Microorganism inoculant gives orchid winter to be able to use?

Microbial agents need to do these key points, orchids can not use microbial agents in winter. The biological bacteria in microbial agents are generally active at 18-25 ℃ in the soil, and begin to decrease when the temperature is below 15 ℃. When the temperature is below 15 ℃, the life activities will enter a dormant state or very weak, while the temperature is low in winter. Orchids have little effect after applying microbial agents, which is easy to cause waste.