Application of nitrate-philic plant in repair of acidified soil and repair method

The invention discloses application of a nitrate-philic plant in repair of acidified soil. The nitrate-philic plant is tomato, corn or wheat. A plant repair method for repairing the acidified soil by using the nitrate-philic plant comprises the following steps of: planting the nitrate-philic plant in the acidified soil, and applying a nitrate state nitrogen fertilizer in basal dressing and top dressing modes. The nitrate state nitrogen fertilizer is calcium nitrate or potassium nitrate. The acidified soil is mainly agricultural red yellow soil of subtropical regions in south China. The method is a pure agriculture method and does not introduce any harmful substances, so the method is a green method for repairing the acidified soil. The method has a unique improvement effect on the acidity of the subsurface soil.