Soilless Growing Medium For Containers

Question

I have heard about three major ingredients (peat moss, vermiculite and perlite) in soilless potting mix. What are they? How do they help in plant growth? How does one check for the right qualities of these products? If not available locally and easily, could they be replaced with the other materials (i. e. could a good potting mix be made out of organic composts, manures, oilseed meals, newspaper/white paper shreddings, natural mineral rock powders [limestone, rock phosphates, dolomite], etc) for making homemade potting mix? I shall appreciate the tips on homemade potting mixes without the use of moss, vermiculite and perlite.

Answer 1

These articles should help: https://www.gardeningknowhow.com/special/containers/choosing-containers-for-potted-environments.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soilless-growing-mediums.htm