Potassium Fulvate (K-Fulvate) is a highly water-soluble organic potassium fertilizer derived from natural minerals or biological humic substances. It is rich in fulvic acid, potassium, and essential trace elements, playing a crucial role in improving soil structure, enhancing nutrient uptake, and strengthening crop resilience. Its multifunctionality extends beyond agriculture into areas such as water-soluble fertilizers, soil remediation, and ecological farming, making it an indispensable component of modern agriculture.
The commonly referenced term "Fulvic Acid" belongs to the humic substances family, specifically referring to Potassium Fulvate in agricultural applications.
🔬 What Are Humic Substances?
Humic substances are natural organic compounds formed from the long-term decomposition of plant and animal residues. These substances are known for their ability to improve soil structure, increase nutrient efficiency, and promote plant growth. They are classified into three primary categories:
Fulvic Acid (FA)
Humic Acid (HA)
Humin
📌 Fulvic Acid vs. Humic Acid vs. Humin
Properties | Fulvic Acid (FA) | Humic Acid (HA) | Humin |
Color | Yellow-brown | Dark brown/black | Black |
Molecular Weight | Lowest, easily absorbed | Higher, slow-release | Highest, resistant to degradation |
Water Solubility | Soluble at all pH levels | Soluble only in alkaline conditions | Insoluble in water |
Bioactivity | Highest, readily absorbed by plants | Moderate, slow but long-lasting effects | Low, primarily improves soil structure |
Primary Function | Enhances nutrient uptake, boosts plant resilience | Improves soil quality, increases fertilizer efficiency | Increases soil organic matter, enhances soil properties |
Application | Drip irrigation, foliar spraying, water-soluble fertilizers | Base application, fertigation, granular fertilizers | Long-term soil amendment |
🔹 Key Differences Between Fulvic Acid and Humic Acid:
Solubility: Fulvic acid is fully water-soluble at all pH levels, making it ideal for precision irrigation and fertigation systems. Humic acid dissolves only under alkaline conditions and is more suited for soil amendment.
Absorption Efficiency: Due to its low molecular weight, fulvic acid can be directly absorbed by plants, whereas humic acid acts more gradually by improving soil properties and slowly releasing nutrients.
Application Methods: Fulvic acid is preferred for foliar spraying, drip irrigation, and fertigation, whereas humic acid is best suited for granular fertilizers and soil application.
🌱 Major Applications of Potassium Fulvate
1️⃣ Crop Farming:
✅ Enhances crop yield and quality: Increases fruit sugar content, improves taste and appearance, and enhances market value.
✅ Strengthens plant resilience: Boosts resistance to drought, cold, and salinity, reducing pest and disease incidences.
✅ Improves fertilizer efficiency: Reduces nutrient loss, increases the absorption rate of fertilizers by 20-30%, and lowers fertilization costs.
🔹 Applicable Crops🌾
Field Crops: Rice, wheat, maize, soybeans, cotton, rapeseed, etc.🍊
High-Value Crops: Citrus, grapes, strawberries, apples, tea, tobacco, etc.
📌 Application Methods
Drip Irrigation/Fertigation: 1-2 kg per acre, applied 2-3 times per season.
Foliar Spraying: Diluted 800-1000 times, applied every 7-15 days.
2️⃣ Greenhouse Cultivation:
✅ Promotes root development, improves nutrient uptake, and prevents replanting diseases.
✅ Optimizes greenhouse soil conditions, reducing salt accumulation.
✅ Strengthens disease resistance, reduces pesticide dependency, and enhances crop quality.
🔹 Applicable Crops: Cucumbers, tomatoes, bell peppers, strawberries, leafy greens, etc.
📌 Application Methods
Drip Irrigation/Fertigation: 1-2 kg per acre, applied 2-3 times per season.
Foliar Spraying: Diluted 800-1000 times, applied every 10-15 days.
3️⃣ Soil Remediation:
✅ Restores degraded soils, increases soil organic matter.
✅ Improves saline-alkaline soils, mitigates acidification, and enhances soil fertility.
✅ Stimulates microbial activity, boosting soil ecology and fertility.
🔹 Suitable for: Over-fertilized lands, saline-alkali soil reclamation, desertification control.
📌 Application Methods
Fertigation/Drip Irrigation: 2-3 kg per acre, applied 1-2 times per quarter.
Soil Blending: Combined with organic fertilizers, 5-10 kg per acre.
4️⃣ Ecological & Organic Farming:
✅ Reduces chemical fertilizer dependency, aligning with organic farming standards.
✅ Enhances crop immunity, ensuring high-quality, export-grade agricultural products.
🔹 Applicable Crops: Organic vegetables, fruits, grains, medicinal herbs.
📌 Recommended Combinations
Mixed with seaweed extract and amino acid fertilizers for improved stress resistance.
Combined with biofertilizers to enhance soil microbial activity.
5️⃣ Aquaculture:
✅ Improves water ecology, reducing the proliferation of harmful algae.
✅ Decreases heavy metal ion concentrations, ensuring healthier aquatic environments.
✅ Enhances fish and shrimp survival rates by stabilizing water conditions.
📌 Application Methods
Water conditioning: 100-200g per acre, applied every 10-15 days.
Specifications
Item | Specifications |
Water Solubility | 100% |
Fulvic Acid (FA) | ≥50% |
Humic Acid (HA) | ≥55% |
Potassium (K₂O) | 10%-12% |
pH Value | 9-11 |
📈 Market Outlook & Trends
With global agriculture shifting towards sustainability and precision farming, the demand for potassium fulvate is rising, particularly in water-soluble fertilizers, organic farming, and precision fertilization.
🌍 Projected Market Growth Rate: The global fulvic acid market is expected to grow at an annual rate of 8%-12% over the next five years.
📩 Contact us today to explore the latest Potassium Fulvate solutions and pricing! 🚀
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