The purpose of a letter of attestation is to confirm or acknowledge an action, statement or behavior. As such, it takes the format and layout of an official letter, but with a few modifications. Basically, the sender is attesting to the knowledge and awareness of a particular situation.
Some consider L.rubellus to be the true red worm. It is also called the dung worm, or red marsh worm. This worm loves manure and compost piles but has also been found working the earth which makes it doubly effective as the two other worm varieties stay mostly at the surface of the soil.
Once consumed and digested by the worms, bacteria and other micro organisms in the soil, they will be released as ions (inorganic elements) dissolved in water, the only form under which plants will absorb them. While being a ânaturalâ transformation, composting introduces an uncertainty factor in the procedure.