What is good to use foliar fertilizer for flowers?

Flower foliar fertilizer contains nitrogen, phosphorus, potassium, iron, zinc and other elements of nutrients or compound liquid fertilizer is better. Flowers can be sprayed with foliar fertilizer containing nitrogen fertilizer at the vegetative growth stage, which needs to be mixed with water, and the concentration should not exceed 5%; foliar fertilizer containing phosphorus, potassium and boron fertilizer can be sprayed at the reproductive growth stage, such as mixed spraying of 0.2% potassium dihydrogen phosphate and 0.1% boron fertilizer solution.