Hey greendoc Question for yu, I'm looking at the rate per 1,000 to apply the iron. LAWNS and TURF Use 1 pint (16 fl. oz.) per 1,000 sq. ft. Apply in a sufficient volume of water to thoroughly wet the foliage and runoff in the root zone. Hose attached sprayers provide a convenient method to treat lawns. So for my 4 gallon backpack that's 1/2 gallon which isn't a problem, just wondering now because of the amount and it mixing with the Clearys which is 4 oz/gallon and if they should be sprayed separately or will it mix and work sprayed both at once?