Seedling pot made from an empty toilet paper roll. After germination, it can be buried directly in the garden bed as is; the roots will grow through the softened cardboard, and soil organisms will then consume it. Make sure to only use toilet paper rolls made from unchlorinated and unprinted cardboard.
edit: please check if recycling has a problem with chemicals or heavy metals in your country
I've done this and the, results were fine, but I didn't have a control group to compare.
In fact, I need to do this again right away or suffer the indugnity of buying actual chili plants