If you want to conduct more scientific tests of your compost, follow the three simple procedures outlined below. Plant germination in extracts of compost. Plant germination in compost. Plant growth in compost. You may try one or all of these to determine compost maturity.
Germination is when a seed sprouts.
Immature compost may contain phytotoxins that will often kill seed embryos. Seeds grown in immature compost won't sprout or may die immediately after sprouting. A sample of your compost. Aluminum foil 6 pieces of tissue or paper towel 15 seeds of a fast germinating plant, such as radishes. 1 - Put cup of your compost in the paper cup.