This review surveyed several researcher's works to give a more balanced view to this treatment and why it works.
http://www.barleyworld.org/barleystraw/Barley Straw - Algae Control Lit Anal Final.pdf
The possible other points, the type of phenolics, the temperature, microbe's role, carbon limitations, and many other factors pait quite a different picture to all the grandeous claims made by the proponents of Barley Straw extract etc.
Give it a read, it's not too techy and is straight forward.
Regards,
Tom Barr
http://www.barleyworld.org/barleystraw/Barley Straw - Algae Control Lit Anal Final.pdf
The possible other points, the type of phenolics, the temperature, microbe's role, carbon limitations, and many other factors pait quite a different picture to all the grandeous claims made by the proponents of Barley Straw extract etc.
Give it a read, it's not too techy and is straight forward.
Regards,
Tom Barr