Trichoderma harzianum-contanining functional vegetable seedling biological matrix and preparation method thereof

The invention provides a trichoderma harzianum-contanining functional vegetable seedling biological matrix and a preparation method thereof. The functional vegetable seedling biological matrix is formed by adding a functional bacterial strain, namely the trichoderma harzianum SQR-T037, into a common seedling matrix. As for seedlings such as cucumbers, eggplants and watermelons, the specific fungus trichoderma harzianum SQR-T037 is selected, is kept alive and is added into the matrix to obtain an active biological matrix product, and by using the product, the plant growth promoting effect on seedling stages of seedlings such as the cucumbers, eggplants and watermelons is good, and high-quality seedlings of which the rhizospheres include a large amount of microorganisms with an activity function can be cultivated; meanwhile, the beneficial microorganisms can be in large-scale colonization at the rhizospheres of the seedlings, so that the growth of the cultivated seedlings in the later cultivation process can be promoted, the yield of the crops planted in a big field is improved, and the effect of preventing and controlling a cucumber soil-borne disease of the cultivated seedlings is achieved.