How Does Zinc Sulfate Monohydrate Provide Efficient Zinc Nutrition for Crops and Livestock?
Technical Introduction
Zinc Sulfate Monohydrate (ZnSO₄·H₂O) is a water-soluble inorganic salt containing 33–36% zinc, higher than the heptahydrate form.
It is a white crystalline powder, providing an economical and concentrated source of zinc for agriculture, animal feed, and industrial uses.
This compound is ideal for soil application, foliar feeding, and feed premixes, offering fast zinc availability.
Applications
1. Agriculture & Horticulture
Micronutrient Fertilizer: Corrects zinc deficiency in cereals, fruits, vegetables, and cash crops.
Foliar Spray: Rapid absorption by leaves to improve growth, yield, and quality.
Seed Treatment: Enhances germination rate, root development, and seedling vigor.
2. Animal Feed
Feed Additive: Supplies essential zinc to prevent growth retardation, skin issues, and reproductive problems in livestock and poultry.
3. Industrial Uses
Electroplating & Pigments: Used as a zinc source in electroplating baths and pigment production.
Water Treatment: Acts as a coagulation aid and helps control water quality.
Advantages
High Zinc Content: 33–36% Zn, more concentrated than heptahydrate.
Cost-Efficient: Lower bulk required for the same zinc input.
Fast Solubility: Ensures quick nutrient release in soil and foliar applications.
Versatile: Suitable for soil, foliar, fertigation, and feed use.
Typical Parameters(Agricultural Grade)
| Property | Value |
|---|---|
| Chemical Formula | ZnSO₄·H₂O |
| Zinc (Zn) Content | 33–36% |
| Sulfur (S) Content | ~13% |
| Appearance | White crystalline powder |
| Solubility in Water | 100% |
| pH (5% solution) | 4.0 – 6.0 |
| Purity | ≥ 98% |
| Shelf Life | 2 years in dry, sealed storage |
FAQs
Q1: How is monohydrate different from heptahydrate zinc sulfate?
A1: Monohydrate contains higher zinc content, so less product is needed for the same nutritional effect.
Q2: Can it be used for foliar sprays?
A2: Yes, diluted solutions of 0.2–0.5% are commonly applied to leaves safely.
Q3: Is it suitable for livestock feed?
A3: Yes, it is an effective zinc supplement when dosed according to feed regulations.
Q4: Can it be mixed with other fertilizers?
A4: Compatible with most fertilizers, but avoid mixing with phosphate solutions to prevent precipitation.
Q5: How quickly does it correct zinc deficiency?
A5: Foliar applications show visible improvement within a few days; soil applications may take longer depending on soil pH and texture.
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