For most tropicals specially in Florida, Nitrogen is the key. For those who have a small orchard the best way is to apply nitrogen in the form of urea 46-0-0 at $18-$20 for 50 lbs is a great price to Nitrogen ratio. Buy low biuret spray grade Urea. Mix with water and apply it in drench or with the irrigation system. The same with potassium nitrate 10-0-46 spray grade can be mixed with water and applied to the ground. Minos can be applied foliar or in the mix. Most in Florida don't need phosphorus, depending of your solid. Don't rule out these very economical ways of applying fertilizer
Carlos, Where do you pick that up at? would love the 10-0-46