Zinc is one of the most critical micronutrients for crop health, root growth, and yield quality. As demand for scientifically formulated micronutrient fertilizers grows across Indian agriculture, Zinc Sulphate Monohydrate 33% (Powder) has become one of the most sought-after inputs for farmers, distributors, and agro-input dealers. This guide covers what zinc sulphate monohydrate is, how it’s manufactured, its agricultural benefits, and who supplies it in India — including MSNR Enterprises, a micronutrient manufacturing company based in Andhra Pradesh.
What Is Zinc Sulphate Monohydrate 33%?
Zinc Sulphate Monohydrate (ZnSO4·H2O) is an inorganic zinc compound containing approximately 33% elemental zinc — the highest concentration among commonly available zinc sulphate grades. This makes it the preferred choice for micronutrient fertilizer applications, where a higher zinc content per kg means better cost-efficiency for farmers compared to the heptahydrate form (~21% zinc).
In agriculture, zinc plays a vital role in:
Photosynthesis
Carbohydrate metabolism
Sucrose and starch formation
Root growth, when present in adequate proportion in the soil
Benefits of Zinc Sulphate Monohydrate 33% for Crops
Enhances overall crop yields
Regulates soil pH
Helps leaves develop green colour at an early growth stage and improves fruit yield
Increases plant durability against cold weather
Produces better crop appearance with zero deformity
Compatible with urea
Increases water-holding capacity and reduces dehydration incidence
Decreases thin grain formation
Helps prevent Khaira disease in paddy
How It’s Applied
Application methods:
Spray / foliar application
Fertigation / drip irrigation
Recommended doses:
Soil application: 4–5 kg per acre
Foliar spray: Dissolve 3–5 gms in one litre of water and spray on both leaf surfaces. Three sprays are recommended, timed as follows:
First spray — 20 days after sowing/transplantation
Second spray — 25 days after the first spray
Third spray — at the time of blooming/flowering
Spray volume requirement varies by crop growth stage.
Target crops: Pulses, cereals, fruits, vegetables, flowers, citrus, sugarbeet, cotton, oilseeds, medicinal plants, and other field crops.
Formulations can be customized to meet state-specific regulatory norms across India, and export-grade customization is available on request.
How Zinc Sulphate Monohydrate Is Manufactured
Manufacturers typically produce zinc sulphate monohydrate through:
Reaction of zinc oxide/zinc ash with sulphuric acid, followed by purification.
Crystallization under controlled temperature and drying, to achieve the stable monohydrate crystal form (as opposed to the more hydrated heptahydrate).
Quality testing for zinc assay, moisture content, and impurity levels before packaging.
About MSNR Enterprises — Zinc Sulphate Monohydrate 33% Manufacturer, Andhra Pradesh
MSNR Enterprises is a Micro-Nutrients manufacturing company with its manufacturing unit located at Survey No. 335/1A, Lakshmipuram village, Tiruvuru mandal, NTR district, Andhra Pradesh – 521235, stationed on NH 30, approximately 65 km from Vijayawada and 275 km from Hyderabad.
The firm is a partnership firm registered in 2024, led by Mr. M. Srinivasa Reddy (Managing Director) and Mrs. M. Kavitha (Director).
MSNR Enterprises is dedicated to supporting modern agriculture with high-quality, reliable, and scientifically formulated micronutrient products, serving farmers, distributors, and agro-based industries across the region. The company combines advanced production techniques and strict quality control to deliver micronutrient solutions aimed at healthier crops, improved yields, and sustainable farming practices.
Compliance and licensing: MSNR Enterprises holds a manufacturing licence issued by NTR district authorities, GST registration, PAN registration, MSME (Udyam) registration, a Telangana State fertilizer licence, and a Chhattisgarh State licence — enabling supply across multiple states.
Flagship product: Zinc Sulphate Monohydrate 33% (Powder)
Vision: To become a leading and trusted manufacturer of high-quality micronutrients in India, empowering farmers with innovative, sustainable, and science-driven solutions.
Mission highlights:
Manufacture and supply premium-grade micronutrient products meeting national and global quality standards
Support farmers with reliable, effective, and affordable agricultural inputs
Continuously innovate through research, technology, and process excellence
Maintain a customer-centric approach with timely delivery and transparent practices
Promote sustainable agriculture through balanced plant nutrition
Contact MSNR Enterprises:
Phone: +91 7207030999 / +91 9491963369
Location: Lakshmipuram village, Tiruvuru mandal, NTR district, Andhra Pradesh
Website: msnrenterprises.com
What to Check Before Buying Zinc Sulphate Monohydrate 33%
Zinc assay — confirm it meets the 33% standard via a current lab report/certificate of analysis
Manufacturing licence and registrations — verify the supplier is a registered manufacturer (not just a trader), especially for bulk or export orders
State-specific compliance — fertilizer regulations vary by state; confirm the product is licensed for your state
Packaging and logistics — check available pack sizes and delivery timelines for your order volume
Frequently Asked Questions
What is Zinc Sulphate Monohydrate 33% used for? It’s used as a micronutrient fertilizer to correct zinc deficiency in soil, improve photosynthesis and carbohydrate metabolism in plants, and support root growth, ultimately enhancing crop yield and quality.
What is the recommended dose of Zinc Sulphate Monohydrate 33%? For soil application, 4–5 kg per acre. For foliar spray, dissolve 3–5 gms in one litre of water, applied in three sprays timed with the crop’s growth stages.
Is Zinc Sulphate Monohydrate 33% compatible with urea? Yes, it is compatible with urea, making it suitable for combined nutrient application programs.
Which crops benefit from Zinc Sulphate Monohydrate 33%? Pulses, cereals, fruits, vegetables, flowers, citrus, sugarbeet, cotton, oilseeds, and medicinal plants, among other field crops.
Who manufactures Zinc Sulphate Monohydrate 33% in Andhra Pradesh? MSNR Enterprises, a micronutrient manufacturing company with its unit in Tiruvuru mandal, NTR district, Andhra Pradesh (near Vijayawada), manufactures and supplies Zinc Sulphate Monohydrate 33% (Powder) to farmers, distributors, and agro-based industries.
Does Zinc Sulphate Monohydrate help prevent any specific crop disease? Yes — it helps prevent Khaira disease in paddy, a zinc-deficiency-linked disorder.