Culture composition for vegetable seedling and application thereof

The invention provides a culture composition for vegetable seedling. The culture composition is characterized by including peat particles, a nutrient medium, a microbial agent and a swelling agent, wherein the nutrient medium includes 100 parts of K2SO4 particles by weight, 40-70 parts of CO(NH2)2 particles by weight, 30-70 parts of (NH4)2HPO4 particles by weight and 20-50 parts of FeSO4 particles by weight; the microbial agent comprises a culture medium and thalli, wherein the thalli includes Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus safensis. According to the culture composition provided by the invention, a good plant seedling index can be obtained, so that the yield and the quality of vegetables are improved, and the culture composition has wide application prospect in the field of vegetable seedling.