4 Features About Fulvic Acid

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Increases nutrient efficiency

Improves root development

Enhances soil microbes

Boosts stress tolerance

Our Fulvic Acid Fertilizer Product Range

Rutom Bio. is a fulvic acid manufacturer and can offer high-quality Fulvic Acid Fertilizer with excellent results in agriculture.

What is Fulvic Acid for Plants?

Fulvic acid, also called FA, is the core component of humic acid with the smallest molecular weight, highest water solubility, and strongest activity. It is widely present in natural materials such as soil, peat, and weathered coal, serving as a commonly used biostimulant and fertilizer enhancer in agriculture. Formed through the long-term microbial decomposition and transformation of plant and animal remains, along with a series of chemical processes, it constitutes an essential component of soil organic matter.

How Does It Work?

Because fulvic acid has a low molecular weight, generally less than 10,000 Daltons, it can easily penetrate plant cell membranes. Due to this features, it can help the plant transfer the nutrients directly to where needed.

So it is widely used in agriculture, such as for base fertilizer to improve soil health, and used for foliar spray, which can be quickly absorbed by plants. Also can be used for drip irrigation and fertigation; the precision fertilization can reduce waste and is ideal for the environment.

Fulvic Acid for Plants

Key Benefits of Fulvic Acid Fertilizer

Our products are derived from natural substances that are naturally rich in humic acid (with a content of 18-25%) and undergo a specialized processing technique to maximize the retention of their biological activity.

Nutrient Activation & Efficient Absorption

  • Powerful Chelating Action: Forms stable, soluble chelates with mineral elements like iron, zinc, and phosphorus to prevent nutrient fixation and enhance utilization rates.
  • Nutrient Carrier: Transports over 70 minerals and trace elements to plant roots, promoting absorption.
  • Boosts Leaf Photosynthesis: Enhances uptake of key elements like iron and magnesium to increase chlorophyll synthesis.

Soil Improvement & Health:

  • 土壌構造を改善する: Promote aggregate formation, alleviate compaction, enhance aeration and water retention
  • Regulate soil pH: Buffers acidity and alkalinity fluctuations, creating an optimal growing environment for plants
  • Activate soil microorganisms: Provides carbon sources, promotes beneficial microbial proliferation, and boosts soil vitality
Fulvic acid fertilizer benefits

Plant Growth Regulation & Stress Tolerance:

  • Promotes root development: Stimulates root hair growth, increases absorption surface area, and enhances water and nutrient uptake capacity
  • Enhances stress tolerance: Reduces stomatal opening during drought (known as “Drought Tolerance No. 1”), improves cold and salt tolerance
  • Boosts yield and quality: Promotes flower bud differentiation, increases fruit set rate, and improves fruit flavor and nutritional content

Improve Fertilizer & Application Reduction:

  • Reducing Chemical Fertilizer Use: Improve fertilizer utilization, minimize loss, and reduce environmental pollution
  • Synergistic Application with Pesticides: Enhance pesticide efficacy, lower pesticide residues, and improve safety

Fulvic Acid Application & Dosage

About how to use fulvic acid, it can be use for many fields, such as soil amendment for agriculture, aquaculture, husbandry and health care, etc.

Fulvic acid for agriculture

Fulvic Acid for Agriculture

Fulvic Acid for Aquaculture

Fulvic Acid for Aquaculture

Fulvic Acid for Husbandry

Fulvic Acid for Husbandry

Fulvic Acid for Pharmaceutical

Fulvic Acid for Pharmaceutical

Application Methods & Dosage

Soil Application

  • Pre-plant: 5-15 kg/ha Potash Fulvate, incorporate 10-15 cm deep
  • Side-dress: 3-8 kg/ha during active growth

Fertigation & Drip Irrigation

  • Dilute and inject 2-5 kg/ha weekly
  • Apply during first 30-60 minutes of irrigation
  • Compatible with water-soluble NPK
  • Maintain pH 5.5-6.5

Foliar Spray

  • Apply 1-2 kg/1000L water early morning/late afternoon
  • Frequency: Every 7-14 days during growth
  • Enhances uptake of tank-mixed nutrients by 10-20%

Crop-Specific Rates

  • Field Crops: 5-15 kg/ha soil + 1kg per 100kg urea mix
  • Vegetables: 2-5 kg/ha weekly drip + 1.5 kg/1000L foliar
  • Fruit Trees: 10-20 kg/ha at bud break and fruit set
  • Greenhouse: 50-100 mL/1000L continuous or 1 kg/1000L foliar

Humic vs Fulvic Acid: What’s the Difference?

多くの人やガーデニング初心者は、フミン酸とフルボ酸を混同しがちです。見た目は似ていますが、どちらも同じ腐植物質から作られているため、同じ由来です。しかし、これらは明確に異なる物質です。主な違いは、分子の大きさと水への溶けやすさです。

フミン酸とフルボ酸の違い:

特性 フルボ酸 フミン酸 Combined
Molecular Weight <10,000 Daltons 10,000-100,000 Daltons Complete coverage
溶解度 100% water-soluble (all pH) Alkaline only Works at all pH levels
Primary Function Nutrient transport & uptake Soil structure improvement Comprehensive support
Plant Penetration Enters cells directly Remains in soil/root zone Internal + external
最適な用途 Foliar, drip, hydroponic Soil broadcast, incorporation All application methods

FAQs About Fulvic Acid

  • Fertilizer synergist (maximize NPK efficiency)
  • Soil improvement (structure, CEC, microbes)
  • Foliar carrier and activator
  • Stress mitigation (drought, salinity)
  • Organic farming (ECOCERT certified input)

Yes. Our fulvic acid is ECOCERT certified, complying with EU Organic, USDA NOP, and JAS standards. We also hold CERES certification for organic input materials, making our products suitable for certified organic agriculture worldwide.

  • Biochemical foliar: 3-5 days (visible greening)
  • Mineral fertigation: 7-14 days (root growth)
  • Soil applications: 14-30 days (soil health)
  • Full yield impact: At harvest (12-28% typical)

Mineral-sourced fulvic acid is extracted from leonardite and excels in soil improvement and long-term fertility. Biochemical fulvic acid is produced through enzymatic hydrolysis of plant materials and offers rapid plant response (3–5 days) and strong microbial activity. Both are ECOCERT certified.

Fulvic acid chelates nutrients, forming stable complexes that prevent them from being tied up in the soil. This increases nitrogen efficiency by 20–35%, phosphorus availability by 40–50%, and micronutrient uptake by 50–150%, leading to reduced fertilizer waste and cost savings.

It can be applied via:

  • Soil incorporation: 5–15 kg/ha before planting

  • Fertigation/drip: 2–5 kg/ha weekly

  • Foliar spray: 1–2 kg per 1000L water every 7–14 days

  • Mixing with urea: 1 kg per 100 kg urea (5% blend)

Yes, fulvic acid is highly compatible with NPK fertilizers, micronutrients, biological products, and most pesticides. It acts as a synergist, improving the efficiency of tank-mixed inputs by 10–20%.

Yes. Fulvic acid improves plant stress tolerance by enhancing water retention and nutrient mobility. It can maintain 85–90% yields with 30–40% less water and enables production in marginal or saline soils.

All crop types see improvements:

  • Field crops: +12–18% yield

  • Vegetables: +15–28%

  • Fruit trees: +14–22%

  • Greenhouse crops: +18–25%
    It also improves quality traits like sugar content, color, and shelf life.

Despite a higher per-kg cost, fulvic acid delivers a 3:1 to 5:1 ROI through:

  • 15–30% reduced fertilizer requirements

  • 25–40% improved nutrient efficiency

  • 12–28% higher yields

  • Better crop quality and premium pricing potential

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