Petasites tatewakianus foliar fertilizer

The invention relates to the technical field of petasites tatewakianus Kitam. plantantion, and concretely relates to a petasites tatewakianus foliar fertilizer. The petasites tatewakianus foliar fertilizer is composed of, 100-120 parts of a glucose liquid with the concentration of 0.75% , 10-20 parts of a potassium dihydrogen phosphate solution with the concentration of 0.3%, 30-50 parts of a lactic acid bacteria solution obtained by diluting lactic acid bacteria with 100 times of a solvent, 1-1.5 parts of vitamin B12, 10-12 parts of allantoin, 5-10 parts of ammonia water with the concentration of 18%, 2-3.6 parts of ferrous sulphate, 3-5 parts of mycose, 2-2.8 parts of potassium iodate, and 2-25 parts of water. The foliar fertilizer is easily absorbed by petasites tatewakianus leaf surfaces, is accelerated to permeate leaf surfaces, and also can form a layer of a protective film on the petasites tatewakianus leaf surfaces, helps to improve the environment tolerance of petasites tatewakianus plants, and generates substantial yield increase effect after being sprayed on petasites tatewakianus at the flowering stage.