Practical guides for global fertilizer and biostimulant buyers.
Fulvic-acid content, water solubility and heavy-metal limits decide acceptance. This guide covers which parameters buyers screen and what to request in a COA.
Fulvate is small-molecule and highly active for fertigation and foliar; humate is for soil conditioning and retention. See how to pick — and when to combine.
EU heavy-metal limits and product-function categories (PFC) shape what you can ship to Europe. Learn the limits to specify and the documents to prepare.