Jiejing Seaweed Fertilizer is a new type of green biological fertilizer made from brown seaweed as the main raw material. The main ingredients are natural bioactive substances seaweed extract that are beneficial to the growth and development of plants and mineral nutrients absorbed by seaweed from the ocean and enriched in the body, including seaweed polysaccharides, phenolic polymer compounds, mannitol, betaine, Plant growth regulators (cytokinin, gibberellin, auxin, and abscisic acid, etc.) and trace elements such as nitrogen, phosphorus, potassium, and iron, boron, molybdenum, and iodine. In addition, in order to increase fertiliser efficiency and fertiliser chelation, an appropriate amount of humic acid and an appropriate amount of trace elements are also formulated to meet the nutrient needs of various stages of crop growth.