Method for producing novel saline-alkaline restoration fertilizer by utilizing high-silicon iron tailings and product

The invention relates to a method for producing novel saline-alkaline restoration fertilizer by utilizing high-silicon iron tailings. The novel saline-alkaline restoration fertilizer comprises the following components in parts by weight: 820 to 900 parts of high-silicon iron tailings, 14 to 18 parts of calcium sulfate, 8 to 12 parts of zinc sulfate, 4 to 8 parts of potassium sulfate, 7 to 11 parts of iron vitriol, 3 to 7 parts of calcium phosphate, 1 to 5 parts of iron citrate, 12 to 18 parts of magnesium sulfate heptahydrate, 10 to 16 parts of ammonium sulfate, 5 to 9 parts of ammonium molybdate, 8 to 12 parts of monopotassium phosphate, 10 to 15 parts of ammonium polyacrylate, 210 to 250 parts of peat soil and 180 to 220 parts of humic acid. All materials are stirred and mixed, and the mixed materials are crushed in vacuum to obtain the novel saline-alkaline restoration fertilizer. The invention aims at providing the method for producing the saline-alkaline restoration fertilizer by utilizing the high-silicon iron tailings and a product, which can improve the soil fertility as well as remarkably enhance the air permeability, water permeability, fertilizer retention capacity and water retention capacity of the saline-alkaline soil.