Green prevention and control method for salvia miltiorrhiza root rot

The invention discloses a green prevention and control method for salvia miltiorrhiza root rot. The green prevention and control method comprises the following steps that (1), materials are prepared, specifically, paecilomyces lilacinus bacterial liquid and trichoderma harzianum bacterial liquid are prepared; (2), salvia miltiorrhiza is planted, specifically, firstly, land is prepared, watering is carried out for moisture conservation in case of drought, 1000kg of organic fertilizer per mu is prepared, and the paecilomyces lilacinus bacterial liquid splashed on the organic fertilizer; secondly, seedlings are selected; then salvia miltiorrhiza seedlings are treated, the selected salvia miltiorrhiza seedlings are placed in a diluent of the trichoderma harzianum bacterial liquid to be soaked for 1 minute, fished out, shaded and aired; and finally transplanting is carried out; and (3), later-period management is carried out, specifically, paying attention to keeping the soil humidity not lower than 50%, and are r