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Sku: BHSOP1LB
Vendor: Boca Hydro LLC

Boca Hydro Sulfate of Potash 0-0-52

Chloride-Free Water-Soluble Potassium & Sulfur for Bloom, Fruiting, Hydroponics, Fertigation & Soil Growing

Boca Hydro Sulfate of Potash (SOP) 0-0-52 is a high-purity, water-soluble potassium sulfate fertilizer designed to provide a clean source of 52% Soluble Potash (K2O) and 18% Sulfur (S).

Potassium is essential for flowering, fruit development, sugar movement, fruit firmness, root strength, water regulation, stress tolerance, and overall plant performance. Sulfur supports protein formation, enzyme activity, oil production, and healthy plant metabolism.

Unlike potassium chloride, also known as muriate of potash, sulfate of potash is chloride-free, making it a preferred potassium source for sensitive crops, high-value plants, hydroponics, fruit trees, vegetables, ornamentals, and container growing.

0-0-52 Formula 52% Soluble Potash 18% Sulfur Chloride-Free Water Soluble Hydroponics & Soil Fertigation Ready

Ideal for adding potassium and sulfur without adding nitrogen, making it especially useful during bloom, fruiting, finishing, and potassium correction programs.

Product Benefits
High Potassium Formula Provides 52% Soluble Potash to support flowering, fruit development, fruit sizing, sugar movement, firmness, and overall crop quality.
Essential Sulfur Source Supplies 18% sulfur to support amino acid formation, protein synthesis, enzyme activity, oil production, and healthy plant metabolism.
Chloride-Free Nutrition A cleaner potassium source than muriate of potash for chloride-sensitive crops, hydroponics, containers, fruit trees, vegetables, and ornamentals.
No Nitrogen Added Excellent for bloom and fruiting stages when plants need additional potassium without pushing excessive leafy growth.
Supports Fruit Quality Helps improve fruit firmness, sugar content, flavor development, shelf life, color, and overall harvest quality when used as part of a complete feeding program.
Flexible Application Suitable for hydroponic reservoirs, fertigation systems, irrigation injectors, foliar sprays, soil drenches, pots, containers, and direct soil applications.
Ideal for Multiple Growing Systems
Hydroponics Provides a clean potassium and sulfur source for custom hydroponic nutrient programs where chloride-free nutrition is preferred.
Fertigation Suitable for fertilizer injectors and irrigation systems when potassium and sulfur are needed without adding nitrogen.
Soil Growing Can be used in garden beds, raised beds, fruit trees, field crops, and landscape plantings as a potassium and sulfur supplement.
Pots & Containers Useful for container-grown plants that need additional potassium during bloom, fruiting, or periods of heavy nutrient demand.
Foliar Feeding Can be used as a properly diluted foliar spray when fast supplemental potassium and sulfur support is desired.
Fruit Trees & Gardens Suitable for citrus, avocado, mango, tomatoes, peppers, leafy greens, flowering plants, ornamentals, and other potassium-demanding crops.
Sulfate of Potash vs. Muriate of Potash
Sulfate of Potash Provides potassium and sulfur in a chloride-free form. It is preferred for sensitive crops, hydroponics, fertigation, fruit production, and high-performance growing programs.
Muriate of Potash Also called potassium chloride. It is a potassium source but contains chloride, which may not be ideal for chloride-sensitive crops or precision growing systems.
Best Choice for Quality Crops Sulfate of potash is commonly selected when growers want potassium for bloom, fruiting, and crop quality without adding chloride or nitrogen.
Understanding Potassium & Sulfur Nutrition
Potassium Demand Plants often require higher potassium during flowering, fruit set, fruit sizing, and heavy production stages.
Fruit Quality Potassium helps regulate sugar movement, water balance, firmness, color, flavor, and shelf life in many fruiting crops.
Stress Support Adequate potassium nutrition helps plants manage water movement, stomatal function, heat stress, drought stress, and general environmental pressure.
Sulfur Function

Sulfur is important for amino acids, protein formation, enzyme activity, chlorophyll development, and normal plant growth.

Boca Hydro Sulfate of Potash Dosing PDF

Boca Hydro Sulfate of Potash SDS


Stock Solution / Liquid Concentrate
Optional Concentrate Dissolve 500 grams / 1.1 lbs of Boca Hydro Sulfate of Potash in 1 gallon of distilled water. Mix thoroughly. Shake before each use.
Concentrate Reference 1 tsp concentrate ≈ 0.65 g SOP   |   1 tbsp concentrate ≈ 1.95 g SOP   |   1 fl oz concentrate ≈ 3.9 g SOP
Dry Reference

1 tsp dry SOP ≈ 4 g   |   1 tbsp dry SOP ≈ 13 g

 

 

Foliar Spray Dosing
Maintenance Use 2–4 g per gallon or 15–30 mL / 1–2 tbsp of 500 g/gal concentrate per gallon.
Deficiency Repair Use 5–6 g per gallon or 38–45 mL / 2.5–3 tbsp of 500 g/gal concentrate per gallon.
Pots & Containers Dosing
Small Pots Use 1–2 g per gallon or 8–15 mL / 1.5–3 tsp of 500 g/gal concentrate per gallon.
Medium Pots Use 3–5 g per gallon or 23–38 mL / 1.5–2.5 tbsp of 500 g/gal concentrate per gallon.
Large Pots Use 6–8 g per gallon or 45–61 mL / 3–4 tbsp of 500 g/gal concentrate per gallon.
Drench Feeding Dosing
Light Feeding Use 10–15 g per 5 gallons or 76–114 mL / 5–8 tbsp of 500 g/gal concentrate per 5 gallons.
Heavy Feeding Use 20–25 g per 5 gallons or 151–189 mL / 10–13 tbsp of 500 g/gal concentrate per 5 gallons.
Hydroponic Potassium Targets
50 ppm K Use 0.44 g per gallon or 3.3 mL / about 2/3 tsp of 500 g/gal concentrate per gallon.
100 ppm K Use 0.88 g per gallon or 6.7 mL / about 1 1/3 tsp of 500 g/gal concentrate per gallon.
150 ppm K Use 1.3 g per gallon or 10 mL / about 2 tsp of 500 g/gal concentrate per gallon.
Fertigation / Injector Use at 1:100
50 ppm K Add 44 g dry SOP or 333 mL / 11.3 fl oz of 500 g/gal concentrate per gallon of injector stock. Inject at 1:100.
100 ppm K Add 88 g dry SOP or 666 mL / 22.5 fl oz of 500 g/gal concentrate per gallon of injector stock. Inject at 1:100.
150 ppm K Add 132 g dry SOP or 1,000 mL / 33.8 fl oz of 500 g/gal concentrate per gallon of injector stock. Inject at 1:100.
Direct Soil Application
Maintenance Apply 1–2 lbs per 1,000 sq ft. Water in thoroughly after application.
Heavy Feeding Apply 3–4 lbs per 1,000 sq ft. Use pre-plant or as a top-dressing during bloom and fruiting. Water in thoroughly after application.
Guaranteed Analysis
Soluble Potash (K2O) 52%
Sulfur (S) 18%
Derived From Potassium Sulfate
CAS No. 7778-80-5
NPK 0-0-52
Grower Tip: Sulfate of potash is an excellent potassium source when plants need bloom, fruiting, and quality support without additional nitrogen. It is especially useful for citrus, tomatoes, fruit trees, flowering crops, vegetables, and chloride-sensitive plants.
Mixing Note: Potassium sulfate dissolves more slowly than nitrate fertilizers. Use warm water if needed, mix thoroughly, and shake stock solution before use. Keep concentrated SOP stock separate from concentrated calcium products. They may be combined after dilution in the final irrigation water.