Method for preparing foliage fertilizer containing nucleic acid degradation product

The invention relates to a preparation method of a foliar fertilizer which comprises nucleic acid degradation products. The invention is characterized in that: malt sprout is employed to obtain nuclease liquid with a low temperature water extraction method, nucleic acid solution and enzyme solution are blended according to a proportion by weight of 1 : 2 to 3 portions of nucleic acid and malt sprout, and the solution is hydrolyzed at a temperature of 65 DEG C and a condition of pH 5.6 for 3 to 4 hours, then a nucleic acid degradation product foliar fertilizer is obtained after enzyme dispelling, filtering, enzyme and milling. The preparation method of the invention is characterized by simple technique, easily available raw material, pollution free exhaust and low production cost; the prepared nucleic acid degradation products of the foliar fertilizer are nucleosides, nucleotides, pyrimidine, purine and other micromolecule, thus being beneficial to the metabolism process of nucleic acid, and the invention also