Fertilizer for tomato planting and preparation and fertilization methods thereof

The invention discloses a fertilizer for tomato planting and a preparation and fertilization method thereof, and belongs to the technical field of fertilizer application, the fertilizer for tomato planting comprises two medium element liquid fertilizers containing calcium, magnesium and nitrogen; wherein the medium element liquid fertilizer also comprises a water-soluble micromolecular organic matter; wherein the water-soluble micromolecular organic matters are seaweed and amino acid organic matters. According to the fertilizer for tomato planting, the condition of low-temperature seedling recovery is effectively improved, and the growth vigor of tomato plants under the low-temperature condition in winter is improved; a homogeneous solution is sprayed one week after tomato seedlings are transplanted, and the root growth and development capacity under the low-temperature condition is promoted; on the seventh day, the fourteenth day and the twenty-first day after tomato seedlings are transplanted, supplementary