Growth-promoting lily nutrient solution for soilless cultivation and preparation method thereof

The invention discloses a growth-promoting lily nutrient solution for soilless cultivation and a preparation method thereof. The lily nutrient solution is prepared from a component A, a component B and a component C according to the weight ratio of (2 to 8):(30 to 40):(55 to 65), wherein in parts by weight, the component A is prepared from 0.5-1.5 parts of ACC deaminase, 1-2 parts of IAA synthetase, 4-6 parts of mercapto protease, 3-5 parts of glucoamylase, 0.8-1.2 parts of oxidized glutathione and 100-230 parts of pure water, the component B is prepared from 25-45 parts of humic acid urea, 10-16 parts of disodium octaborate tetrahydrate, 2-5 parts of monopotassium phosphate, 2-5 parts of sodium selenite and 5-8 parts of a compound growth regulator, and the component C is prepared from 20-40 parts of modified plant ash, 6-10 parts of calcium nitrate, 2-5 parts of magnesium sulfate, 2-5 parts of ammonium phosphate, 2-5 parts of monopotassium phosphate, 3-8 parts of sodium iron EDTA, 4-5parts of tryptophan, 0.1