Ihumate black shiny seaweed extract flakes display, no impurities
Ihumate 100% water soluble seaweed extract flakes, high activity seaweed extract
Ihumate seaweed extract flakes all specifications woven bag packaging, support OEM customization
Ihumate seaweed extract flakes thickness and size measurement display
Ihumate seaweed extract flakes water solubility test, dissolves rapidly with no precipitation
High quality seaweed extract flakes detail close-up, showcasing Ihumate purification process
Ihumate black shiny seaweed extract flakes display, no impurities
Ihumate 100% water soluble seaweed extract flakes, high activity seaweed extract
Ihumate seaweed extract flakes all specifications woven bag packaging, support OEM customization
Ihumate seaweed extract flakes thickness and size measurement display
Ihumate seaweed extract flakes water solubility test, dissolves rapidly with no precipitation
High quality seaweed extract flakes detail close-up, showcasing Ihumate purification process

Seaweed Extract Flakes

  • Appearance: 2-4 mm flakes
  • Water Solubility: 100%
  • Alginic Acid: > 18%
  • Nitrogen (N): > 2%
  • Potassium Oxide (K₂O): > 18%
  • Organic Matter: > 30%
  • pH: 8-9
Related Products
( Customer Reviews)

Seaweed Extract Flakes (SEAWEED 100)

High Alginic Acid + Balanced Nutrition + 2-4mm Flakes: Organic Biostimulant for Crop Stress Resistance & Quality Improvement

A scientific formulation of alginic acid (>18%, core advantage), nitrogen (>2%), potassium (>18%) and organic matter (>30%), featuring 100% water solubility and 2-4mm flake form. This is not a simple combination of nutrients, but a deep synergy of "highly active stress resistance + balanced nutrition supplementation + convenient flake form". Leveraging its pH 8-9 alkaline characteristics, it retains the natural biological activity of seaweed, offering multiple benefits including stress resistance, soil conditioning, and quality improvement. Suitable for various crops, it is a cost-effective input for green agriculture.

1. Mutual Enhancement: Activating Activity and Nutrient Synergy. The core advantage of alginic acid >18% activates crop defense systems and strengthens cell walls. Combined with balanced nitrogen (>2%) and potassium (>18%) supplementation, it meets crop growth needs. Organic matter (>30%) retains nutrients, reduces loss, and improves nitrogen and potassium utilization efficiency by over 13%. 100% water solubility combined with 2-4mm flakes ensures rapid, complete dissolution without residue, no need for prolonged stirring, and uniform nutrient release, allowing the active components of alginic acid and NPK nutrients to be absorbed simultaneously by crops, achieving the dual empowerment of "activity activation + nutrient supply".

2. Soil Improvement: Building a Foundation for Sustainable Farming. The product maintains a stable pH of 8-9, weakly alkaline, which can specifically adjust acidic soil pH and balance soil physical and chemical properties. Organic matter >30% significantly enriches soil organic nutrients, and together with alginic acid, promotes the formation of soil aggregate structure, enhancing soil aeration, water and nutrient retention. It also nourishes beneficial soil microorganisms, optimizes the rhizosphere microecology, and supports sustainable farming. The 2-4mm flake size ensures even distribution without localized accumulation when broadcast, suitable for various field and greenhouse planting scenarios.

3. Synergistic Root Promotion: Strengthening Absorption Capacity. Alginic acid stimulates the germination of capillary roots and lateral roots, thickens roots, and enhances root vitality, laying the foundation for nutrient absorption. Nitrogen supports root cell division, while potassium strengthens root stress resistance. The synergy of these three achieves the integration of "promoting, strengthening, and nourishing roots". The 100% water solubility allows nutrients to rapidly penetrate the root zone, combined with the convenient application of flakes, suitable for key root development stages such as post-transplanting and seedling stages.

4. Antibacterial and Disease Resistance: Enhancing Stress Resilience. Alginic acid >18% activates the crop's own immune system, strengthens cellular defense capabilities, reduces pathogen infection, and significantly improves crop tolerance to drought, cold, and salinity, alleviating growth stress caused by extreme weather and adverse soil conditions, reducing the probability of physiological diseases, aligning with the core advantages of stress resistance and immune enhancement.

5. Quality and Efficiency Improvement: Empowering High Yield and Income. The synergy of alginic acid, nitrogen, and potassium stimulates crop photosynthesis, promotes nutrient accumulation, improves fruit sugar content, firmness, and coloration, and extends shelf life. 100% water solubility ensures rapid nutrient absorption without waste. The 2-4mm flakes are easy to store, transport, and precisely dose, achieving "low dosage, high effect", balancing yield increase and quality optimization, suitable for all growth stages of various crops.

Expert Advice: Suitable for all growth stages of various crops, particularly for stress prevention, soil improvement, and quality enhancement needs. For drip irrigation or fertigation, dissolve in advance; for broadcasting, spread evenly and then plow under. Preventive application before stress conditions yields better results. Using with conventional fertilizers can further enhance fertilizer efficiency, achieving reduced input with increased efficiency and high-quality yield.

Seaweed Extract Flakes Specifications

Technical ParametersDetailed SpecsTesting MethodsReference Standards
Appearance2-4 mm flakes--
Water Solubility100%Gravimetric MethodGB/T 20913
Alginic Acid> 18%SpectrophotometryNY/T 2117-2012
Nitrogen (N)> 2%Titration after DistillationGB/T 8572
Potassium Oxide (K₂O)> 18%Flame PhotometryGB/T 8574
Organic Matter> 30%Potassium Dichromate Oxidation - External Heating MethodNY/T 1978-2010
pH8-9Potentiometric MethodNY/T 1973-2010

Seaweed Extract Flakes - Introduction Video

  • 2-4MM black shiny flakes
  • High purity
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Seaweed Extract Flakes - Solubility Video

  • 100% water soluble
  • Dissolves rapidly with no precipitation
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COA, TDS, MSDS & HM Test Reports

Certificate of Analysis (COA)

Certificate of Analysis: Seaweed Extract Flakes

Technical Data Sheet (TDS)

TDS: Seaweed Extract Flakes

Safety Data Sheet (MSDS)

MSDS: Seaweed Extract Flakes

Heavy Metal Test Report

Heavy Metal Test Report: Seaweed Extract Flakes

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Need custom documents or specific test results?

Frequently Asked Questions

Ihumate FAQ: Sourcing, organic certification, logistics, and customization.
Apply for Ihumate Free Samples: Global shipping for lab compliance testing.
1

What are the core component advantages of this product?

This product features alginic acid as the core active ingredient, which activates crop root vitality and regulates physiological metabolism. It precisely supplements potassium to support robust stems and fruit expansion. Organic matter strengthens soil fertility and improves aggregate structure. These multiple advantages form a closed loop of "soil conditioning - root promotion - nutrient supplementation - quality improvement".
2

Are you a trading company or a manufacturer?

We are a professional manufacturing enterprise. Our modern factory is located in Huozhou, Linfen, Shanxi, China. With an annual capacity of 500,000 tons, we invite global partners to visit our facility.
3

How do you perform quality control?

4

Do you provide samples?

5

What are the payment terms?

6

How can I track my shipment after payment?

7

What is the Minimum Order Quantity (MOQ)?

8

Can you customize packaging or print our logo?

9

How long is the delivery time?

More questions about our products?

Application & Dosage: Seaweed Extract Flakes

Seaweed extract flakes are suitable for various planting scenarios including field crops, greenhouses, orchards, and vegetable gardens. They can be applied independently to condition soil and supplement nutrients, or used as fertilizer additives to enhance compound fertilizer efficiency.

Fertilizer Manufacturing and Blending

  • Granular Fertilizers:
    Easily incorporated into granular NPK and compound fertilizers to enhance synergistic nutrient absorption efficiency.
  • Liquid Fertilizers:
    Easy-dissolving property makes it an ideal additive for liquid fertilizers.
  • Organic & Bio-fertilizers:
    Organic matter increases soil humus content, combined with alginic acid to activate beneficial soil microorganisms.

Drip Irrigation & Hydroponics

  • Drip Irrigation Systems:
    Dissolves easily in drip irrigation systems, ensuring efficient nutrient delivery to the root zone.
  • Hydroponics:
    Suitable for hydroponic and greenhouse cultivation.

Application Ratio Scheme

Crop NameGrowth StageApplication Ratio
RiceSeedling Stage3-5 Kg/hectare
Pre-booting Stage3-5 Kg/hectare
Filling Stage3-5 Kg/hectare
Sweet Corn/RapeseedGrowing Period3-5 Kg/hectare
Wheat/PeanutStem Elongation Stage3-5 Kg/hectare
PineappleFruit Expansion Stage4-6 Kg/hectare
Citrus/LycheeBud Break Stage5-8 Kg/hectare
Fruit Expansion Stage6-10 Kg/hectare
BananaVegetative Growth Stage5-8 Kg/hectare
GrapePre-bloom & Post-bloom4-6 Kg/hectare
StrawberryPlanting Stage3-5 Kg/hectare
Tomato/Bitter MelonEarly Flowering Stage4-6 Kg/hectare
Continuous Harvest Period4-6 Kg/hectare
Choy Sum/Kai-lanEntire Growth Period3-5 Kg/hectare
PotatoTuber Formation Stage5-8 Kg/hectare
Purple Sweet PotatoTuber Expansion Stage5-8 Kg/hectare

Product Advantages: Seaweed Extract Flakes

Seaweed extract flakes balance acid soil improvement, root promotion and potassium supplementation, stress resistance and quality enhancement, supporting ecological planting and high-quality yield.

1

Powerful Soil Improvement, Nutrient Activation

Organic matter quickly replenishes soil humus, improves aggregate structure, and alleviates compaction. Alginic acid activates fixed nutrients in the soil, enhancing their availability.

2

High Potassium Synergy, Precise Nutrition

Potassium oxide meets crop needs for fruit expansion and stem strengthening, promoting flower bud differentiation and fruit development. Nitrogen provides stable basic nutrition, working synergistically with alginic acid to improve plant vigor and ensure balanced nutrient supply.

3

Enhanced Stress Resistance, Robust Growth

Alginic acid stimulates crop stress resistance genes, improving drought, cold, and disease tolerance. High potassium strengthens stem toughness and lodging resistance, helping crops grow robustly under extreme conditions and reducing flower and fruit drop.

4

Quality and Yield Improvement, Enhanced Value

Nutrients dissolve rapidly and release evenly. Alginic acid improves fruit quality, while high potassium increases fruit sweetness and coloration, reduces deformed fruits, extends shelf life, and significantly enhances the commercial value and total yield of agricultural products.

5

Easy-to-Apply Flakes, Wide Adaptability

The 2-4mm flakes are uniform in size, 100% water soluble, and can be broadcast, applied via fertigation, drip irrigation, or mixed with fertilizers. Suitable for various scenarios including field crops, greenhouses, and orchards, compatible with diverse crop cultivation needs.

Certifications: Seaweed Extract Flakes

Ihumate is backed by globally recognized certifications.

  • 🏅 OMRI Listed – Approved for organic use (USDA/NOP standards)
  • 🏅 CERES Certified – High-standard organic inputs for sustainable agriculture
  • ✔ Excellent international production process with full batch traceability
  • ✔ Meeting the strict demands of global distributors and formulators
Ihumate OMRI certificate proving compliance with USDA/NOP organic standards.
Ihumate Potassium Humate CERES organic certificate for EU and NOP standards.
Ihumate Potassium Fulvate CERES organic certificate ensuring global export quality.
Ihumate Mineral Humic Acid CERES organic certificate for high-end agriculture.
Ihumate Mineral Fulvic Acid CERES organic certificate for EU and NOP compliance.
Ihumate Sodium Humate CERES certificate for aquaculture, feed, and industrial use.
Ihumate Seaweed Extract CERES organic certificate, rich in natural hormones.

Ihumate Global Exhibition Videos

We showcase our Humic Acid, Seaweed, Liquid Fertilizer, and Bio-control series globally.
Join us at our 2026 exhibitions:
Event: Shanghai CAC (Fshow)
Booth: 12G05
Date: March 17-19, 2026
Address: No. 333 Songze Avenue, Qingpu District, Shanghai
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