Nutritional value of seaweed fertilizer

Seaweed fertilizer is a kind of fertilizer produced by using marine brown algae or by adding a certain amount of nitrogen, phosphorus, potassium and trace elements. At present, there are many forms, mainly liquid and powder in the market, and a few of them are granular.

　　Seaweed is the original producer of marine organic matter, with strong adsorption capacity, which can concentrate 440, 000 times as much marine matter as itself, with extremely rich and balanced nutrition. The primary leaves are lanceolate or obovate, 5 ~ 7 cm long and 1cm wide, and are entire or coarsely serrated; The secondary leaves are strip-shaped or lanceolate, and there are branchlets with strip-shaped leaves between the axils. The balloon is dark brown, spherical or ovoid, some have stalks, the top is blunt and round, and some have thin and short tips. Crispy, soft when moist; Swelling after water immersion, fleshy and sticky. The smell is fishy and slightly salty.

　　Seaweed fertilizer is a biological fertilizer made of marine plant seaweed as the main raw material through scientific processing. Its main components are natural bioactive substances extracted from seaweed and mineral nutrients absorbed and enriched in the body by seaweed, including seaweed polysaccharide, phenolic polymers, mannitol, betaine, plant growth regulators (cytokinin, gibberellin, auxin, abscisic acid, etc.) and nitrogen, phosphorus, potassium, iron and abscisic acid. In addition, in order to increase fertilizer efficiency and fertilizer chelation, a proper amount of humic acid and trace elements are also dissolved.