Preparation of special high-tower water-retention long-acting fertilizer for improving wheat quality and application of fertilizer in wheat topdressing

The invention provides a wheat reviving elongation stage topdressing fertilizer and application thereof in wheat cultivation. The fertilizer comprises a nitrogen source, a water-retaining agent, aminoacid, a nitrification inhibitor, a phosphorus source, a potassium source, a sulfur source, a zinc source, a boron source and a manganese source. The fertilizer disclosed by the invention is rich in various nutrient substances, and particularly the water-retaining agent, the amino acid and the nitrification inhibitor are added, so the mutual inhibition among all elements is reduced, and the growthrequirements of wheat, especially the requirements of different nutrients in the reviving and elongation stage, are met. The fertilizer is applied to wheat land parcels in the reviving elongation stage in cooperation with spring irrigation, nutrient supply conforms to the fertilizer requirement law of wheat, and the fertilizer has the advantages of being quick-acting, slow-release, long-acting, efficient and the like, can