
Alginic Acid + Polysaccharides Black Micro-Granules: High-Activity Natural Seaweed Weakly Acidic Biostimulant
The scientific combination of alginic acid + polysaccharides (>30%, core advantage), nitrogen (>3%), potassium (>18%) and organic matter (>30%) features a uniform 1mm black micro-granule form, with 100% water solubility and a mild pH 8-9 formula. Using a concentrated purification process, it retains the native active nutrients of natural seaweed, achieving multidimensional synergy of "seaweed active stimulation + macro, secondary and micronutrient supply + organic matter soil nourishment and root protection". It provides balanced and stable nutrients with high absorption and utilization rates, integrating multiple benefits such as growth promotion, stress resistance, soil improvement, seedling strengthening and quality enhancement.
1. Synergistic nutrient ratio, efficient absorption for growth: With high-content alginic acid and polysaccharides as the core functional carriers, combined with a high-potassium formula and slow-release nitrogen source, it comprehensively supplies key nutrients during crop growth periods. The high-concentration organic matter provides long-term fertilizer retention, reducing nutrient leaching loss and breaking the bottleneck of nutrient fixation in soil. The 1mm black fine micro-granules have uniform texture and excellent dispersibility. Being 100% water-soluble with no precipitation or residue, they dissolve and penetrate quickly, activate beneficial soil microorganisms, alleviate nutrient antagonism, promote rapid nutrient transport and absorption, and support healthy plant growth.
2. Soil improvement: The product has a stable pH of 8-9, weakly acidic, which can specifically adjust the pH of alkaline soils and balance soil physicochemical properties. The organic matter combined with green micro-granules promotes the formation of soil aggregate structure, loosens and activates the soil, improves aeration, water and nutrient retention, while nourishing beneficial soil microorganisms, accelerating microbial reproduction, and optimizing the rhizosphere microecology. It achieves dual effects of "biological activation + structural improvement" for soil improvement, suitable for various soil types including sandy soil.
3. Synergistic root promotion: Rapid root formation and long-term vitality maintenance. The small molecular active substances of alginic acid + polysaccharides quickly stimulate the emergence of crop capillary roots and lateral roots, showing noticeable effects within a few days after planting, with a significant increase in root quantity. Nitrogen supports root cell division, potassium enhances root stress resistance toughness, and the black micro-granules optimize rhizosphere nutrient supply. The four work synergistically to achieve "rapid root promotion and long-term root strengthening", maintaining root vitality until the final harvest stage and preventing premature crop aging.
4. Pathogen inhibition and disease resistance: Enhancing stress resistance and disease control. Alginic acid + polysaccharides activate the crop’s own immune system, regulate soluble sugar permeability, and enhance the plant’s ability to recognize and resist stresses such as drought, extreme temperatures, salinity and alkalinity. They inhibit the reproduction of harmful microorganisms, reduce the incidence of soil-borne diseases, suppress pathogen growth, forming a dual stress resistance line, and minimize yield losses caused by stress and disease.
5. Quality and efficiency improvement: Yield optimization and convenient application. The synergy of alginic acid + polysaccharides with nitrogen and potassium stimulates crop photosynthesis, promotes nutrient accumulation, improves fruit sugar content and quality, and extends shelf life. The black micro-granules have uniform particle size, are easy for large-scale broadcasting with no dust, and are 100% water soluble with no residue, allowing precise dosage control and reducing planting costs. Suitable for key growth stages such as seedling and flowering.
Expert advice: Suitable for various crops. It is recommended to dissolve in advance for drip irrigation or flushing; it can also be used for foliar spraying or broadcasting. Application during critical growth periods (post-transplant recovery, flowering and fruit set) yields better results. Combining with organic microbial fertilizers further enhances microbial synergy, achieving reduced input with increased efficiency and improved quality.
| Technical Parameters | Detailed Specs | Testing Methods | Reference Standards |
|---|---|---|---|
| Appearance | Black Micro Granules | - | - |
| Water Solubility | 100% | Gravimetric Method | GB/T 20913 |
| Alginic Acid + Polysaccharides | > 30% | Spectrophotometry | NY/T 2117-2012 |
| Nitrogen | > 3% | Titration after Distillation | GB/T 8572 |
| Potassium Oxide | > 18% | Flame Photometry | GB/T 8574 |
| Organic Matter | > 30% | Potassium Dichromate Oxidation – External Heating | NY/T 1978-2010 |
| pH | 8-9 | Potentiometric Method | NY/T 1973-2010 |
Certificate of Analysis: Black Seaweed Extract Micro Granules
TDS: Black Seaweed Extract Micro Granules
MSDS: Black Seaweed Extract Micro Granules
Heavy Metal Test Report: Black Seaweed Extract Micro Granules
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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.
| Crop Name | Growth Stage | Application Ratio |
|---|---|---|
| Rice | Seedling Stage | 3–5 kg/ha |
| Pre-budding Stage | 3–5 kg/ha | |
| Filling Stage | 3–5 kg/ha | |
| Sweet Corn / Peanut | Growing Period | 3–5 kg/ha |
| Wheat / Cotton | Jointing Stage | 3–5 kg/ha |
| Pineapple / Mango | Fruit Expansion Stage | 4–6 kg/ha |
| Citrus / Longan | Bud Break Stage | 5–8 kg/ha |
| Fruit Enlargement Stage | 6–10 kg/ha | |
| Banana | Vegetative Growth Stage | 5–8 kg/ha |
| Grape | Pre- and Post-flowering | 4–6 kg/ha |
| Strawberry | Transplanting Stage | 3–5 kg/ha |
| Tomato / Luffa | Initial Flowering Stage | 4–6 kg/ha |
| Continuous Harvest Stage | 4–6 kg/ha | |
| Flowering Cabbage / Crown Daisy | Whole Growth Period | 3–5 kg/ha |
| Potato | Tuber Formation Stage | 5–8 kg/ha |
| Purple Sweet Potato | Tuber Expansion Stage | 5–8 kg/ha |
Black micro granule seaweed extract provides multiple key benefits for plant growth and soil health, helping to improve agricultural productivity.
High content of alginic acid and polysaccharides synergize with nitrogen and potassium to effectively stimulate plant growth and develop strong, robust roots.
Helps crops withstand various environmental stresses, including drought, high salinity and extreme temperatures (heat or frost).
As a natural chelating agent with full water solubility, it significantly improves soil nutrient availability.
Effectively boosts soil fertility by increasing organic matter and promoting microbial activity.
Strengthens the plant’s natural defense system, activates innate immune response and reduces disease incidence.
Reduces reliance on synthetic fertilizers and adapts to modern fertilization methods such as drip irrigation and sprinkler irrigation.
Ihumate is backed by globally recognized certifications.
