A reader e-mailed me with a question about humic acid. Since the quality of their lawn is not as good as they desire it to be, a lawn service has recommended an application of humic acid. They want to ...

THE classification of humic substances, which are the main component of organic material in soils and sediments, is based on colour and behaviour in solvents. Humic acids are defined, according to the ...

Background and aims Vermicomposts are useful to improve environmental quality and sustainable agriculture. Moreover, it is enriched with highly bioactive humic acids (HAs)-like substances and can ...

Question: My lawn is full of thatch. Is there an easier way to control thatch than with a dethatching machine? Answer: Yes, there is a natural mineral called humic acid which will reduce thatch ...

Chlorination of humic and fulvic acid results in the formation of direct-acting mutagenicity, detectable in the Salmonella/microsome assay (Ames test). This mutagenicity is being characterized as part ...

THE stable humic acid of soil has an unknown chemical structure; it is considered to be a complex phenolic polymer formed from unknown biological precursors 1. This article presents the hypothesis ...