In the context of fast depletion of soil fertility and high prices of chemical fertilizers, it has become imperative to use biofertilizers as a pollution-free low-cost input in agricultural production. Presently, the medium and low land rice fields around the urban and industrial areas are being polluted at an alarming pace not only due to domestic waste but also by industrial effluents. This monograph is the first of its kind on highlighting the dual role of the water fern Azolla in sustainable rice farming as well as decontaminating the polluted environment. Endowed with a high...