alt Hacker NewsAlso it's "glyphosate", right? Not "glyphosates". It's not like some weird class of industrial chemicals; it's a specific herbicide, used since 1975, more commonly known as Roundup, notable because Monsanto owns patents on genetically-modified crops that are resistant to it.
They're probably referring to the different salts (isopropylamine (IPA), potassium, or diammonium) which can greatly affect absorption and effectiveness