AZOLLA CULTIVATION
AZOLLA CULTIVATION Azolla is an aquatic floating fern. The fern appears as a green mat over water. The Blue Green Algae cyanobacteria (Anabaena arollae) present as a symbiont with this fern in the lower cavities actually fixes atmospheric nitrogen It contains 1.96-6.30% nitrogen; 0.016-1.59% P₂O, and 1.31-5.90% KO in addition it also contains calcium, magnesium, sulphur and iron and 25-30% protein. It also contains amino acids, minerals, vitamins and beta carotenes which are essential to livestock's. Azolla can be a substitute for chemical nitrogenous fertilizers to a certain extent (20 kg/ha) and it increases the crop yield and quality. It is a good feed...