Sep 24, 2025Leave a message

2025 Top 10 Foliar seaweed spray Manufacturers in China

Introduction to Foliar Seaweed Spray

Foliar seaweed spray is a type of agricultural product derived from seaweed. Seaweed is rich in a variety of nutrients, including minerals such as potassium, calcium, magnesium, and trace elements like iron, zinc, and manganese. It also contains plant hormones such as auxins, cytokinins, and gibberellins, as well as amino acids and vitamins. When applied as a foliar spray, it can be quickly absorbed by plant leaves, providing essential nutrients, enhancing plant resistance to diseases and pests, improving photosynthesis efficiency, and promoting overall plant growth and development. This product is widely used in different types of crops, including fruits, vegetables, grains, and ornamental plants, to increase yield and improve the quality of agricultural products.


Top 10 Manufacturers

1. Shenyang Huaqingyuan Agriculture Development Co., Ltd.

Shenyang Huaqingyuan Agriculture Development Co., Ltd. is a well - known enterprise in the field of agricultural products in China. It is committed to the research, development, production, and sales of high - quality agricultural fertilizers and plant growth regulators. The company has a professional R & D team and advanced production equipment, which ensures the quality and stability of its products.


Features in Foliar Seaweed Spray

  • Rich Nutrient Composition: Their foliar seaweed spray contains a comprehensive range of nutrients from seaweed. The balanced ratio of macro - and micro - nutrients can meet the different growth needs of various plants at different growth stages. For example, the high - content potassium helps in fruit setting and ripening, while the trace elements are crucial for enzyme activation in plants.
  • High - Quality Raw Materials: The company carefully selects high - quality seaweed as the raw material. They source seaweed from clean and unpolluted sea areas, which ensures that the final product is free from harmful substances and has high biological activity.
  • Advanced Extraction Technology: They use advanced extraction technology to retain the maximum amount of active ingredients in the seaweed. This technology can effectively extract plant hormones, amino acids, and other bio - active substances, making the foliar spray more effective in promoting plant growth.


Company Advantages

  • Strong R & D Capability: The R & D team of Shenyang Huaqingyuan Agriculture Development Co., Ltd. continuously conducts research on new formulas and production processes. They collaborate with agricultural research institutions to keep up with the latest scientific findings in the field of plant nutrition, which enables them to develop more advanced foliar seaweed spray products.
  • Quality Assurance System: The company has a strict quality control system. From raw material inspection to the final product testing, every step is carefully monitored. This ensures that the products meet high - quality standards and are safe for use in agriculture.
  • Good Market Reputation: Over the years, the company has established a good reputation in the market. Their products are widely recognized by farmers and agricultural enterprises for their effectiveness and reliability.
  • Website: https://www.agrownutrient.com/


2. Qingdao Honghai Biotechnology Co., Ltd.

Qingdao Honghai Biotechnology Co., Ltd. is located in Qingdao, a coastal city with rich marine resources. The company focuses on the development and production of marine - based agricultural products. It has a modern production base and a group of experienced professionals in the fields of biotechnology and agriculture.


Features in Foliar Seaweed Spray

  • Customized Formulas: Qingdao Honghai Biotechnology Co., Ltd. can provide customized foliar seaweed spray formulas according to different crop types and growth environments. For example, for greenhouse vegetables, they can develop a formula with higher levels of anti - stress substances to help plants adapt to the relatively closed and changeable environment.
  • Enhanced Disease Resistance: Their foliar seaweed spray contains natural substances that can enhance the plant's immune system. These substances stimulate the plant to produce phytoalexins, which are antimicrobial compounds that help the plant resist diseases such as powdery mildew and downy mildew.
  • Improved Soil Micro - environment: When applied to plants, the spray can also have a positive impact on the soil micro - environment. It can promote the growth of beneficial soil microorganisms, which in turn improve soil fertility and nutrient availability for plants.


Company Advantages

  • Location Advantage: Being located in Qingdao, the company has easy access to high - quality seaweed resources. The local marine environment provides a rich source of different types of seaweed, which allows the company to produce a diverse range of foliar seaweed spray products.
  • Biotechnology Expertise: The company has a strong background in biotechnology. They use advanced fermentation and extraction techniques to process seaweed, which can increase the bio - availability of nutrients in the foliar spray.
  • Comprehensive Service: Qingdao Honghai Biotechnology Co., Ltd. provides comprehensive services to its customers. They offer technical support, including on - site guidance on product application, and also provide after - sales service to ensure customer satisfaction.


3. Shandong Jufeng Biotechnology Co., Ltd.

Shandong Jufeng Biotechnology Co., Ltd. is a leading enterprise in Shandong Province, which is known for its strong agricultural industry. The company has been dedicated to the production of agricultural fertilizers and plant growth regulators for many years.


Features in Foliar Seaweed Spray

  • High - Concentration Nutrients: Their foliar seaweed spray has a high concentration of nutrients. This means that a small amount of the spray can provide sufficient nutrients for plants, reducing the amount of product needed for application and saving costs for farmers.
  • Fast - Acting Effect: The product can be quickly absorbed by plant leaves due to its unique formulation. After application, plants can show visible growth improvement within a short period, such as greener leaves and stronger stems.
  • Compatibility with Other Pesticides and Fertilizers: The foliar seaweed spray of Shandong Jufeng Biotechnology Co., Ltd. is compatible with many common pesticides and fertilizers. This allows farmers to mix it with other agricultural chemicals during spraying, saving time and labor.


Company Advantages

  • Large - Scale Production Capacity: The company has a large - scale production base, which enables it to meet the large - scale market demand. They can produce a large quantity of foliar seaweed spray products in a short time, ensuring product supply stability.
  • Cost - Effective Production: Through efficient production management and cost - control measures, Shandong Jufeng Biotechnology Co., Ltd. can produce high - quality foliar seaweed spray at a relatively low cost. This makes their products more competitive in the market.
  • Industry Experience: With many years of experience in the agricultural product industry, the company has a deep understanding of the market and customer needs. They can continuously improve their products based on market feedback.


4. Zhejiang Lvbang Biotechnology Co., Ltd.

Zhejiang Lvbang Biotechnology Co., Ltd. is located in Zhejiang Province, a region with a developed economy and advanced agricultural technology. The company focuses on the research and development of environmentally friendly agricultural products.


Features in Foliar Seaweed Spray

  • Organic and Environmentally Friendly: The foliar seaweed spray of Zhejiang Lvbang Biotechnology Co., Ltd. is an organic product. It is free from chemical pesticides and synthetic fertilizers, which makes it suitable for organic farming. It can help farmers produce high - quality, pollution - free agricultural products.
  • Improved Fruit Quality: When used on fruit crops, the spray can significantly improve fruit quality. It can increase the sugar content, improve fruit color, and enhance the storage - ability of fruits. For example, on apples, it can make the apples more brightly colored and have a longer shelf - life.
  • Stress Tolerance Enhancement: The spray can enhance the plant's tolerance to various environmental stresses, such as drought, high temperature, and cold. It helps plants maintain normal physiological functions under adverse conditions, reducing yield losses.


Company Advantages

  • Environmental Awareness: The company has a strong environmental awareness. They are committed to developing and producing agricultural products that are friendly to the environment. This not only meets the growing demand for sustainable agriculture but also helps to protect the ecological environment.
  • Advanced R & D Concept: Zhejiang Lvbang Biotechnology Co., Ltd. adopts an advanced R & D concept, focusing on the combination of modern biotechnology and traditional agricultural knowledge. This allows them to develop unique and effective foliar seaweed spray products.
  • Market Expansion Ability: The company has a good market expansion ability. They have established a wide sales network both in China and overseas, which helps to promote their products and increase brand awareness.


5. Guangdong Haichuang Biotechnology Co., Ltd.

Guangdong Haichuang Biotechnology Co., Ltd. is based in Guangdong Province, a region with a warm climate and diverse agricultural production. The company is specialized in the production of marine - derived agricultural products.


Features in Foliar Seaweed Spray

  • Adaptability to Tropical and Sub - tropical Crops: The foliar seaweed spray of Guangdong Haichuang Biotechnology Co., Ltd. is specifically formulated to meet the needs of tropical and sub - tropical crops. It contains substances that can help these crops better adapt to high - temperature and high - humidity environments, such as enhancing the plant's transpiration regulation ability.
  • Promotion of Root Development: The spray can promote strong root development in plants. Healthy roots are essential for plants to absorb water and nutrients from the soil. By using this foliar spray, plants can have a more developed root system, which in turn improves their overall growth and productivity.
  • Balanced Growth Regulation: It can regulate the growth of plants in a balanced way. It not only promotes vegetative growth but also helps in the transition from vegetative to reproductive growth, ensuring proper flowering and fruiting of plants.


Company Advantages

  • Regional Agricultural Knowledge: The company has in - depth knowledge of the agricultural characteristics in Guangdong and other tropical and sub - tropical regions. This allows them to develop products that are well - suited to the local crops and farming conditions.
  • Continuous Innovation: Guangdong Haichuang Biotechnology Co., Ltd. is committed to continuous innovation. They invest a lot in R & D to improve the performance of their foliar seaweed spray products and develop new product lines.
  • Good Customer Relationship: The company has established good relationships with its customers. They listen to customer feedback and continuously improve their products and services to meet customer needs.


6. Fujian Zhongnong Biotechnology Co., Ltd.

Fujian Zhongnong Biotechnology Co., Ltd. is located in Fujian Province, which has a long coastline and rich marine resources. The company focuses on the development and production of agricultural products using seaweed as the main raw material.


Features in Foliar Seaweed Spray

  • Rich in Polysaccharides: Their foliar seaweed spray is rich in seaweed polysaccharides. These polysaccharides can form a protective film on the plant surface, reducing water loss and protecting plants from pests and diseases. They also have immunomodulatory effects on plants, enhancing their resistance.
  • Enhanced Photosynthesis: The spray can improve the photosynthesis efficiency of plants. It contains substances that can increase the chlorophyll content in leaves and optimize the photosynthetic pathway, which leads to more efficient energy conversion and plant growth.
  • Long - lasting Effect: Once applied, the foliar seaweed spray can have a long - lasting effect on plants. The nutrients and active substances are slowly released and absorbed by plants over time, providing continuous support for plant growth throughout different growth stages.


Company Advantages

  • Marine Resource Advantage: Fujian's rich marine resources provide the company with a stable supply of high - quality seaweed. The company can select different types of seaweed according to product requirements, which allows for the production of a variety of foliar seaweed spray products.
  • Quality - Oriented Production: Fujian Zhongnong Biotechnology Co., Ltd. adheres to a quality - oriented production philosophy. They have strict quality control measures in every production process to ensure the high quality of their products.
  • Technical Training for Farmers: The company provides technical training for farmers. They organize training courses on the proper use of foliar seaweed spray, which helps farmers make the most of the product and improve their agricultural production efficiency.


7. Jiangsu Haibo Biotechnology Co., Ltd.

Jiangsu Haibo Biotechnology Co., Ltd. is an important enterprise in Jiangsu Province, a region with a well - developed agricultural and industrial base. The company is engaged in the research, development, and production of seaweed - based agricultural products.


Features in Foliar Seaweed Spray

  • Synergistic Effect with Chemical Fertilizers: The foliar seaweed spray of Jiangsu Haibo Biotechnology Co., Ltd. can have a synergistic effect when used in combination with chemical fertilizers. It can improve the utilization rate of chemical fertilizers, reducing the amount of chemical fertilizers needed and at the same time reducing environmental pollution caused by excessive fertilizer use.
  • Reduction of Heavy Metal Uptake: The spray can reduce the uptake of heavy metals by plants. It can chelate heavy metals in the soil and prevent them from being absorbed by plant roots, which is very important for producing safe and healthy agricultural products.
  • Improved Flowering and Fruit - Setting: For fruit - bearing plants, the spray can improve flowering and fruit - setting rates. It provides essential nutrients and hormones during the reproductive growth stage, ensuring a higher yield of fruits.


Company Advantages

  • Integrated Industrial Chain: The company has an integrated industrial chain from seaweed collection to product production and sales. This allows for better control of product quality and cost, and also enables the company to respond quickly to market changes.
  • Scientific Research and Development: Jiangsu Haibo Biotechnology Co., Ltd. invests heavily in scientific research and development. They cooperate with universities and research institutions to conduct in - depth research on seaweed utilization and plant nutrition, which helps to continuously improve the performance of their foliar seaweed spray products.
  • Wide Market Coverage: The company has a wide market coverage in China. Their products are sold in many provinces, which reflects the high recognition of their products in the market.


8. Liaoning Hailong Biotechnology Co., Ltd.

Liaoning Hailong Biotechnology Co., Ltd. is located in Liaoning Province, a region with a cold - temperate climate and a large - scale agricultural production area. The company focuses on developing seaweed - based products suitable for cold - climate crops.


Features in Foliar Seaweed Spray

  • Cold - Resistance Enhancement: The foliar seaweed spray of Liaoning Hailong Biotechnology Co., Ltd. can enhance the cold - resistance of plants. It contains substances that can lower the freezing point of plant cells and protect cell membranes from damage under low - temperature conditions. This is very important for crops in Liaoning and other cold - climate regions.
  • Early Maturity Promotion: The spray can promote the early maturity of crops. It provides essential nutrients and hormones during the growth process, accelerating the growth and development of plants, and allowing farmers to harvest their crops earlier.
  • Improved Quality of Winter Crops: For winter crops, such as winter wheat and winter vegetables, the spray can improve their quality. It can increase the protein content in grains and improve the taste and nutritional value of vegetables.


Company Advantages

  • Cold - Climate Adaptation Research: The company has conducted in - depth research on the adaptation of plants to cold climates. This knowledge is incorporated into the development of their foliar seaweed spray products, making them more suitable for the local agricultural conditions.
  • Local Market Penetration: Liaoning Hailong Biotechnology Co., Ltd. has a good understanding of the local market in Liaoning. They have established strong relationships with local farmers and agricultural cooperatives, which helps them to promote their products effectively in the local area.
  • Product Diversification: The company also offers a diversified range of foliar seaweed spray products. They have different formulas for different crops and growth stages, which can meet the diverse needs of farmers.


9. Hainan Nanhai Biotechnology Co., Ltd.

Hainan Nanhai Biotechnology Co., Ltd. is based in Hainan Province, a tropical island with unique agricultural resources. The company is specialized in the production of seaweed - based agricultural products for tropical crops.


Features in Foliar Seaweed Spray

  • Tropical Crop - Specific Formulation: The foliar seaweed spray is specifically formulated for tropical crops such as bananas, mangoes, and coconuts. It contains nutrients and growth regulators that are essential for the growth and development of these crops in the tropical environment, such as high - level potassium for fruit quality improvement in bananas.
  • Enhanced Resistance to Tropical Diseases: The spray can enhance the plant's resistance to tropical diseases, such as banana wilt and mango anthracnose. It contains natural antibacterial and antifungal substances that can prevent the invasion of pathogens.
  • Improved Fruit Aroma and Taste: When used on fruit crops, the spray can improve the aroma and taste of fruits. It can promote the synthesis of flavor - related substances in fruits, making them more delicious.


Company Advantages

  • Tropical Agricultural Expertise: The company has in - depth expertise in tropical agriculture. They understand the growth characteristics and nutritional needs of tropical crops very well, which allows them to develop high - quality foliar seaweed spray products.
  • Local Seaweed Resources: Hainan's rich tropical seaweed resources provide the company with unique raw materials. The local seaweed species have different chemical compositions compared to those in other regions, which can be used to produce special - effect foliar seaweed spray products.
  • Tourism - Agriculture Integration: Hainan Nanhai Biotechnology Co., Ltd. also explores the integration of tourism and agriculture. They can promote their products through agricultural tourism activities, which not only increases product sales but also enhances brand awareness.


10. Tianjin Haixin Biotechnology Co., Ltd.

Tianjin Haixin Biotechnology Co., Ltd. is located in Tianjin, a municipality with a well - developed economy and a strong scientific research foundation. The company is engaged in the production of high - tech seaweed - based agricultural products.


Features in Foliar Seaweed Spray

  • Nanotechnology Application: The company applies nanotechnology in the production of its foliar seaweed spray. Nanoparticles can increase the surface area of nutrients and active substances, improving their absorption efficiency by plant leaves. This allows for more effective delivery of nutrients to plants.
  • Smart Nutrient Release: The spray has a smart nutrient - release mechanism. It can release nutrients according to the plant's growth needs at different stages. For example, during the vegetative growth stage, it can release more nitrogen - rich nutrients, while during the reproductive growth stage, it can release more phosphorus and potassium.
  • Reduced Environmental Impact: The use of nanotechnology and smart nutrient - release technology also helps to reduce the environmental impact of the product. It can minimize nutrient loss and leaching, protecting the environment while ensuring plant growth.


Company Advantages

  • High - Tech Research and Development: Tianjin Haixin Biotechnology Co., Ltd. has a strong high - tech research and development team. They keep up with the latest technological trends in the field of agriculture and apply advanced technologies such as nanotechnology to product development.
  • Collaboration with Research Institutions: The company collaborates with many research institutions in Tianjin and other regions. This cooperation allows them to access the latest scientific research results and develop more advanced foliar seaweed spray products.
  • International Market Vision: Tianjin Haixin Biotechnology Co., Ltd. has an international market vision. They are actively exploring overseas markets, which helps to promote the internationalization of Chinese foliar seaweed spray products.


Conclusion

The top 10 foliar seaweed spray manufacturers in China, including Shenyang Huaqingyuan Agriculture Development Co., Ltd., Qingdao Honghai Biotechnology Co., Ltd., and others, play a crucial role in the development of the agricultural industry. Each company has its own unique features and advantages in the production of foliar seaweed spray products. These manufacturers are not only committed to providing high - quality products that can improve plant growth, increase crop yield, and enhance product quality but also pay attention to environmental protection and sustainable development. With their continuous innovation, strong R & D capabilities, and market - oriented strategies, they are well - positioned to meet the diverse needs of farmers in different regions of China and even in the international market. As the demand for high - quality agricultural products continues to grow, these manufacturers are expected to make greater contributions to the development of modern agriculture.


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