| Composition | Content |
| Matter insoluble in water per cent by weight, maximum | 1.0 |
| Zinc (as Zn) per cent by weight, minimum | 21.0 |
| Lead (as Pb) per cent by weight, maximum | 0.003 |
| Copper (as Cu) per cent by weight, maximum | 0.1 |
| Magnesium (as Mg) per cent by weight, maximum | 0.5 |
| pH not less than | 4.0 |
| Sulphur (as S) per cent by weight, minimum | 10.0 |
NAPTA Zinc Sulphate 21% is a high-purity, 100% water-soluble crystalline fertilizer. It delivers fast-acting Zinc (Zn) and Sulphur (S) to correct soil deficiencies instantly, boosting plant metabolism and crop vigor. Highly compatible and easy to apply, it is the ultimate formula for superior yields and healthier harvests.
➤ Contains 21% Zinc (Zn) – essential micronutrient for plant growth
➤ Also provides 10–11% Sulphur (S) – supports protein synthesis and enzyme activity
➤ Corrects zinc deficiency in all major crops: cereals, pulses, oilseeds, fruits, and vegetables
➤ Boosts Growth Hormones: Essential for Auxin production, driving rapid stem elongation and healthy leaf expansion.
➤ Restores Leaf Vitality: Quickly corrects "Little Leaf" and interveinal yellowing, ensuring maximum chlorophyll for photosynthesis.
➤ Enhances Grain Filling: Promotes superior starch production and seed development for heavier, high-value harvests.
➤ Optimizes Metabolism: Regulates nitrogen and sugar formation, ensuring the plant uses nutrients with maximum efficiency.
➤ Toughens Plant Defense: Strengthens cellular resistance to help crops withstand drought, salinity, and disease.
Soil application: Apply 10-15kg of NAPTA ZINC SULPHATE per acre at the time of sowing/transplantation (or) after 15 days.
5kg