Humus vs. Composted Manure vs. Top Soil
What's the difference between Humus, Composted Manure and Top Soil? My local garden center has bags of all three and they are all about the same price. Sometimes I mix the humus and manure and put a shovelful in with my new plantings, and sometimes I mix all 3. Last year, for no particular reason, I used only humus.
Does is matter which one is used as a soil amendment at planting time? I figure any of them are better than nothing, but I'd like to used the best one.