TerraSOP

High-Purity Potassium and Sulfur Fertilizer.

About TerraSOP

TerraSOP is a premium-grade, water-soluble potassium sulfate fertilizer designed for fertigation and foliar use. It delivers potassium and sulfur in highly plant-available forms and is ideal for chloride-sensitive crops across open-field and protected environments.

  • Contains 50% water-soluble potassium oxide (K₂O)
  • Delivers 42.5% water-soluble sulfur trioxide (SO₃)
  • Virtually chloride-free – safe for salt-sensitive crops
  • Very low salt index (46) – minimizes root zone salinity risk
  • Excellent solubility and crystalline powder form
  • Improves fruit size, quality, shelf life, and sugar accumulation
  • Ideal under saline conditions and poor water quality
  • Suitable for all fertigation systems and supplementary foliar spraying
  • Compatible with most fertilizers (except those containing calcium)
  • Can be applied throughout the crop cycle where K and S are in demand

Note: Avoid mixing in the same tank with calcium-based products to prevent gypsum precipitation.

Application rates vary based on:

  • Crop type and growth phase
  • Irrigation method (drip, sprinkler, or traditional)
  • Substrate or soil conditions
  • Climatic stress and water quality
  • Nutrient requirements and yield targets
  • Apply as a supplement to root-zone feeding, particularly in K or S deficiency cases
  • Ideal concentrations: 0.5% to 3%, depending on crop sensitivity
  • Apply during cool periods to avoid foliar burn
  • Repeat at 7–14 day intervals as needed
  • Dissolves easily for injection into all irrigation systems
  • Best applied in mid-to-late vegetative and generative stages
  • Apply based on crop K and S uptake curves for optimal effect

Related Products

TerraUP

High-Efficiency Urea Phosphate Fertilizer.

TerraSOP

High-Purity Potassium and Sulfur Fertilizer.

TerraNOP

High-Efficiency Potassium Nitrate Fertilizer.

TerraMKP

High-Purity Phosphorus and Potassium Fertilizer.

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