I have subscribed a magazine where read about enhancer liquid for use mixed with water and a bio spray from Green Pakistan. Now using it on my around 200 plus fruit trees and also on vegetables. Also made two experimental beds of Maize, on one just manure etc and on other NPK , plus enhancer and also Bio Spray. So will see results although even after 15 days or so, I can see some difference that Maize bed with Bio spray and Enhancer liquid has somewhat better growth.
It is claimed that both Enhancer and Bio Spray are 100% herbal and no chemical.