Shandong Changrui Biotech Co., Ltd. is one of the leading manufacturers and suppliers of polyglutamic acid water soluble fertilizer in China. Please feel free to wholesale bulk high purity polyglutamic acid water soluble fertilizer in stock here from our factory. All our raw materials are with high quality and competitive price. Contact us for pricelist.
Product Introduction
Polyglutamic Acid Water Soluble Fertilizer features high-activity γ-polyglutamic acid as the core functional component. It forms a protective hydrogel film on soil and root surface to lock water and nutrients, reduce nutrient leaching loss. It enhances nutrient translocation inside crops, improves rhizosphere microecology and boosts crop stress tolerance. As a core raw material for high-efficiency fertigation formulations, it improves fertilizer utilization efficiency, alleviates soil salinization and supports stable yield and quality upgrade for intensive planting.
Technical Specifications
|
Property |
Specification |
|
Appearance |
Light yellow to dark brown liquid or pale brown fine powder |
|
Polyglutamic Acid (γ-PGA)t |
≥5g/L (liquid) / ≥5.0% (solid) |
|
Water Solubility |
100% soluble in water |
|
Moisture |
≤5.0% |
|
Ash Content |
≤1.0% |
|
pH (1% Aqueous Solution) |
4.0–7.0 (Internal Control) |
|
Insoluble Residue |
≤0.5% (Internal Control; Industry Standard: ≤5.0%) |
|
Executive Standard |
NY 1107-2020 / NY 1429-2010 / NY/T 3831-2021 (Depends on Registration Category) |
|
PGA Content Determination |
NY/T 3039-2016 |
Health Benefits & Values
Water & Nutrient Retention in Rhizosphere
γ-PGA contains abundant hydrophilic carboxyl groups on its molecular backbone, forming a hydrogel structure that holds moisture and nutrients, reducing leaching and improving fertilizer retention in soil.
Boost Nutrient Absorption & Translocation
Weakens nutrient antagonism, accelerates upward transport of calcium, magnesium and other mineral elements inside plant tissues.
Alleviate Soil Degradation
Buffers soil pH, mitigates soil salinization and compaction, improves soil aggregate structure for healthier rhizosphere.
Enhance Crop Abiotic Stress Resistance
Forms protective layer on root surface to strengthen tolerance against drought, salt damage and low temperature stress.
Promote Root Development & Metabolic Activity
Stimulates root hair proliferation, increases root absorption area and maintains stable crop physiological metabolism.
Overdose Risk Awareness
Excessive application may cause excessive water retention in the rhizosphere. Maximum dosage should not exceed 5 times the recommended rate. High concentrations may reduce leaf SPAD values in sensitive crops. Follow recommended dosages strictly.
Core Value in Formulation Development
γ-PGA Synergistic Carrier for Nutrition
Polyglutamic acid acts as a natural multi-hydroxy chelating carrier, greatly improving the utilization rate of compound mineral nutrients.
Flexible Formula Combination
Polyglutamic Acid Water Soluble Fertilizer can be used independently or blended with macro, medium, trace elements and amino acids to create high-efficiency compound fertilizer formulas.
Excellent Compatibility With Fertigation Systems
Full water solubility and low insoluble content, suitable for drip irrigation, root drenching and foliar spraying without nozzle clogging.
Synergistic Matching With Bio-Stimulants
Compatible with amino acids, chitosan oligosaccharide and microbial agents to amplify soil conditioning and nutrient synergistic effects.
Stable Functional Activity
The polyglutamic acid structure maintains stable activity under proper storage, without easy decomposition and loss of efficacy.
End-Application Scenarios
Improve Fertilizer Use Efficiency (Core Track)
Applied in greenhouse and field fertigation to reduce nutrient runoff and enhance absorption of macro and medium elements.
Remediate Salinized & Compacted Soil
Drip or root drench for soil structure improvement.
Anti-Stress Management During Critical Growth Periods
Used before drought, low temperature or high salt conditions to strengthen root protection and reduce crop stress damage.
Compound Functional Fertilizer Development
Serves as core γ-PGA functional raw material to combine with mineral nutrients for high-efficiency synergistic fertilizer product lines.
High-Value Crop Quality Improvemen
Applied on fruits, vegetables and cash crops to improve commodity performance.
Application Advantages and Market Positioning
γ-PGA Featured Synergistic Functional Fertilizer Positioning
Focuses on nutrient retention and soil improvement as a nutrition synergist.
Natural Multi-Hydroxy Chelating Advantage
Overcomes poor mobility of calcium and magnesium, enabling secondary nutrient translocation.
Dual Benefits of Soil Conditioning & Crop Nutrition
Not only improves soil physical and chemical properties, but also assists crops to absorb nutrients and resist adverse environments.
Wide Adaptability Across Crop Systems
Polyglutamic Acid Water Soluble Fertilizer suitable for orchards, greenhouse vegetables, field crops and seedlings, compatible with modern precision fertigation.
FAQ (Technical Q&A)
Q1: How does this product differ from amino acid water soluble fertilizers?
A: Amino acid fertilizer mainly supplies small-molecule organic nutrition for plant protein synthesis. This product is dominated by γ-PGA, focusing on water and nutrient locking, soil improvement, and promoting internal nutrient translocation in crops.
Q2: What is the optimal application rate for drip irrigation and foliar spray?
A: For drip irrigation, dilute 300–500 times; apply 3–5 kg per mu per application. For foliar spray, dilute 500–800 times. Adjust based on crop type, soil conditions, and growth stage. Maximum dosage should not exceed 5 times the recommended rate.
Q3: What are the symptoms of polyglutamic acid fertilizer overdose, and how to avoid it?
A: Overdose may cause excessive water retention in the rhizosphere, affecting nutrient balance. In sensitive crops, high concentrations may reduce leaf SPAD values. Follow recommended dosages strictly and avoid repeated over-application.
Q4: Can it be tank-mixed with microbial inoculant fertilizer?
A: Yes, they can be applied together. Polyglutamic acid optimizes rhizosphere environment and provides favorable conditions for the propagation of beneficial microorganisms.
Q5: What are the key quality indicators to check when sourcing this product?
A: Check γ-PGA content (liquid: ≥5 g/L; solid: ≥5.0%), water insoluble matter, pH range, and compliance with GB 38400-2019 and NY 1110-2010 for heavy metal limits. The product should also carry a valid fertilizer registration certificate corresponding to its nutrient composition.
Q6: Does the registration category of this product affect its quality standards?
A: Yes. Registration category determines the applicable standard. Products with polyglutamic acid plus macro elements follow NY 1107-2020; with medium elements, NY 2266-2012; with trace elements, NY 1428-2010; as organic water-soluble fertilizer, NY/T 3831-2021. Verify the registration certificate before purchase.
Q7: What are the storage requirements for this product?
A: Store sealed in a cool, dry, ventilated warehouse away from high temperature and strong sunlight to protect polyglutamic acid activity. Shelf life is typically 2 years under proper conditions.
Q8: What crops have shown the best response to polyglutamic acid fertilizer application?
A: Field trials show strong responses on fruit trees, vegetables, and cash crops. It is particularly effective for improving fertilizer use efficiency in fertigation programs and remediating salinized or compacted soil.
Q9: Can it be used in organic agriculture?
A: It depends on raw material source and local organic certification standards. Qualified polyglutamic acid grades are permitted for organic planting programs. Check with local certification bodies for approval status.
Q10: What is the core market positioning of Polyglutamic Acid Water Soluble Fertilizer?
A: As a synergistic functional fertilizer raw material for modern precision agriculture, it uses γ-polyglutamic acid to lock rhizosphere water and nutrients for fertigation and foliar feeding. With the capacity to reduce nutrient loss and ameliorate degraded soil, it acts as a premium synergistic base material for developing high-efficiency compound water-soluble fertilizer products.
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