What is Azolla? Well, it is nothing but a free floating water fern consisting of a short, branched, floating stem, bearing roots which hang down in the water. It's kind of green fodder grown on water surface. Why the Azolla cultivation is increasing and becoming popular? Because, Azolla has many nutrient benefits when compared to other fodders. Apart from this, it has nature of fixing Nitrogen in rice crop field. Read more : Here.
