“Compost tea” can also be used to add beneficial bacteria to the soil. It’s just water that has been allowed to steep in compost. The exact recipes vary, with some only running the water thru the compost once, then spreading.
I also use weed tea: I pull weeds put them in a bucket, add water and let it ‘steep’. It smells really bad, but you get the minerals that the weeds rob from the soil. Plus bacteria.