99.4% Agricultural Grade Potassium Nitrate KNO₃ (Granules)

99.4% granular potassium nitrate (99.4% KNO₃) with uniform granule size, K₂O ≥46% and low chloride, for mechanical spreading, base and top dressing, and compound fertilizer production.

High-efficiency nitro-potassium nitrate fertilizer for agriculture, the best choice for improving quality and increasing production

Potassium nitrate is a two-in-one fertilizer: it delivers nitrate nitrogen that crops absorb directly, together with water-soluble potassium. Supplied as uniform granules, our high tower product is easy to handle and spread, which makes it a practical choice for intensive farming where even application and steady crop quality matter.

Why choose granular agricultural potassium nitrate?

Granular KNO₃ is made for field-scale use. The granules are uniform and free-flowing and resist lumping, so the product spreads evenly with fertilizer machinery.

Core advantages

  • Efficient nutrient combination: nitrate nitrogen for quick crop uptake, plus potassium that supports fruit sizing and colour development.
  • Excellent physical properties: uniform, free-flowing granules that store well and suit mechanical application.
  • Wide applicability: suitable for many crops and soils, and a good potassium source where chloride must be kept low.
  • Environmentally friendly and safe: low chloride (≤0.2%) and low water-insoluble matter (≤0.1%) leave little residue in the soil.

The core advantages of our products

Outstanding particle physical properties

  • Consistent granule size for even spreading with fertilizer machinery
  • Resists caking, which keeps storage and handling simple

Reliable product quality

  • Produced to the Chinese national standard for agricultural potassium nitrate (GB/T 20784-2013)
  • High purity (KNO₃ ≥99.4%) and a stable nutrient content from batch to batch

Professional agricultural chemical service support

  • Our agrochemical team can suggest how to apply the product for your crops and soil conditions.

Technical parameters

ItemStandard Indicator(%)Test Result (%)
Potassium Nitrate Content≥99.4%99.45
Potassium Oxide (K₂O) Content≥46.0046.18
Nitrogen (N) Content≥13.5013.53
Chloride (as Cl) Content≤ 0.20.045
Moisture (H₂O)≤ 0.50.089
Water Insoluble Matter (%)≤ 0.10.032
pH值–6.5

Main application fields and applicable crops

  • Field crops: tobacco, sugar beet and maize benefit from better yield and quality.
  • Fruit trees: grapes, citrus, apples and similar fruit trees; supports fruit sizing, sweetness and colour.
  • Vegetables: fruiting vegetables such as tomatoes and cucumbers, melons, and root vegetables such as potatoes and radishes.
  • Flowers: supports flowering and improves cut-flower quality. Because chloride is held at ≤0.2%, it is an excellent potassium source for chloride-sensitive crops such as tobacco, citrus and potatoes.

Packaging, Storage and Safety Instructions

  • Packaging: polyethylene inner liner with a polypropylene woven outer bag, 25 kg or 50 kg net per bag; custom packing available on request.
  • Storage: keep in a cool, dry, well-ventilated warehouse and protect from moisture.
  • Safe operation: potassium nitrate is an oxidizer. Keep it away from ignition and heat sources and from flammable materials, and avoid contact with reducing agents and reactive metal powders.
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