Humus is an item of soil chemistry, and it is dependent upon a source of its precursor substances: amino acids. Individuals can have an impact on the manufacture of humic substances through a variety of approaches: by making use of all-natural processes by composting lignin or including biochar (see soil https://cesaruodvj.blogars.com/15869565/not-known-factual-statements-about-mineral-source-humic-acid