Mono Potassium Phosphate (MKP 0-52-34 / KH2PO4) - Water Soluble Fertilizer

MKP 0-52-34 Tech Grade 99% Fertilizer – High-Purity Monopotassium Phosphate for Hydroponics & Shoot Flush Suppression (25Kg Bag)

MKP tech grade (chemical designation: Monopotassium phosphate 99, molecular formula KH₂PO₄) is an industrial-strength, technical-grade mineral fertilizer directly imported from China. Compliant with Mono Potassium Phosphate Tech Grade specifications, this fully soluble MKP crystal provides an ultra-concentrated nitrogen-free nutrient profile of 52.0% phosphorus pentoxide (P₂O₅) and 34.0% potassium oxide (K₂O). Characterized by high solubility (≤ 0.1% water insoluble matter), ultra-low chloride (≤ 0.02%), and a mildly acidic buffering capacity (pH 4.3 – 4.7), MKP 0 52 34 technical grade serves as a critical stock component in automated commercial greenhouse fertigation and an effective foliar agent for vegetative shoot suppression and floral budding induction. It is the premier choice for agricultural enterprises and distributors seeking to procure KH2PO4 bulk China or buy monopotassium phosphate 25kg bags at competitive wholesale prices.

Technical Specification Standards – Monopotassium Phosphate Tech Grade (Standard Specifications)

Nutritional Physiology Mechanism & Key Technological Advantages

• Exceptional Technical-Grade Purity (≥ 99.0%): Refined through precision crystallization, MKP Tech Grade contains minimal heavy metal traces and insoluble residue (≤ 0.1%). It dissolves rapidly and cleanly in cold water, forming a sparkling clear solution that protects automated drip emitters, micro-sprinklers, and inline mesh filters from clogging.
• Nitrogen-Free 0-52-34 Ratio for Flush Suppression: Delivering 52% phosphate paired with 34% potash without nitrogen, MKP alters plant C:N ratios and downregulates vegetative gibberellin synthesis. Applied foliarly, it arrests unwanted vegetative shoot flushing, rapidly matures expanding leaves into dark green foliage, and directs metabolic carbohydrates toward flower bud differentiation and uniform bloom emergence.
• Mildly Acidic Buffering Capacity (pH 4.3 – 4.7): Upon dissolution, monopotassium phosphate creates an optimal mildly acidic micro-environment. This enhances stomatal cuticle permeability for foliar absorption and prevents the precipitation of chelated micronutrients (Fe, Zn, Mn, Cu) in concentrated stock fertilizer solutions.
• Chloride-Free & Low Salt Index: Containing less than 0.02% chloride and zero sodium, MKP Tech Grade eliminates root zone osmotic salinity stress and prevents leaf margin necrosis. It is safe for chloride-sensitive crops such as durian, citrus, berries, and greenhouse vegetables.

Multi-Sector Practical Applications in Agriculture & Industry

Engineered for high-efficiency plant feeding and chemical consistency, monopotassium phosphate 99 serves diverse technological processes:

• Commercial Hydroponics & High-Tech Fertigation:
  • A primary water-soluble phosphorus (H₂PO₄⁻) and potassium (K⁺) source in closed-loop automated greenhouse fertigation for rockmelons, strawberries, and hydroponic vine tomatoes.
  • Controls vegetative shoot flushes in tropical fruit orchards (durian, mango, citrus), stopping nutrient diversion away from developing fruitlets and preventing physiological fruit drop.
  • Stimulates off-season floral induction, ensuring robust, synchronous panicle emergence and improved fruit set.
  • Late-stage fruit bulking: Accelerates sugar (°Brix) accumulation, promotes vibrant skin pigmentation, and enhances post-harvest shelf firmness.
• Industrial & Technical Processing:
  • Functions as a dependable chemical buffering agent that stabilizes pH in pharmaceutical manufacturing and industrial surface finishing.
  • Serves as an essential mineral nutrient source in biological fermentation and commercial yeast culturing.
  • Acts as a specialized flame-retardant additive and fluxing agent in the production of technical optical ceramics.

Recommended Application Rates, Safe Handling & Storage Protocols

• Foliar Application for Shoot Flush Suppression & Floral Induction:
  • Dilution Rate: Dissolve 80 – 100 g per 16 – 25 Litres of water (equivalent to 1.0 – 2.0 kg per 200 Litre drum).
  • Application Timing: Thoroughly spray foliage when vegetative flushes first emerge or when leaves transition to mature foliage prior to floral induction. Spray during early morning or late afternoon to maximize stomatal uptake.
• Drip Fertigation & Automated Greenhouse Hydroponics:
  • Stock Dosing: Inject into stock tanks at rates of 0.5 – 1.5 g per Litre of irrigation water (50 – 150 g per 100 Litres), tailored to targeted crop growth stages.
  • Tank Mixing Rule: MKP can be tank-mixed with most soluble fertilizers (KNO₃, Urea, MgSO₄), but must never be mixed directly in concentrated form with calcium salts (e.g., Calcium Nitrate) in the same stock tank to avoid insoluble Calcium Phosphate precipitation.
• Warehouse Storage Protocol:
  • Store in a cool, dry, well-ventilated dedicated warehouse on elevated pallets, away from direct sunlight and high ambient humidity.
  • Reseal the inner PE moisture-barrier liner tightly after partial opening to prevent atmospheric moisture absorption and surface caking.

Commercial Supply Policy at THP Chemical

Tan Hung Phu Chemical Co., Ltd. (THP Chemical) is a direct importer and wholesale distributor of MKP 0-52-34 Tech Grade 99% Fertilizer (25kg Bag China) supplying agricultural cooperatives, commercial plantations, and industrial facilities nationwide:

• Certified compliant with Mono Potassium Phosphate Tech Grade specifications, guaranteeing assay ≥ 99.0%, P₂O₅ ≥ 52.0%, and K₂O ≥ 34.0%.
• Original factory-sealed 25.00 Kg Net woven PP bags with moisture-proof inner PE liners and a fresh 36-month shelf life.
• Comprehensive compliance documentation: Batch-specific factory Certificate of Analysis (COA), 16-section Material Safety Data Sheet (MSDS), and legal VAT invoices provided with each dispatch.
• Substantial inventories maintained at logistics hubs in Ho Chi Minh City and regional distribution centers, supporting rapid palletized dispatch nationwide at competitive wholesale pricing.

Frequently Asked Questions (FAQ)

1. What differentiates MKP Tech Grade 99% from standard agricultural MKP fertilizers?

Standard agricultural MKP fertilizers feature purities between 95% and 98% with higher allowable levels of insolubles and chloride traces. MKP Tech Grade undergoes rigorous recrystallization, delivering minimum 99.0% assay, ultra-low chloride (≤ 0.02%), and crystal-clear dissolution (≤ 0.1% insolubles) suitable for automated drip systems and sensitive hydroponic crops.

2. Why is MKP 0-52-34 effective for durian shoot flush suppression without scorching foliage?

MKP provides 52% phosphate and 34% potash with zero nitrogen. This nutrient profile suppresses vegetative shoot flushes by downregulating gibberellin synthesis and hardening young leaves. Because it is virtually chloride-free and low-salt, it does not cause leaf margin scorch when applied at recommended rates.

3. Can MKP Tech Grade be mixed with Calcium Nitrate in the same concentrated stock tank?

No. Concentrated phosphate ions (H₂PO₄⁻) react with calcium ions (Ca²⁺) to form insoluble Calcium Phosphate precipitate, causing dripper blockages. Keep them in separate A and B stock tanks and blend only upon final diluted injection into irrigation lines.

4. Does THP Chemical provide batch COAs and VAT invoices for 25kg bag orders?

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