A bowl of bright black Ihumate seaweed micro granules showing uniform particle size and purity
Ihumate black micro granule seaweed extract, high active alginic acid content, fully water-soluble organic fertilizer
Ihumate black micro granule seaweed extract all standard export packaging, supports OEM & ODM customization
Precise particle size comparison of Ihumate black micro granule seaweed extract with a ruler
Water solubility test of Ihumate black micro granule seaweed extract, dissolves rapidly into clear dark solution
A bowl of bright black Ihumate seaweed micro granules showing uniform particle size and purity
Ihumate black micro granule seaweed extract, high active alginic acid content, fully water-soluble organic fertilizer
Ihumate black micro granule seaweed extract all standard export packaging, supports OEM & ODM customization
Precise particle size comparison of Ihumate black micro granule seaweed extract with a ruler
Water solubility test of Ihumate black micro granule seaweed extract, dissolves rapidly into clear dark solution

Black Seaweed Extract Micro Granules

  • Appearance: Black Micro Granules
  • Water Solubility: 100%
  • Alginic Acid: > 30%
  • Mannitol: > 2%
  • Ca/Mg/S/B: > 3%
  • pH: 8-9
Related Products
Reference price range:USD 3000 - 4200

Black Seaweed Extract Micro Granules (SEAWEED 100)

Black Seaweed Extract Micro Granules

Key specifications: Appearance: Black Micro Granules, Water Solubility: 100%, Alginic Acid: > 30%, Mannitol: > 2%, Ca/Mg/S/B: > 3%, pH: 8-9.

Suitable for professional agricultural formulations, crop nutrition and field management programs.

Black Seaweed Extract Micro Granules Specifications

Technical ParametersDetailed SpecsTesting MethodsReference Standards
AppearanceBlack Micro Granules--
Water Solubility100%Gravimetric MethodGB/T 20913
Alginic Acid> 30%SpectrophotometryNY/T 2117-2012
Mannitol> 2%--
Ca/Mg/S/B> 3%--
pH8-9Potentiometric MethodNY/T 1973-2010

Black Micro Granule Seaweed Extract - Introduction

  • 1MM Uniform Micro Granules
  • Bright black color, high purity
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Black Micro Granule Seaweed Extract - Water Solubility

  • 100% Water Soluble
  • Fast Dissolving, No Residue
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COA, TDS, MSDS & HM Test Reports

Certificate of Analysis (COA)

Certificate of Analysis: Black Seaweed Extract Micro Granules

Technical Data Sheet (TDS)

TDS: Black Seaweed Extract Micro Granules

Safety Data Sheet (MSDS)

MSDS: Black Seaweed Extract Micro Granules

Heavy Metal Test Report

Heavy Metal Test Report: Black Seaweed Extract Micro Granules

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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 key specifications?

Key specifications: Appearance: Black Micro Granules, Water Solubility: 100%, Alginic Acid: > 30%, Mannitol: > 2%, Ca/Mg/S/B: > 3%, pH: 8-9. Suitable for professional agricultural formulations, crop nutrition and field management programs.
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: Black Seaweed Extract Micro Granules

Black micro granule seaweed extract is suitable for the whole growth period of various crops and multiple fertilization scenarios, promoting rooting and seedling strengthening, improving quality and yield, enhancing stress resistance and improving soil.

Fertilizer Manufacturing & Blending

  • Granular Fertilizers:
    Easily blended into granular NPK and compound fertilizers to promote rooting and seedling strengthening and improve crop nutrient absorption.
  • Liquid Fertilizers:
    As a functional additive directly added to various liquid fertilizers due to full water solubility.
  • Organic & Biological Fertilizers:
    Enhances chelation of nutrients, synergistically improves soil conditioning, fertility, growth promotion and stress resistance.

Drip Irrigation & Hydroponics

  • Drip Irrigation Systems:
    Easily dissolved in drip irrigation systems to ensure efficient nutrient delivery to roots.
  • Hydroponics:
    Suitable for hydroponic and greenhouse cultivation.

Application Ratio Scheme

Crop NameGrowth StageApplication Ratio
RiceSeedling Stage3–5 kg/ha
Pre-budding Stage3–5 kg/ha
Filling Stage3–5 kg/ha
Sweet Corn / PeanutGrowing Period3–5 kg/ha
Wheat / CottonJointing Stage3–5 kg/ha
Pineapple / MangoFruit Expansion Stage4–6 kg/ha
Citrus / LonganBud Break Stage5–8 kg/ha
Fruit Enlargement Stage6–10 kg/ha
BananaVegetative Growth Stage5–8 kg/ha
GrapePre- and Post-flowering4–6 kg/ha
StrawberryTransplanting Stage3–5 kg/ha
Tomato / LuffaInitial Flowering Stage4–6 kg/ha
Continuous Harvest Stage4–6 kg/ha
Flowering Cabbage / Crown DaisyWhole Growth Period3–5 kg/ha
PotatoTuber Formation Stage5–8 kg/ha
Purple Sweet PotatoTuber Expansion Stage5–8 kg/ha

Product Advantages: Black Seaweed Extract Micro Granules

Black micro granule seaweed extract provides multiple key benefits for plant growth and soil health, helping to improve agricultural productivity.

1

Growth & Root Promotion

Key specifications: Appearance: Black Micro Granules, Water Solubility: 100%, Alginic Acid: > 30%, Mannitol: > 2%, Ca/Mg/S/B: > 3%, pH: 8-9.

2

Enhanced Stress Resistance

Helps crops withstand various environmental stresses, including drought, high salinity and extreme temperatures (heat or frost).

3

Improved Nutrient Uptake

As a natural chelating agent with full water solubility, it significantly improves soil nutrient availability.

4

Soil Health Improvement

Key specifications: Appearance: Black Micro Granules, Water Solubility: 100%, Alginic Acid: > 30%, Mannitol: > 2%, Ca/Mg/S/B: > 3%, pH: 8-9.

5

Disease Resistance & Quality Improvement

Strengthens the plant’s natural defense system, activates innate immune response and reduces disease incidence.

6

Green & Sustainable

Reduces reliance on synthetic fertilizers and adapts to modern fertilization methods such as drip irrigation and sprinkler irrigation.

Certifications: Black Seaweed Extract Micro Granules

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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