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High Organic Matter Liquid Fertilizer Alga Phosphite K
US$4.50
2,000-4,999 L
US$3.50
5,000+ L
Product profile
Customization
AvailableCondition
NewCertification
ISO9001, ISO, ReachModel NO.
Alga Phosphite KApplication
Vegetables, Flowers, FruitState
LiquidValidity
Long-termPhysics State
LiquidInfection On Soil
Physiological NeutralChemical Character
Chemical NeutralTransport Package
Bottle and CartonSpecification
100ml, 250ml, 500ml, 1L, 4L, 5L, 10LTrademark
SeawinnerOrigin
QingdaoHS Code
310590Key features
High Potassium Phosphite Content: Contains 30% P2O3 and 20% K2O for rapid nutrient absorption and growth regulation.
Seaweed Active Ingredients: Rich in seaweed polysaccharides to enhance disease resistance and fruit quality.
Broad Disease Resistance: Effective against Downy Mildew, Powdery Mildew, Phytophthora, and Root Rot.
Versatile Application Methods: Suitable for foliar spray, flood irrigation, or drip irrigation with specific dilution ratios.
High Compatibility: Good compatibility with copper preparations without precipitation or damage.
Customization Services: ODM and OEM services available for tailored fertilizer solutions.
Certified Quality: ISO9001, ISO, and Reach certified manufacturing standards.
Fast Absorption Speed: Absorption is significantly faster than orthophosphate for quick P and K supplementation.
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 main ingredients of this fertilizer?
A:
The main ingredients include Seaweed Potassium Phosphite (30%-20%), Seaweed Polysaccharides (1%), and Citric acid chelating agent (1%).
Q:How should this product be applied?
A:
It can be used for foliar spray (diluted 800-1200 times), flood/drip irrigation (2-3L/Ha), or disease prevention (diluted 200-500 times).
Q:What diseases does it help prevent?
A:
It enhances resistance to Downy Mildew, Powdery Mildew, Venturia Inaequalis, Phytophthora, Root Rot, and Canker.
Q:Is it compatible with copper preparations?
A:
Yes, it has good compatibility with copper preparations and can be used together without precipitation or damage.
Q:What is the shelf life and storage condition?
A:
The product has a long-term validity. If crystals appear due to high concentration, add water to dissolve it without affecting efficacy.
Send Inquiry
*To:Qingdao Seawin Biotech Group Co., Ltd.
Qingdao Seawin Biotech Group Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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