Potassium Sulphate (K2SO4 / SOP 50% K2O) - Soluble Fertilizer Grade 25kg

Soluble Potassium Sulphate K₂SO₄ 50% Fertilizer – High-Purity Taiwan SOP White Powder for Durian & High-Value Orchards (25Kg Bag)

Soluble potassium sulphate Taiwan (Sulphate of Potash - Soluble SOP, chemical formula K₂SO₄) is a premium, fully water-soluble mineral fertilizer directly imported from Taiwan. Certified compliant with international technical standards for Potassium Sulphate Soluble Grade, this high-analysis k2so4 50 fertilizer delivers a minimum of 50.0% water-soluble potash (K₂O) combined with 17.5% elemental sulfur (S). Formulated as a fine, free-flowing potassium sulfate powder, it dissolves rapidly without leaving insoluble residue or clogging drip emitters. As a premier chlorine free fertilizer with chloride strictly restricted to ≤ 1.5%, soluble sop taiwan 25kg is the definitive nutritional choice for chloride-sensitive crops such as durian, citrus, avocado, and greenhouse berries, making it ideal for growers looking to buy potassium sulphate bulk at competitive wholesale prices.

Technical Specification Standards – Soluble Potassium Sulphate Taiwan (Standard Specification)

Nutritional Physiology Mechanism & Key Technological Advantages

• 100% Rapid Dissolution Kinetics (Soluble Grade): Unlike standard granular SOP designed strictly for soil broadcasting that dissolves very slowly, Taiwan Soluble SOP is milled into a fine white powder habit. It dissolves rapidly in cold water without sludge or sediment, protecting drip emitters, inline screen filters, and high-pressure foliar nozzles from clogging.
• Synergistic Dual Nutrition (50% K₂O + 17.5% S): The combination of high-density potassium and bioavailable sulfate sulfur creates an ideal metabolic synergy. Potassium serves as the master enzymatic regulator for sugar synthesis and starch translocation into fruit pulp. Meanwhile, sulfur is an indispensable constituent of essential amino acids (methionine, cysteine), stimulating aromatic enzyme synthesis and enhancing natural fruit aroma.
• Virtually Chloride-Free – Essential for Durian & Sensitive Crops: Muriate of Potash (Potassium Chloride - KCl) contains 45–48% chloride. In crops like durian, chloride accumulation triggers leaf tip necrosis, premature leaf abscission, and watery, tasteless fruit pulp ("wet core" physiological disorder). Taiwan Soluble SOP limits Cl⁻ to ≤ 1.5%, ensuring golden, buttery, dry, and aromatic durian arils.
• Fruit Sizing, Sugar Translocation & Brix Elevation: Enhances fruit pulp density, firms internal pulp flesh, improves skin finish, and prevents fruit cracking. Robust cellular integrity reduces post-harvest weight loss during export transit and prolongs market shelf life.

Practical Applications Across Commercial Cropping Sectors

Engineered for high solubility and broad crop safety, soluble potassium sulphate taiwan serves specialized agricultural systems:

• Commercial Orchards (Durian, Citrus, Mango, Avocado, Longan, Dragon Fruit):
  • Fruit Enlargement to Ripening (20 to 30 days pre-harvest): Drenched or fertigated to drive sugar accumulation, deepen aril color, and maximize °Brix.
  • Foliar Sprays: Provides rapid foliar potassium feeding during peak crop load without causing leaf scorch.
• High-Tech Greenhouse Hydroponics & Fertigation (Melons, Strawberries, Tomatoes): Serves as the primary potassium and sulfur source in concentrated stock B tanks. Delivers essential nutrients with a low salt index without driving up root-zone electrical conductivity (EC) excessively.
• Chloride-Sensitive Cash Crops (Tobacco, Black Pepper, Coffee, Passion Fruit): Improves burning quality and white ash in tobacco; increases bean density and grading size in coffee and black pepper.
• Export Floriculture (Orchids, Roses, Chrysanthemums): Stiffens flower stems, enhances petal pigmentation, and extends post-harvest vase longevity.

Recommended Agronomic Application Rates & Dosing Guidelines

• Soil Drenching / Fertigation for Fruit Orchards:
  • Application Rate: Dissolve 100 – 200 g per tree depending on canopy size and fruit load.
  • Timing: Apply every 10 to 15 days during active fruit bulking up until 20 to 30 days prior to harvest to maximize sugar accumulation and pulp texture.
• Foliar Application (Foliar Spraying):
  • Dilution Rate: Dissolve 25 – 35 g per 16 – 25 Litres of water (equivalent to 250 – 300 g per 200 Litre drum).
  • Application Method: Spray thoroughly over both leaf surfaces during early morning (before 9 AM) or late afternoon when stomata are fully open for rapid absorption.
• Precision Drip Fertigation & Hydroponic Systems:
  • Concentration: Inject into irrigation lines at concentrations of 1.0 – 2.0 g per Litre of irrigation water (100 – 200 g per 100 Litres), calibrated to targeted crop growth stages and electrical conductivity (EC) requirements.

Commercial Supply Policy at THP Chemical

Tan Hung Phu Chemical Co., Ltd. (THP Chemical) is a direct importer and wholesale distributor of Soluble Potassium Sulphate K₂SO₄ 50% Fertilizer (25kg Bag Taiwan) supplying agricultural cooperatives, commercial plantations, and distributors nationwide:

• Certified compliant with technical standards for Potassium Sulphate Soluble Grade, guaranteeing K₂O ≥ 50.0% and S ≥ 17.5%.
• Original factory-sealed 25.00 Kg Net bags (White woven PP bags with blue lettering and inner PE liners) with a fresh 36-month shelf life.
• Complete regulatory and QA documentation: Batch-specific factory Certificate of Analysis (COA), 16-section Material Safety Data Sheet (MSDS), and legal commercial VAT invoices provided with each dispatch.
• Substantial ready-stock inventories maintained in Ho Chi Minh City logistics hubs, supporting rapid palletized dispatch nationwide at competitive wholesale volume pricing.

Frequently Asked Questions (FAQ)

1. Why is Potassium Sulphate (K₂SO₄) mandatory over Potassium Chloride (KCl) for durian?

Durian is extremely sensitive to chloride ions. Potassium chloride (MOP) contains high chloride levels that accumulate in foliage, causing root burn, leaf tip scorch, and watery, tasteless pulp ("wet core"). Potassium sulphate (SOP) is virtually chloride-free, ensuring dry, creamy, golden arils with intense natural flavor.

2. What is the operational difference between Soluble SOP and standard broadcast SOP?

Standard broadcast SOP is manufactured as hard granules that dissolve slowly and contain insoluble binding residues, making it suitable only for direct soil spreading. Taiwan Soluble SOP is milled into an ultra-pure white powder that dissolves rapidly and completely in water, making it safe for precision drip irrigation, greenhouse fertigation, and foliar sprayers without clogging nozzles.

3. Can Taiwan Soluble SOP be mixed with Calcium Nitrate in concentrated stock tanks?

No. Concentrated sulfate ions (SO₄²⁻) in K₂SO₄ will react with calcium ions (Ca²⁺) to precipitate insoluble Calcium Sulfate (gypsum), which blinds filters and clogs drippers. Keep them separated in Stock Tank A and Stock Tank B, blending only upon final diluted injection into the irrigation mainline.

4. Does THP Chemical provide batch COAs and VAT invoices for bulk orders?

Yes. THP Chemical provides factory Certificates of Analysis (COA) corresponding to each production batch, 16-section MSDS sheets, and commercial VAT invoices with every wholesale.