International Humic Substances Society 2024 Products
Humic substances (HS) are complex and heterogeneous mixtures of polydispersed materials formed in soils, sediments, and natural waters by biochemical and chemical reactions during the decay and transformation of plant and microbial remains (a process called humification).
Note that we will not be shipping orders May 29 – June 5, 2024. We apologize for any inconvenience.