Rooting agent for balcony vegetable planting as well as preparation method and application of rooting agent

The invention provides a balcony vegetable planting rooting agent and a preparation method and application thereof.The preparation method includes the steps that firstly, camphor leaves, selaginella tamariscina and enteromorpha which are fully dried are smashed and mixed to obtain mixed powder, then the mixed powder is added into water and stirred to be uniform to obtain slurry I, and enzymolysis and centrifugation are conducted to obtain enzymatic hydrolysate; taking soybean meal as a raw material, adding the soybean meal into water, uniformly mixing to obtain slurry II, sterilizing, inoculating a mixed bacterial agent of candida utilis, bacillus subtilis and bacillus licheniformis, fermenting, and centrifuging to obtain fermentation liquor; and uniformly stirring and mixing the enzymatic hydrolysate and the fermentation liquor to obtain a mixed liquor, finally adding alkyl glycoside into the mixed liquor, stirring until the alkyl glycoside is completely dissolved, finally adding organic bentonite, coco coir