Abstract: Three kinds of organic water-soluble fertilizers（acadian seaweed fertilizer, bright moon foaming phyllostachys aeruginosa fertilizer and dry amino acid water-soluble fertilizers） with different concentrations were applied to analyze the effects on the growth of eggplant （Solanum melongena L.） seedlings. The results showed that, compared with the control group （clear water）, the appropriate concentration of organic water-soluble fertilizers could promote the growth of eggplant seedlings and improve seedling index. The best effect was achieved by 0.5 g/L of phyllostachys aeruginosa fertilizer, which increased the biomass by 0.021 g, diameter by 0.15 mm and seedling index by 0.021, followed by 1.0 g/L of dry amino acid water soluble fertilizer. Therefore, 0.5 g/L of lunisolar phycolith fertilizer and 1.0 g/L of dry amino acid water-soluble fertilizer can not only promote the growth of eggplant seedling, but also promote the formation of robust eggplant seedling, which can be used in the production of eggplant seedling.

Key words: eggplant （Solanum melongena L.）, seedlings, organic water-soluble fertilizer, growth, strong seedlings