NIGP 335: Fertilizers and Soil Conditioners

NIGP 335 Fertilizers and Soil Conditioners is a Class code that encompasses the supply and application of commercial fertilizers, soil amendments, and related landscape maintenance products that state and local governments procure for parks, athletic fields, landfill reclamation, correctional facilities, and utility infrastructure sites. State and local buyers under this code purchase finished fertilizer products (urea, diammonium phosphate, potash, lime, nitroform) in bulk quantities, specialized application services including hydroseeding and turf maintenance, and integrated pest control combined with fertilization for grounds maintenance. The issuing bodies span state corrections departments, county parks and recreation divisions, municipal utilities, county landfills, and special-purpose authorities managing state parks and airport facilities. Recent opportunities show activity across Kentucky (Department of Corrections procurement for RCC Farm fertilizer), Florida (Walton County pest control, weed control, and fertilizing services on 64.34 acres across ten park and athletic field locations), California (Sacramento County erosion control hydroseeding services at landfills), and Connecticut (City of Meriden stormwater drainage infrastructure maintenance). The code sees repeat demand from state parks systems and correctional industries operations seeking multi-year service contracts with unit pricing.

Representative recent opportunities include the Commonwealth of Kentucky Department of Corrections issuing RFB 758 2600000539-1 (April 2026) for 38-0-0 Nitroform Fertilizer and custom application across nine state parks totaling 278 acres, with bids due April 30, 2026; and Walton County, Florida issuing ITB No. 26-14 (April 2026) for pest control, weed control, and fertilizing services across ten county athletic fields and parks totaling 64.34 acres with monthly maintenance, bids due April 27, 2026. The Commonwealth of Kentucky also issued RFB 758 2600000571-1 (April 2026) for crop fertilizer supplies at the Red Cross Correctional Complex farm, combining bagged and bulk fertilizer with spreading services. Sacramento County's RFB #2026-RFB-0049 (May 2026) for erosion control hydroseeding services required annual pre-wet-season applications at county landfill facilities, with bids due June 11, 2026. Contract terms typically run three to five years with renewal options, pricing is structured as unit costs per acre or per application, and prevailing wage and certified pesticide applicator credentials are standard requirements. Activity concentrates in Florida, California, and Kentucky, with secondary demand in Connecticut and other states managing corrections, parks, and environmental remediation portfolios.