21-11-16+3MgO+4SO₃+TE

21-11-16+3MgO+4SO3+TE is a 100% water-soluble NPK fertilizer enriched with magnesium and sulfur to support vigorous vegetative growth, active photosynthesis, balanced nutrition, and improved crop performance throughout the growing season.

Guaranteed Analysis %W/W
Total Nitrogen (N): 21
Water Soluble Phosphorus Pentoxide (P2O5): 11
Water Soluble Potassium Oxide (K2O): 16
Water Soluble Magnesium Oxide (MgO): 3
Water Soluble Sulphur Trioxide (SO3): 4
Water Soluble Zinc (Zn) EDTA Chelated: 0,05
Water Soluble Iron (Fe) EDTA Chelated: 0,04
Water Soluble Manganese (Mn) EDTA Chelated: 0,04
Water Soluble Copper (Cu) EDTA Chelated: 0,01
Water Soluble Boron (B): 0,01

21-11-16+3MgO+4SO3+TE is a professionally balanced, 100% water-soluble NPK fertilizer developed to support strong vegetative growth, active photosynthesis, and stable crop development throughout the growing season. Its formulation combines nitrogen, phosphorus, potassium, magnesium, sulfur, and essential trace elements to provide a complete nutritional program for high-performance agricultural production.

The elevated nitrogen content promotes vigorous vegetative growth, healthy leaf expansion, and strong canopy formation. Nitrogen is essential for chlorophyll production and protein synthesis, helping plants maintain active photosynthesis and sustained growth during demanding developmental stages. The phosphorus component supports root activity, energy transfer, and early plant establishment, while potassium contributes to water regulation, nutrient transport, and overall plant strength.

One of the key advantages of this formulation is the addition of magnesium oxide (MgO). Magnesium is the central element in chlorophyll molecules and plays a direct role in photosynthesis and energy production. Adequate magnesium nutrition supports darker green foliage, improved carbohydrate formation, and stronger metabolic activity. Sulfur trioxide (SO3) further enhances nutrient efficiency by supporting enzyme activity, amino acid formation, and nitrogen utilization within the plant.

The added trace elements (TE) help prevent micronutrient deficiencies that may limit growth and productivity under intensive cultivation systems. These micronutrients support balanced physiological development, improve chlorophyll stability, and contribute to healthier, more uniform crop performance.

Because 21-11-16+3MgO+4SO3+TE is completely water-soluble, it dissolves rapidly and evenly in water without leaving residue. It is suitable for fertigation systems, drip irrigation, foliar feeding, and hydroponic cultivation. Its fast nutrient availability allows crops to respond quickly during periods of active vegetative growth and transition into reproductive development.

This formulation is especially useful in crops requiring balanced nutrition combined with enhanced magnesium support for sustained photosynthetic activity and plant vigor.

Crops Commonly Using 21-11-16+3MgO+4SO3+TE Fertilizer

This fertilizer is widely used in:

  • Fruit crops: citrus, grape, banana, apple, pear
  • Vegetable crops: tomato, pepper, cucumber, melon, lettuce
  • Field crops: maize, sunflower, soybean, wheat
  • Greenhouse and protected cultivation crops
  • Ornamental plants and nursery production

21-11-16+3MgO+4SO3+TE is an ideal solution for growers aiming to maintain strong vegetative growth, improve nutrient efficiency, support photosynthesis, and achieve consistent crop quality and yield performance.

Application Recommendations

  • Soil Application: 2-4 kg/da. Adjust the rate based on the specific needs of the crop and growth stage.
  • Foliar Application: 200-400 g/100L. Apply 3 times every 7-10 days during the active growth phase.
  • Best Practices:
    • Use during early mornings or late afternoons for foliar applications to maximize absorption.
    • Avoid mixing with highly alkaline fertilizers to prevent precipitation.

Packaging Options

Available in:

  • 1 kg and 5 kg packages for small-scale and home gardening.
  • 25 kg packages for large-scale farming operations.

General Storage Guidelines

  • Protect the fertilizer from frost, direct sunlight, and moisture.
  • Store loose materials indoors rather than in open areas. Keep doors closed and cover any heaped materials.
  • Since the product is moisture-sensitive, ensure protection from rain and standing water.
  • Follow hazardous material labels on the packaging where applicable.
  • Do not stack more than two pallets. Store only in the original packaging and use the product as soon as possible after opening.

Storage Temperature

  • Avoid exposure to frost and extreme heat.
  • Prevent significant temperature fluctuations during storage.