Product Description:
Our potassium fulvate hollow granules are made from lignite and
weathered lignite using a high-tower spray drying process.The
hollow particles feature a porous outer shell and a hollow inner
cavity, which not only increases the specific surface area for
better nutrient adsorption and release but also enhances water
retention and soil aeration. It ensures uniform dispersion in soil
or water-based systems, avoiding clumping . Free from heavy metals,
harmful pathogens, and synthetic additives, it aligns with global
organic agriculture standards, making it a safe choice for both
conventional and organic farming, as well as environmental
remediation projects.
Product Functions:
1. Soil Health Enhancement: The hollow particles penetrate deep into the soil, loosening
compacted soil layers and improving soil structure. They stimulate
the reproduction of beneficial microorganisms (such as rhizobia and
mycorrhizal fungi), enhancing soil fertility and reducing
soil-borne diseases. Additionally, the porous shell absorbs excess
salts in saline-alkali soils, regulating soil pH and creating a
favorable growth environment for crops.
2. Efficient Nutrient Absorption & Utilization: As a natural chelating agent, potassium fulvate in the hollow
particles binds to essential nutrients (such as nitrogen,
phosphorus, potassium, iron, zinc, and manganese), converting them
into forms that are easily absorbed by crop roots. The hollow
cavity also acts as a "nutrient reservoir," releasing nutrients
slowly and continuously throughout the crop growth cycle, ensuring
long-term nutrient supply and preventing nutrient deficiency or
excess.
3. Stress Resistance & Crop Quality Improvement: The bioactive components in the product enhance crop resilience to
various environmental stresses, including drought, waterlogging,
high/low temperatures, and pest infestations.
4. Environmental Protection & Sustainability: By reducing the need for chemical fertilizers and pesticides,
Potassium Fulvate Hollow Particle minimizes agricultural non-point
source pollution, protecting groundwater and ecological systems.
Technical Parameters:
Potassium Fulvate Hollow particle
CAS: 479-66-3
HS: 31059090
Standard:HG/T 5334-2018
| Item | Indicators |
| Humic Acid (dry basis) | ≥55% |
| Fulvic Acid (dry basis) | ≥50% |
| Organic matter (dry basis) | ≥75% |
| Potassium (K2O dry basis) | 12% |
| Water Solubility | 100% |
| pH | 9-11 |
| Moisture | ≤12% |
Applications:
1. Field Crops: Ideal for rice, wheat, corn, cotton, soybeans, and other staple
crops. Applied during sowing (as a seed treatment or base
fertilizer) or during key growth stages (as a topdressing or foliar
spray), it improves yield by 10-15% and enhances crop resistance to
adverse weather conditions.
2. Cash Crops: Highly effective for fruits (apples, oranges, grapes,
strawberries), vegetables (tomatoes, cucumbers, peppers), and
economic plants (tobacco, tea, medicinal herbs). It enhances fruit
coloring, increases sugar content, and reduces the incidence of
physiological diseases (such as blossom-end rot in tomatoes).
3. Horticulture & Turf Management
4. Greenhouses & Nurseries: Used in soilless culture (hydroponics, substrate culture) or
potted plants, it provides balanced nutrients and improves subst
