Seaweed fertilizers are highly assimilable. Foliar algae fertilizers promote the transport of nutrients and enhance the vegetative development of the plant. Algae fertilizers also stimulate the root system. Seaweed fertilizers prevent stunted growth by being used at an early stage. Algae fertilizers promote the conversion of nitrates into proteins. Algal fertilizers improve the biosynthesis of phytoalexins, compounds naturally produced by the plant to cope with biotic stress.