Because of that, it tightly controls this nitrifying bacteria function in the soil.

抗生素抑制了硝化细菌在土壤里的活动。

These antibiotics are specifically directed to this little bacteria, we say the nitrifying bacteria.

这种抗生素会直达一种小小的细菌，即“硝化”细菌。

It produces large amounts of antibiotics from the root systems.These antibiotics are specifically directed to this little bacteria, we say the nitrifying bacteria.

它从根系产生大量抗生素。这些抗生素专门针对这种小细菌，我们称之为硝化细菌。