Compost is excellent for soil mixes.
it helps to know what's in it or have it lab tested before you use it for anything important.
Compost is the single most important thing for a farmer or a gardener.
It represents the regeneration of nature and is how we create a healthy soil.
Healthy soil grows healthy plants and that intern grows healthy animals that feed us humans. Its true that you will benefit most when you are in harmony with nature.
Nature has been composting for WAY longer than humans have walked the earth.
Even farmers that use chemical fertilizer realize the importance of composting.
We can make our own by recycling kitchen scraps in a bin outside. Everyone can do it and should be doing it. Add a few extra goodies like rock dusts and you're well on your way to a very very good humus input for your garden.
Choose sustainability over everything else and you will be in harmony with yourself and nature.
Soil testing is a thing its been a thing in the US ever since the first AG bill put into law in the 1930s after the Dust Bowl happened and many people starved.
Soil testing in the USA is basically FREE to everyone. I pay $8 - that doesn't even pay for the shipping.
I add my vermi-compost to my soil recipe - send a sample off to the State Lab that does the testing. Adjust as needed after test report. The soil recipe I use is pretty good.
Composting or vermi-composting (using worms) doesn't create any smell as long as you do NOT ad any animal products.
Your soil that you used your chemical fertilizers on can be re-cycled in a compost bin. All the chelated chemicals get broken down as they are digested by the micro-organisms. Those chemicals dont remain in the same form as you poured them out of your bottle.
We use 2 compost bins with lids. 1 is 165gal and the other is I think 110 gal.
We also have a few compost heaps in our gardens for weeds and yard debris.
We live in a city with a very small yard. Our first bin was 60 gal and was free from our local municipal department. They promote composting.