Featured Products
Seaweed + Humic Acid Fertilizer
A powerful blend of seaweed and humic acid to boost soil fertility and plant growth.

Seaweed + Trace Elements
A nutrient-rich powder with seaweed and essential trace elements for balanced plant nutrition.


Amino Acid + Trace Elements + Seaweed
A liquid fertilizer with amino acids, trace elements, and seaweed for rapid plant growth and stress resistance.

Seaweed + Trace Elements
A liquid seaweed fertilizer enriched with trace elements for enhanced flowering and fruiting.
Humic Acid + Seaweed Fertilizer
A humic acid and seaweed blend for improved soil health and plant resilience.

South African Giant Kelp
A premium biostimulant extracted from South African giant kelp using an advanced low-temperature enzymatic hydrolysis process.

Shandong Dayi Biotechnology Group Co., Ltd.
Established in 2015 with stock code 305780, Shandong Dayi Biotechnology Group Co., Ltd. is a high-tech enterprise honored as a “Specialized, Refined, Unique, and Innovative Enterprise” in Shandong Province. The company has also been awarded titles such as Shandong Provincial Gazelle Enterprise, Weifang Invisible Champion Enterprise, Weifang Municipal Enterprise Technology Center, and Chairman Unit of the Weifang Pet Association. It has successfully obtained certifications of ISO9001:2015 Quality Management System, ISO14001:2015 Environmental Management System, and ISO45001:2018 Occupational Health and Safety Management System.
The company covers an area of 70,000 square meters and building area of 35,000 square meters, and fixed assets of USD30.00 million. It has invested over USD 7.00 million in its R&D center, established high-level platforms such as an Academician Workstation, Doctoral Workstation, and Provincial Enterprise Technology Center. Shandong Dayi owns an independent microbial strain library, housing over 1,000 functional strains, including 16 patented strains. The company is equipped with state-of-the-art facilities such as intelligent automated fermentation systems, advanced experimental testing equipment, vacuum freeze-drying systems, multi-effect evaporation systems, centrifuges, pressure spray systems, a -86°C strain preservation center, and fermentation-drying integrated equipment for large-scale solid fermentation projects, leading the nation in microbial strain R&D and production capabilities.
Our Products
Functional Animal Health Products, Specialized Functional Plant Protection Products, Aquaculture Health Products, Pet Health Products.
Dayi delivers eco-friendly agriculture and animal nutrition solutions, promoting sustainability.
- Powered by advanced “Microbial+” technology
- Our state-of-the-art facilities ensure unmatched production capacity and quality.
- We lead the way in sustainable solutions for agriculture and animal health.
How we Do it ?
News and Posts

Caring for Your Pets Naturally: The Microbial Advantage
Our pets are more than just animals; they are family

Enhancing Aquaculture Efficiency with Microbial Technology
Aquaculture plays a vital role in feeding the world’s growing

Nurturing Crops for a Healthier Future: The Role of Microbial Biotechnology
Healthy plants are the cornerstone of sustainable agriculture. Modern farming

Advancing Animal Nutrition with Microbial Innovations
The health of farm animals is directly linked to the