NOVELTY - Production of a humic acid fertilizer comprises adding (kg) coal powder (100-120) and water (200-300) in a stirred autoclave; adding nitric acid (3-8), stirring, heating to 60-70 degrees C, and reacting for 60 minutes; adding potassium carbonate (5-8), stirring, heating to 70-85 degrees C, and reacting for 60 minutes to obtain a reaction mass; adding diflubenzuron (3-6), chlorbenzuron (1-5), daminozide (2-5), and paclobutrazol (2-8) to the reaction mass (10000); uniformly mixing; and granulating, drying at 50-60 degrees C, cooling, screening, separating, and packing.    USE - Method for the production of a humic acid fertilizer for steppe ecology (claimed).    ADVANTAGE - The method is simple and practical, saves energy and time, is environment-friendly, is inexpensive, good promotion effect for ecological environment (such as soil, crop, and water system), strengthens plant drought resistance, cold resistance, and anti-disease ability, and has preventing and treating effects for diseases and insect pests.    DETAILED DESCRIPTION - Production of a humic acid fertilizer comprises:    (A) preparing decomposed coal having greater than 50% humic acid less than 30% water, lignite, and peat;    (B) grinding coal to 80-120 meshes;    (C) preparing coal powder, nitric acid, potassium carbonate, diflubenzuron, chlorbenzuron, daminozide, paclobutrazol, and water at a weight ratio of 100-120:3-8:2-5:0.03-0.06:0.01-0.05:0.05-0.07:0.02-0.08:200-320;    (D) adding (kg) coal powder (100-120) and water (200-300) in a stirred autoclave; adding nitric acid (3-8), stirring, heating to 60-70 degrees C, and reacting for 60 minutes so that the raw materials are completely oxidized in a plant highly absorbable micromolecule organic; adding potassium carbonate (5-8), stirring, heating to 70-85 degrees C, and reacting for 60 minutes to obtain a reaction mass having lesser than 30% water and a pH value of 6-7; and    (E) adding diflubenzuron (3-6), chlorbenzuron (1-5), daminozide (2-5), and paclobutrazol (2-8) to the reaction mass (10000); uniformly mixing; passing the material to a granulator with a conveyor belt, drying the pelleted grains in a drying machinery at 50-60 degrees C, cooling in a cooling machine, screening, separating, and packing.