1、Multi
In this study, we validated the promotion effect of potassium fulvic acid, γ-Polyglutamic acid, and soymilk root irrigation practices that were popularised during tobacco planting in China through field experiments in the same place at different growth stages.
2、Pre
To test this assumption, four rooting promotion substances, i.e., rooting promotion powder, biochar, organic fertilizer, and potassium fulvic acid, were applied before top grafting, and the effects on biometric and physiological parameters were analyzed after top grafting.
3、Synergistic Effects of Combined Endophytic Bacteria and Potassium
To study the synergistic effects of co-application of potassium fulvate acid and endophytic bacteria on the growth and physiology of sugarcane at the seedling stage. A pot experiment was...
4、Fulvic Acid and Potassium Application to Mitigate Drought Effects on
Two field experiments were conducted during the summer seasons of 2023 and 2024, using the sweet potato cultivar Aibs. Six treatments were applied in a randomized complete block design with three replicates.
Effects of Different Root
In conclusion, TPGA and TSRI treatments could promote root development and potassium accumulation of tobacco plants, and improve absorption and transport capacity of tobacco plants at mature stage, and finally improve potassium content of flue-cured tobacco leaves.
Potassium fulvic acid alleviates salt stress of citrus by regulating
In this study, microcosmic experiments were conducted to verify the effect of PFA on citrus. Trifoliate orange (Poncirus trifoliata), the most important citrus rootstock, was used to evaluate the effect of PFA on salt damage.
Effects of potassium fulvic acid and potassium humate on microbial
In summary, our study demonstrated that the addition of BSFA and KHM increased the nutrients in the ginseng soil and reshaped the microbial function in soils, providing a theoretical foundation for soil improvement and biological control of ginseng diseases.
Potassium fulvic acid alleviates salt stress of citrus by regulating
In this study, microcosmic experiments were conducted to verify the effect of PFA on citrus. Trifoliate orange (Poncirus ), the most important citrus rootstock, was trifoliata used to evaluate the effect of PFA on salt damage.
(PDF) Pre
To test this assumption, four rooting promotion substances, i.e., rooting promotion powder, biochar, organic fertilizer, and potassium fulvic acid, were applied before top grafting,...
Potassium Fulvic Acid and Arbuscular Mycorrhizal Fungi Amendments
Seedling biomass, endogenous hormones content and physicochemical parameters of vermicompost substrate were determined in this study. The results indicated that both potassium fulvic acid and AM fungi improved seedling biomass (both shoot and root) of watermelon.
Potassium fulvic acid (PFA) is a natural organic substance commonly used in agriculture to promote plant growth and enhance soil fertility. Rich in trace elements and nutrients, it improves soil structure, increases beneficial microorganisms, and accelerates root development and plant growth. Below are several methods for using PFA to promote root growth:
1. Mixing Potassium Fulvic Acid with Water
Preparation Method
- Dissolve the appropriate amount of PFA powder in water according to product instructions. A typical dilution ratio is 1:20 to 1:30 (PFA:water). Stir thoroughly to ensure complete dissolution and uniformity.
Application Method
- Evenly spray or pour the prepared PFA solution around the plant roots, targeting areas requiring enhanced growth. Use a sprayer for precision or direct application, keeping adequate distance to avoid root burn.
Usage Frequency
- Apply weekly during active growth seasons (e.g., spring/summer) and biweekly during slower periods (e.g., winter).
Precautions
- Avoid overapplication, as excess PFA may harm plants. Monitor plant responses and adjust strategies if abnormalities arise.
2. Combining Potassium Fulvic Acid with Organic Fertilizers
Preparation Method
- Mix PFA with organic fertilizers (e.g., chicken manure, cow dung) at a 1:10 ratio (PFA:organic fertilizer). Ensure thorough grinding and homogenization.
Application Method
- Spread the mixture evenly around plant roots, focusing on growth-priority areas. For improved efficiency, combine with PFA solution.
Usage Frequency
- Apply weekly during growth seasons and biweekly during slower periods.
Precautions
- Use high-quality organic fertilizers and avoid expired/low-grade products. Follow the principle of "moderation" to prevent soil nutrient imbalance.
3. Integrating Potassium Fulvic Acid with Soil Amendments
Preparation Method
- Blend PFA with soil amendments at a 1:20 ratio (PFA:amendment). Ensure the amendment is finely ground and well-mixed.
Application Method
- Sprinkle the mixture around plant roots, prioritizing weak or stressed areas. Combine with organic fertilizers for synergistic effects.
Usage Frequency
- Apply weekly during growth peaks and biweekly during slower phases.
Precautions
- Select reliable soil amendments and avoid overuse, which may disrupt soil nutrient balance.
The three methods above effectively leverage PFA to boost root development, improve soil structure, and increase beneficial microbes. adjust application practices based on specific plant species, soil conditions, and growth stages to optimize results.

