Seaweed has been a part of human culture for thousands of years. Early farmers planted seaweed directly in the soil or used it as a mulch, thereby increasing crop yields and ensuring greater agricultural productivity.
Traditional farming communities are well aware of the benefits of seaweed’s nutritional content, which includes essential minerals, trace elements, and vitamins. Consequently, demand and technological advancements have led to the widespread use of seaweed extracts and formulations in a variety of fruit and vegetable crops.
As the market continues to grow exponentially,the seaweed-derived fertilizer market size is estimated at USD 1.2 billion in 2024 and is projected to reach USD 2.5 billion by 2033, growing at a CAGR of 9.1% from 2026 to 2033.
Next, we will explain the reasons for the rapid growth of the seaweed extract market from the two aspects of demand and technology of seaweed extract:
Urgent needs from growers and markets:
1.Coping with Abiotic Stress:
Global climate change is leading to increasingly frequent extreme weather events (droughts, floods, high and low temperatures). Seaweed extracts, including betaine, seaweed polysaccharides, and mannitol, have been scientifically proven to effectively help crops cope with these stresses and enhance their resilience. For growers, using seaweed fertilizer is like buying “climate insurance” for their crops, significantly reducing weather-related losses and ensuring stable yields.
2.Improvement of agricultural product quality:
Improve quality: Promote the accumulation of sugars, vitamins, and aromatic compounds, enhancing taste and flavor.
Enhance appearance: Promote uniform fruit coloring, improve fruit shape, and enhance surface gloss.
This directly helps growers improve their product’s market competitiveness and profitability, creating a positive cycle of “effective use -> higher prices -> increased consumer demand.”
3.Soil health and sustainable agriculture:
Long-term use of chemical fertilizers has led to increasingly serious soil compaction, salinization, and a decrease in organic matter. Seaweed extract is an excellent soil conditioner:
The natural polysaccharides and colloids in it improve soil aggregate structure, increasing aeration and water and fertilizer retention.
It also stimulates the activity of beneficial microorganisms in the soil, fostering a healthier soil microecosystem.
4.Reduce the use of chemical fertilizers:
Certain components in seaweed extracts, such as fucoidan, have a certain allergy-inducing effect, activating the crop’s defense system and reducing the incidence of disease. They also promote root development and improve fertilizer absorption and utilization (especially nitrogen, phosphorus, and potassium). This is highly consistent with the global and Chinese policy direction of “zero growth/reduction and increased efficiency of pesticides and fertilizers,” making them important alternatives and complementary products to achieve this goal.
Technological Innovation and Diversification of Seaweed Extracts:
1.Innovation in Extraction Technology:
Traditional physical pulverization or chemical alkaline extraction methods destroy the active substances in seaweed. Nowadays, new extraction processes such as bio-enzymatic hydrolysis and cryogenic cell wall disruption are widely used. These technologies more gently and completely preserve the natural bioactive components in seaweed, resulting in more stable and effective end products. This truly delivers noticeable results to users and drives repeat purchases.
2.Diversification and Convenience of Product Forms:
Seaweed extracts are no longer limited to single aqueous solutions. A wide range of seaweed concentrates, water-soluble granules, and suspension concentrates are now available on the market. These extracts can be easily combined with other fertilizers (water-soluble macronutrient fertilizers, trace element fertilizers), and even pesticides, creating “seaweed plus” functional products that meet growers’ needs for labor and time savings.
Conclusion: Seaweed extract fertilizers are gaining popularity in the global agricultural sector due to their natural growth-promoting properties and sustainability benefits. These fertilizers, derived from seaweed, are rich in nutrients, minerals, and bioactive compounds that significantly boost plant health and yield. Therefore, seaweed fertilizer extracts are poised to maintain strong growth momentum. Dora has launched four different sources and specifications – Kelpreal,AlgaNeo,AlgaEck,Algamax to capture the market and secure a future.