Crop NutritionBy Dr. Ramesh Patel, Chief Agronomist
Manganese Sulphate 30.5% Micronutrient Fertilizer: Restoring Photosynthetic Vigor in High-pH Alkaline Soils
Published on 2026-09-0811 mins readFCO 1985 & ISO 9001:2015 Verified

Executive Summary & Key Takeaways
Overcome manganese lock-up in soils with pH above 7.0. Discover how Manganese Sulphate Monohydrate 30.5% powers water photolysis and enzyme activation in crops.
Table of Contents (Jump to Section)
Among essential trace elements, manganese deficiency is one of the most frequently misdiagnosed nutritional problems in commercial farming. Applying Manganese Sulphate 30.5% micronutrient fertilizer is critical for maintaining Photosystem II water-splitting activity in crops grown on alkaline, high-calcium, or over-limed agricultural soils.
1. The Biochemistry of Manganese in Plant Metabolism
- •Photolysis of Water (Hill Reaction): Manganese forms the reactive core of the Oxygen-Evolving Complex (OEC) in chloroplasts, catalyzing the splitting of water into hydrogen and oxygen.
- •Nitrogen Reduction: Manganese activates nitrate reductase and hydroxylamine reductase, directly converting inorganic soil nitrates into amino acids and proteins.
- •Lignin & Disease Defense: Essential for phenylalanine ammonia-lyase (PAL), reinforcing root cell walls against soil-borne pathogens.
2. Auron Manganese Sulphate Monohydrate 30.5% Specifications
Auron Manganese Sulphate Monohydrate delivers high nutrient density in pale pink, free-flowing crystal powder:- •Manganese Content (Mn): 30.5% min
- •Sulphur Content (S): 17.0% min
- •Heavy Metals (Pb, Cd, As): Strictly < 20 ppm total
- •Water Solubility: 100% complete with no nozzle-clogging sludge.
3. Field Correction Schedule
- •Soil Broadcasting: 8 to 12 kg per acre during soil preparation for Sugarcane, Wheat, Cotton, and Citrus.
- •Foliar Intervention: 2.5 to 3 grams per liter sprayed at first sign of interveinal leaf speckling.
Direct Manufacturer SourcingAuron Fertilizers · Ahmedabad, Gujarat
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