NOVELTY - A fly ash promoting vegetables fertilizer comprises (wt.%) urea monoammonium phosphate (15-19), potassium sulfate (2-4), potassium dihydrogen phosphate (4-6), aggregate (4-7) with diameter 10-20 nm, nano fly ash (15-25), humic acid (10-15), indole acetic acid (3-5), water (5-10), chitosan (1-5), borax (3-7), zinc chloride (0.5-1), sodium (0.05-0.3), manganese sulfate (0.05-0.1), sodium dodecyl benzenesulfonate (0.05-0.3), ferrous sulfate (0.8-2), magnesium sulfate (0.03-0.8), copper sulfate (0.01-0.05), dimethylsulfoxide (0.2-2), field crops straw (5-8), and livestock manure (4-6).    USE - Fly ash promoting vegetables fertilizer.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of fertilizer comprising putting crushed field crop straw as powder, putting livestock manure and crop straw powder, stirring uniformly, putting wet material in fermentation tank, covering, heating for 60 hours at 50-70 degrees C, and after 24 hours, finishing fermentation; filtering fermentation product and urea, monoammonium phosphate, potassium sulfate, monopotassium phosphate, nano fly ash, humic acid, lignin, acetic acid, water, chitosan, borax, zinc chloride, sodium, manganese sulfate, sodium dodecyl benzene sulfonate, ferrous sulfate, magnesium sulfate, copper sulfate, and dimethyl sulfoxide into reaction kettle, dissolving with water, agitating and mixing at 100-120 degrees C to react for 2 hours, using 200-mesh sieve, and removing residue; filtering solution into fly ash, and stirring uniformly to obtain compound fertilizer; preparing porcelain granule by fly ash to mixed solution for 4 degrees C, adding sodium dodecyl sulfate, cooling reaction solution to pressure filter to room temperature, and depositing at 105 degrees C to constant weight to obtain nano fly ash; seeding leaf vegetable, diluting compound fertilizer for 200 times by water, planting soil, and spraying for 2 times; seedling leaf, putting fertilizer diluted for 400 times by water, planting soil, uniformly spraying onto leaf, diluting fertilizer for 400 times by water, fertilizing, and spraying fertilizer on plant and blade.