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Seaweed Compound Granular NPK Fertilizers
US$0.40-0.60
3,000 kg
Sample price:US$0.00/kg.Request sample

Product profile

Customization

Available

Condition

Used

Certification

ISO9001, ISO

Model NO.

Seaweed Compound Granular Fertilizers

Application

Vegetables, Flowers, Fruit

State

Granular

Validity

Quick Acting

Physics State

Solid

Infection On Soil

Physiological Neutral

Chemical Character

Chemical Neutral

Function

Stimulate Crop Growth, Promote Crops On Soil Nutrient Use

Type

Granular

Organic

100% Water Soulble

Transport Package

20kg/Bag

Specification

20kg/bag 10kg/bag 1kg/bag 500g/bag

Trademark

SEAWINNER

Origin

China

Key features

Seaweed Extract Enriched: Contains 10% seaweed extract, 300ppm polysaccharide, and 500ppm alginic acid for comprehensive nutrients.
Soil Conditioner: Adjusts soil pH, forms aggregate structure, and promotes microbial activity for better micro-ecological environment.
High Nutrient Utilization: Organic active substances promote nutrient absorption and significantly improve fertilizer utilization rate.
Root Fortification: Strengthens root systems and stimulates crop growth to increase both yield and quality of crops.
Customizable Formulation: Available in 15-5-10 and 12-6-12 NPK ratios with 100% water-soluble organic content options.
Manufacturer Direct: Direct supply from a large factory with 556 employees, 41 R&D engineers, and 260,000 sqm plant area.

Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2004-06-01 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, Western Union

AI-Powered supplier vetting

SummaryQingdao Seawin Biotech Group Co., Ltd. is a China-based limited company founded in 2000, with 556 employees and operations in Shandong. It is identified as a manufacturer and processor focused on seaweed fertilizers, organic fertilizers, NPK fertilizers, fertilizer equipment, and related products. The supplier reports more than 10 production lines, a 260,000 m² manufacturing plant, annual seaweed extract and finished-product output of 600,000 tons, and export markets in South America, Europe, and North America. Its agronomist team provides fertilizer solutions and crop-protection advice, while reported certifications include ISO 9001, ISO 14001, ISO 45001, and ECOCERT organic-input certification. The available data supports strong production capability, certification coverage, and technical support. However, evidence is insufficient to confirm customization capability, financial credibility, or established customer cases; the trade records provided show only one transaction per listed buyer.
Supplier typeThe supplier is a limited company founded in 2000 and is explicitly described as a professional manufacturer focused on the exploitation, development, production, and marketing of marine biological products. Its product keywords and manufacturing descriptions identify it as a producer of seaweed fertilizer, organic fertilizer, NPK fertilizer, and fertilizer equipment rather than solely a trading company.
CertificationsThe supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 management-system certificates. Its SEAWINNER organic fertilizers are also stated to be certified by ECOCERT as organic agricultural inputs under both EU and NOP standards, providing explicit evidence of multiple quality, environmental, occupational-safety, and product certifications.
R&D capabilityThe supplier reports 41 years of total R&D-engineer experience and describes development and industrial utilization of marine biological resources. Its agronomist team provides professional fertilizer solutions and crop-protection advice, indicating technical development capability, although the slices do not provide specific R&D projects, patents, laboratories, or newly developed products.
Production capacityProduction capability is strongly supported by 556 employees, more than 10 production lines, a reported 260,000 m² manufacturing plant, two Shandong production bases, and stated annual output of 600,000 tons of seaweed extract and finished products. The supplier also reports lead times of within 15 workdays in off-peak periods and one month during peak periods, further indicating organized manufacturing capacity.

Product Q&A

Q:What are the available NPK ratios?
A:
The product is available in two main NPK ratios: 15-5-10 and 12-6-12.
Q:How should this fertilizer be applied?
A:
For base fertilizer, apply 600-900kg/ha. For topdressing, apply 300-450kg/ha.
Q:What is the lead time for orders?
A:
Peak season lead time is one month, while off-season lead time is within 15 workdays.
Q:Does the company offer OEM or ODM services?
A:
Yes, both OEM and ODM services are available for this product.
Q:What are the main benefits compared to urea?
A:
It conditions soil, adjusts pH, promotes microbial activity, and improves nutrient absorption and crop yield.

Send Inquiry

*To:Qingdao Seawin Biotech Group Co., Ltd.Qingdao Seawin Biotech Group Co., Ltd.
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