The Science of High-Yield Yields

We organize our company profile around four legacy pillars: profile, development, team style, and strength.

Why Duofen Agriculture?

Company Profile

Shandong Duofen Agriculture Co., Ltd., located in Qingzhou Economic Development Zone, was established in 2009. The company integrates research, development, production, sales, and service of high-quality liquid fertilizer stock solutions and specialty water-soluble fertilizer products.

Development Focus

Duofen continuously strengthens market analysis, distributor empowerment, and customer-near service network construction. The business model emphasizes practical execution, stable quality, and long-term channel cooperation.

Team and R&D Platforms

The legacy content emphasizes R&D collaboration and dedicated innovation platforms for fertilizer synergists and advanced formulation technologies, including oligosaccharide plus nutrition-oriented functional solutions.

Strength and Product System

Core lines include large, medium, and trace element fertilizers, humic-acid series, amino-acid series, and organic water-soluble fertilizer products. Duofen provides one-stop integrated solutions for large agrochemical enterprises and overseas distributors.

260,000 T Annual Capacity
9 Patents National Inventions

Integrated R&D Platform

We lead through "Experience & Authority," bridging the gap between national-level research and commercial field efficacy.

  • Joint Research with the Institute of Oceanology, Chinese Academy of Sciences (CAS).
  • Official Key Laboratory of Fertilizer Synergist establishment.
  • Shandong Provincial Bio-stimulant Innovation Center unit.

Proprietary Agri-Tech

Our "Small-Molecule Organic Acid Synergy" (SMOAS) technology is field-proven to increase nutrient uptake efficiency by up to 25% while maintaining strict safety standards.

Full Technical Support for Global Partners

We provide technical matching for foliar nutrition, root fertigation, and customized stress-resistance programs.

Verified B2B Service Protocol

A transparent, ISO-certified workflow for global agrochemical sourcing.

01

Consultation

B2B technical matching and market-specific formula analysis.

02

R&D/Sample

In-house lab preparation and small-batch efficacy testing.

03

Registration

Provision of full dossier and regulatory support for local market compliance.

04

Production

Automated synthesis and packaging under strict ISO 9001 QC protocols.

ISO 9001:2015

Quality Management System Certification.

Verified Foundry

Intertek assessed Strength Factory status.

Dossier Support

Compliant regulatory dossiers for global markets.

ODM Excellence

9 Invention Patents protecting your formulas.