Potassium Nitrate Granular 99.7% - N-K Fertilizer for Fruits & Flowers, Bulk OEM Supply

Model: Purity: 98%

Item specifics

Color: White

Other Name: Potassium nitrate

Chemical formula: KNO3

Molecular Weight: 101.10

CAS No.: 7757-79-1

Density: （water=1）：2.11

Appearance: White granular

Water soluble: Soluble in cold water, methanol, ethanol, liquid a

Melting point: 334 ℃

Packing: PP+PE 25/50/1000/1250kg

Review

Description

What is Potassium Nitrate Granular?

Potassium Nitrate Granular (KNO₃) is a premium chlorine-free nitrogen-potassium compound fertilizer, engineered for chloride-sensitive crops and precision agriculture. Containing 46.6% potassium oxide (K₂O) and 13.8% nitrate nitrogen (N), its homogeneous 2-4mm granules ensure controlled nutrient release, mechanical spreading compatibility, and zero chloride-induced root burn.

Core Features

1. High Purity & Dual Nutrients

· K₂O 46.6% + N 13.8%：Nitrate nitrogen enables rapid absorption (50% faster than urea), while potassium enhances sugar accumulation and stress resistance.

·Zero Chloride (<1.5%)：Safe for chlorine-sensitive crops (e.g., strawberries, tobacco, citrus), increasing yield by 15-20%

2. Optimized Granular Structure

· Granule Size：2-4mm spherical granules Anti-dust & anti-caking, suitable for mechanical spreaders

· Crush Strength： ≥40N (2× industry standard)Withstands bulk shipping and stacking

· Solubility：100% dissolution in 90s (25°C) No residue in drip irrigation systems

Stability & Functionality

1. Physical Stability for Global Supply

· Moisture Resistance：Hygroscopicity ≤0.3% (vs. industry average 1.5%), ensuring zero caking in humid climates (e.g., Southeast Asia)

· Thermal Stability：Decomposition temperature >334°C, safe for tropical storage.

2. Agronomic Functionality

· Nitrate-Potassium Synergy：Nitrogen promotes leaf growth, while potassium enhances fruit expansion and sugar synthesis (e.g., apple Brix +1-2°).

·Drip Irrigation Optimization：Low salinity (EC<1.5 dS/m) prevents emitter clogging, increasing nutrient use efficiency by 30%

L-Lysine Powder：

Items	Standard
Purity	98% MIN
Moisture	0.1%MAX
Chloride(As Cl)	0.01%-0.03%
Sulphate(As SO₄²⁻ )	0.01%MAX
Insoluble matter in water	0.01%MAX
Hygroscopicity	0.25%MAX
Nitrogen(in Nitrate)	13%MIN
K2O	45%MIN