in plants, and it is vital for growth and metabolism in animals.
Applications
1. Agriculture & Horticulture
Micronutrient Fertilizer: Quickly corrects manganese deficiencies in crops such as cereals, vegetables, and fruits.
Foliar Application: Rapid uptake by leaves for visible correction of deficiency symptoms.
Soil Amendment: Provides manganese in acidic to neutral soils efficiently.
2. Animal Feed
Trace Mineral Supplement: Prevents manganese deficiency in livestock and poultry, supporting skeletal development and reproductive health.
3. Industrial Uses
Chemical Industry: Precursor for manganese-based chemicals.
Pigment Production: Used in ceramics, glass, and dyes.
Advantages
Highly Soluble: Rapidly provides manganese for immediate plant uptake.
High Manganese Content: Efficient nutrient source compared to carbonates or oxides.
Versatile Applications: Suitable for soil, foliar, and feed uses.
Fast-Acting: Quickly alleviates deficiency symptoms in crops.
Typical Parameters
| Property | MnSO₄·H₂O (Monohydrate) | MnSO₄ (Anhydrous) |
|---|---|---|
| Manganese (Mn) Content | 30–32% | 33–35% |
| Sulfur (S) Content | ~16% | ~18% |
| Appearance | Light pink crystalline powder | White to light green powder |
| Solubility in Water | 100% | 100% |
| pH (5% solution) | 5–6 | 5–6 |
| Purity | ≥ 98% | ≥ 98% |
| Shelf Life | 2 years (dry storage) | 2 years |
FAQs
Q1: How is manganese sulfate different from manganese carbonate?
A1: MnSO₄ is highly soluble and fast-acting, while MnCO₃ is slow-release and better suited for long-term soil nutrition.
Q2: Can it be used as a foliar spray?
A2: Yes, typically at 0.2–0.5% solution for immediate correction of deficiencies.
Q3: Is it safe for animal feed?
A3: Yes, when dosed according to nutritional guidelines.
Q4: How quickly does it correct manganese deficiency in crops?
A4: Symptoms can improve within days of foliar application.
Q5: How should it be stored?
A5: Keep in a dry, sealed container to prevent caking and moisture absorption.
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