UNSPSC 10171610: Silica potassium fertilizer

A fertilizer that contains potassium as well as phosphoric acid, silicic acid, magnesia and lime. Silica potassium fertilizer helps reduce cold weather damage and physiological stress on plants.

UNSPSC 10171610 Silica potassium fertilizer is a Commodity code under which state and local governments procure mixed fertilizer products—principally ammonium sulfate, MAP, DAP, potash, nitrogen, and micronutrients—for turf and grounds maintenance at parks, recreation facilities, and county-operated agricultural land. The work ranges from straightforward supply-and-delivery contracts for municipal parks departments to integrated turf-care and chemical-application services that bundle fertilizer with weed control, insect management, and lime application. Counties, municipalities, state departments of agriculture, and special-purpose districts in Florida, Georgia, and Illinois issue the majority of recent solicitations, with Pasco County, Pinellas County, Gwinnett County, White County, and the Illinois Department of Agriculture appearing as repeat or concurrent buyers.

Recent activity concentrates in Florida and Georgia. Gwinnett County, Georgia issued an Informal Written Quote (IWQ 130290) in May 2026 for 840 bags of 34-0-0 ammonium sulfate (50-pound bags) delivered across 15 county parks and maintenance locations, with quotes due May 20, 2026. Pasco County, Florida released an Invitation for Bid (IFB-SP-26-074) in May 2026 for herbicides, fertilizers, and pesticides on an as-needed basis across two maintenance facilities, with bids due June 16, 2026 and the contract term running through September 30, 2029 plus two optional one-year extensions. White County, Georgia issued a Request for Proposal in March 2026 for integrated chemical application services at three parks facilities, with sealed proposals due April 2, 2026 and evaluation weighted toward personnel qualifications (20 points), work experience (25 points), and project approach (25 points). The Illinois Department of Agriculture conducted sole-source small-purchase procurements in March 2026 for fertilizer supply and application at two state research farms, with two-day response windows. Palm Beach County, Florida maintains an open pre-qualified vendor list (RPQ-68023003-CR13, due date March 13, 2028) for chemical supply and delivery on project-by-project basis with an anticipated contract value of $900,500 over sixty months, incorporating S/M/WBE preference and five-percent local vendor preference.