SITCSection 5
U.S. imports of phosphorus-potassium (pk) fertilizers (SITC 56292) totaled $4.5M in April 2026, traded with 20 countries.
Phosphorus-Potassium (PK) Fertilizers imports of $4.5M in April 2026 ran 58% above the year-to-date monthly average of $2.8M.
Last updated: April 2026 dataPhosphorus-potassium fertilizers, containing no nitrogen component, serve specialized agronomic roles — particularly in late-season applications where added nitrogen would be counterproductive, or in soils already nitrogen-sufficient. The dual-nutrient PK formulation is less common in bulk commodity trade than full NPK blends, making this a narrower import category. Correct classification requires confirming the absence of a meaningful nitrogen fraction, as even trace nitrogen content could shift the product into an NPK heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Classification authorities generally look at whether nitrogen is present as a deliberate fertilizing element rather than a trace impurity. If nitrogen is intentionally added or present at agronomically significant levels, the product may be reclassified as an NPK fertilizer. Importers should obtain a detailed certificate of analysis and seek a binding ruling if the nitrogen content is borderline.
PK fertilizers are commonly used in perennial crop programs, turf management, and late-season applications for root crops and bulbs where nitrogen application must be minimized. They are also used to correct specific soil deficiencies without altering the nitrogen balance, making them a targeted rather than bulk-volume product.
Supplier Network
Get discovered by U.S. importers searching for HS 56292 — Phosphorus-Potassium (PK) Fertilizers. Be the first supplier listed.
Monthly import values over time