Abstract:

This article uses Solanum melongena L. as experimental materials to study the effects of spraying, flushing, and spraying+flushing compound amino acid fertilizers on their growth and quality. The results showed that the application of compound amino acid fertilizer significantly increased the aboveground fresh weight of Solanum melongena L. plants. Among different application methods, there was no significant difference in the agronomic traits, except for the net photosynthetic rate of spraying and flushing treatment of Solanum melongena L. plants was significantly higher than that of spraying treatment. There were differences in the effects of different application methods on the content and distribution of nitrogen, phosphorus, magnesium, and sulfur. The flushing treatment significantly increased the V_C content and soluble sugar content of Solanum melongena L., while the spraying+flushing treatment significantly increased the V_C content, soluble sugar content, and soluble protein content of Solanum melongena L., and significantly reduced the crude fiber content. In summary, the application of compound amino acid fertilizer can promote the growth of Solanum melongena L., affect the content and distribution of mineral elements, and improve the quality of Solanum melongena L. to a certain extent. Among them, the effect of spraying+flushing treatment is better than that of single flushing treatment and spraying treatment.

Key words: amino acid fertilizers, application methods, Solanum melongena L., growth, quality