Turf Nectar AC 15-0-0 is intended to be used as a supplement to a regular fertilization program, so it will be applied at lower rates than liquid fertilizers which are designed to be the primary source of nutrients.
You can water the same day after applying Turf Nectar AC 15-0-0 with 6% Iron.
Per the product label for Turf Nectar AC 15-0-0 with 6% Iron:
"If product is being mixed with pesticides and/or spray adjuvants, follow all precautionary statements on the accompanying product(s) labeling...
Ele-Max Turf Nectar AC may not be compatible with some liquid fertilizer formulations. A pre-mix 'jar test' is recommended prior to mixing with liquid fertilizer to check compatibility..."
"Ele-Max Turf Nectar AC should be introduced in the following sequence: 1. Water 2. Ele-Max Turf Nectar AC 3. Other Fertilizers or pesticides."
Yes, you can mix Turf Nectar AC 15-0-0 with 6% Iron, but should be mixed in the tank in the following order per the product label: water, turf Nectar, then fertilizers or pesticides.
The 2.5 gallon container (320 fl oz) of Turf Nectar AC 15-0-0 with 6% Iron will make 40 to 160 gallons of solution depending on the rate it is applied. For Centipede Lawns to apply at 2 fl oz to 8 fl oz per 1,000 sq ft with sufficient water for good coverage. In order to treat 2 acres with Turf Nectar AC 15-0-0 with 6% Iron, you would need to following depending on the rate you apply:
LOW RATE (2 fl oz per 1,000 sq feet: 174 fl oz)
HIGH RATE (8 fl oz per 1,000 sq ft: 696 fl oz)
It is recommended three to five applications per growing season usually produces best results.