NPK fertilizers
NPK 13-40-13 Water Soluble — Bulk Supplier Grade
Price quote on request · Bulk from 300 MT FOB/CFR/CIF
Key parameters — NPK 13-40-13 Water Soluble
Full specification — NPK 13-40-13 Water Soluble
- FOB
- CFR
- CIF
- Fertigation
- Greenhouse
- Transplant
- Flowering
Product overview — NPK 13-40-13 Water Soluble
Greenhouse operators and fertigation buyers request NPK 13-40-13 bulk supplier quotes when stocking high-phosphorus soluble grade for transplant and flowering programmes. NPK 13-40-13 water soluble is a phosphorus-forward crystalline blend formulated for precision fertigation where root development, transplant recovery and flowering transition demand concentrated phosphate without the heavy nitrogen load of balanced grades. At 66% total nutrients with 40% P2O5, it delivers more phosphorus per dissolved kilogram than 10-30-20 or 12-36-12 alternatives while retaining enough nitrogen and potassium to sustain canopy function through the reproductive shift.
The grade dissolves to 99% minimum at field-use concentrations, producing clear stock solutions compatible with drip emitters, venturi injectors and pivot nozzles. Moisture stays below 0.5% for stable bag storage in humid export corridors. Typical buyers include greenhouse operators in Almería and Antalya running sequential fertigation programmes, potato and onion growers targeting tuber and bulb initiation, nursery propagators hardening seedlings before field transplant, and liquid-fertilizer blenders building flowering-stage concentrates for distributor networks across the Gulf and South Asia.
Origins include Black Sea and MENA soluble-NPK mills with ISO-certified production. HS classification 3105.20. Pair with calcium nitrate in separate A/B tanks when both macronutrients are required in the same weekly cycle — never combine concentrated calcium and phosphate in one stock solution.
Full product details
Loading ports & logistics — NPK 13-40-13 Water Soluble
High-phosphate soluble grade is hygroscopic — ships exclusively in 25 kg double PE-lined bags or 1,000 kg FIBC with moisture-barrier liners, palletised into dry 20 ft and 40 ft containers from 300 MT. No bulk hold loading. Climate-controlled warehouse staging at origin prevents caking before container seal; buyers should unload into covered storage within 48 hours of discharge.
FOB from Black Sea and MENA soluble-NPK mills with dedicated P-forward bagging lines. CFR/CIF to transplant and flowering programmes — Antalya, Alexandria, Mumbai, Colombo — with container stuffing 200–350 MT/day. Confirm the 13-40-13 label at enquiry to lock mill allocation. Lead time 10–20 days after contract confirmation.
Packaging & documentation — NPK 13-40-13 Water Soluble
Standard export pack: 25 kg PE-lined PP woven bags, palletized and stretch-wrapped for container loading. One-tonne FIBC big bags available for inland distribution hubs and large greenhouse complexes. Each lot ships with mill certificate of analysis (N, P2O5, K2O, moisture, water solubility), commercial invoice, packing list and full bill of lading set. SGS or equivalent pre-shipment inspection on request. Store bags in a dry, covered warehouse — soluble NPK absorbs atmospheric moisture faster than granular compounds.
FAQ — NPK 13-40-13 Water Soluble
When should fertigation programmes switch to NPK 13-40-13?
Apply 13-40-13 during transplant establishment, tuber initiation in potato and root-crop programmes, and the two weeks before first flower in tomato, pepper and melon. The 40% P2O5 ratio drives root branching and energy transfer into reproductive organs without the excess nitrogen that delays flowering.
How does NPK 13-40-13 compare with MKP 0-52-34 for phosphorus delivery?
MKP supplies phosphorus and potassium with zero nitrogen — ideal when vegetative growth must stop entirely. NPK 13-40-13 retains 13% N and 13% K2O alongside high phosphate, keeping a modest macronutrient balance during early bloom when plants still need limited nitrogen for canopy maintenance. Choose 13-40-13 when a single tank pass must cover all three elements at the flowering transition.
What tank concentration is safe for NPK 13-40-13 in drip systems?
Stock solutions at 10–15% w/v dissolve cleanly at 20°C with agitation; field injection dilutes to 0.1–0.3% at the emitter. High-phosphate grades can precipitate if mixed with hard irrigation water above 300 ppm calcium — test a small batch or use softened water in the stock tank. Flush lines after each fertigation cycle to prevent crystal buildup in low-flow emitters.
