Premium Organic-Certified Potassium Sulfate for Sustainable Agriculture

Haifa SOP Bio delivers chloride-free potassium and sulfur in a fully water-soluble formula certified for organic production under EU regulations (EC) 834/2007 and (EC) 889/2008. With 52% K₂O and 18% sulfur, this premium-grade potassium sulfate provides essential nutrients that enhance crop quality, improve stress tolerance, and maximize storage life—all while meeting the strict standards required for certified organic operations.

Key Benefits

• Organic Certification: Approved for use in organic agriculture and horticulture under EU Directives, making it ideal for certified organic growers and transitioning operations
• Chloride-Free Potassium: Sulfate form prevents chloride accumulation and salt stress, particularly important for chloride-sensitive crops like berries, tobacco, potatoes, and tree fruits
• Dual Nutrient Action: Supplies both potassium (43% K, 52% K₂O) and sulfur (18% S) in plant-available forms for synergistic crop benefits
• Complete Solubility: Dissolves fully in water for fertigation, drip irrigation, foliar application, and hydroponic systems without clogging or residue
• Quality Enhancement: Increases dry matter content, sugar levels, firmness, color development, and post-harvest shelf life
• Stress Resistance: Strengthens cell walls, improves drought tolerance, and enhances natural disease resistance through optimized potassium nutrition

Technical Specifications

Analysis: 0-0-52 (N-P₂O₅-K₂O)
Form: Water-soluble crystalline powder
Chloride content: <2% (chloride-free grade)
Package size: 55 lb. bag

Application Guidelines

Fertigation/Drip Irrigation: Apply 10-30 lbs per acre per week during fruit development and maturation stages. Dissolve completely before injection. Adjust rates based on soil tests and crop demand.

Foliar Application: Mix 3-5 lbs per 100 gallons of water. Apply during fruit sizing and ripening to enhance quality parameters. Add a non-ionic surfactant for improved uptake.

Soil Application: Broadcast or band 50-150 lbs per acre depending on soil test results and crop requirements. Incorporate before planting or side-dress during the growing season.

Hydroponics: Maintain 200-300 ppm K in nutrient solution for most crops. Adjust based on crop type, growth stage, and production goals. Monitor EC after addition.

Note: Do not tank-mix with calcium-based fertilizers to avoid precipitation. Compatible with most other water-soluble fertilizers.

Why Potassium Sulfate for Organic Production?

Potassium is essential for enzyme activation, protein synthesis, water regulation, and carbohydrate translocation. It directly influences crop quality attributes including sugar content, acidity, firmness, color, and storage potential. Sulfur supports protein formation, enzyme function, and chlorophyll production while enhancing nitrogen use efficiency.

Unlike potassium chloride (muriate of potash), potassium sulfate provides potassium without chloride, preventing salt accumulation and chloride toxicity in sensitive crops. The sulfate form also supplies valuable sulfur, making SOP Bio a dual-purpose nutrient source that supports both yield and quality.

Ideal For

Certified organic operations, chloride-sensitive crops (berries, grapes, tobacco, potatoes, citrus, stone fruits), greenhouse production, hydroponic systems, high-value vegetables, and any application where premium quality and chloride-free nutrition are priorities.

Haifa SOP Bio combines the agronomic performance professional growers demand with the organic certification sustainable agriculture requires.

• Specification Sheet
• LABEL
• SDS
• OMRI CERTIFICATE