Specifications include, but are not limited to: a. Soil Samples: All turf areas shall be initially tested at the start of the turf management season to identify specific treatment needs. Soil tests shall include at a minimum: phosphorus, potassium, pH, and cationic exchange capacity. b. Broadleaf Weed Control-Including dandelion, clover, plantain and knot weed. (Organic product) City applications shall be as needed. c. Crabgrass Control-for pre-emergence crabgrass control (Organic Product) a. No Pre-emergent for SHAWS LANE Areas due to seeding operations. d. Grub Control, scouting will be required by contractor in August/September to determine need for treatment, which shall be least toxic or 25B product preferred. Use of Acelepryn has occurred in the past as it is pollinator-friendly. e. Fertilizers: Only 100% organic fertilizers will be allowed. Fertilizer to be considered organic and compliant with state statute regarding phosphorus should be the following: a. Zero phosphorous b. Contain water insoluble nitrogen (WIN) c. Nitrogen - number of applications for the season – four granular fertilizer applications (Nitrogen at .09 N/1,000 SF 14.5 lbs/1,000 SF each application; 3.6 lbs N total for season) f. High Efficiency Calcitic Limestone 10 lbs/1000 sq ft. g. Core Aerification-core aerify fields with a tractor mounted, pto driven, cam type core aeration machine equipped with ¾ inch side eject tines spaced no more than 3 to 3-1/2 inch centers and a minimum coring depth of 3 inches. Once in the spring immediately following spring athletic schedule (late May-early June) and again in August prior to start of fall sports schedule. Go over fields 2 times in spring aerification. Pulverize the soil cores brought to the surface and drag field with steel mat or other suitable means to work soil into turf. h. Deep Tine - per acre. Based on past-practice, it is expected that 4 separate rounds of treatment/fertilization will be required over a single growing season.
