1、Root

A two-year field experiment was conducted to determine the effects of root-zone fertilization (RZF) and split-surface broadcasting (SSB) on grain yield, N use efficiency (NUE), and urea-15N...

2、Effects of a novel fulvic acid

Fertigation (drip irrigation with fertilization) delivers water and nutrients directly to the root zone, improving yield through optimized fertilizer use efficiency and enhanced photosynthetic performance, and has been widely adopted in agricultural practice (Wang et al., 2019; Zhang et al., 2024).

3、The Impact of Fulvic Acids on Cotton Growth, Yield and

Fulvic acid (FA) can increase soil P availability, enhancing crop yield and P use efficiency, but its interaction with P fertilization rates and potential to reduce P fertilizer application remains unclear.

(PDF) Influence of the application of fulvic acid on seedling root

Humic substances are used in agriculture to promote plant growth, especially of the root system. The aim of this work was to evaluate the effect of applying different doses of fulvic acid...

Fulvic acid alleviates the stress of low nitrogen on maize by promoting

This study investigated the effects of different FA application rates on maize growth and nitrogen utilization under low nitrogen stress. The results showed that under low nitrogen stress, FA significantly stimulated maize growth, particularly root development, biomass, and nitrogen content.

How Fulvic Acid Enhances Root Growth in Plants

By applying fulvic acid directly to the root zone, plants experience localized benefits, including immediate nutrient availability and improved hydration. This targeted approach is especially useful during periods of crop stress caused by drought or temperature fluctuations.

Fulvic Acid Improves The Fertilizer Utilization Rate Ⅰ

It converts ineffective phosphorus into adequate phosphorus and promotes phosphorus absorption by the root system. Use fulvic acid to protect water-soluble phosphorus fertilizers or phosphorus-based compound fertilizers, promote phosphorus absorption, and improve fertilizer utilization.

Effects of controlled

A split-plot field experiment was conducted in 2018–2019 to study the effects of nitrogen fertilizer types and fulvic acid (FA) rates on soil nitrogen and cotton growth.

Biochar and Fulvic Acid to Activate Soil Fertility for Achieving Agro

Results showed that N application caused soil compaction, and BC+FA treatments decreased soil bulk density (ranging from 1.22 to 1.28 g cm3) and improved water retention under the condition.

Hole fertilization in the root zone facilitates maize yield and

Generally, most fertilizer applications are still based on shallow fertilization, while concentrated deep fertilization creates a fertilizer microdomain environment in the root zone, which in turn stimulates root multiplication to promote nutrient absorption and aboveground growth (Pan et al. 2017).

Fulvic acid water-soluble fertilizer is a highly efficient nutrient source, rich in organic matter and trace elements, which promotes plant growth and development. Root-zone fertilization is a fast and effective method that delivers nutrients directly to the root zone, accelerating absorption and utilization. Below are detailed steps for rapid root-zone application:

I. Preparation

1. Select Appropriate Root-Feeding Devices: These tools, typically made of plastic or metal with multiple perforations, hold liquid fertilizer. Choose sizes based on plant dimensions and soil moisture.
2. Prepare Fulvic Acid Solution: Dissolve the fertilizer in water as per instructions, ensuring complete mixing without granular residues.
3. Prepare Soil and Containers: Line the bottom of the device with fine soil to enhance contact. Embed the device in soil without overburying, avoiding root restriction.

II. Operation Steps

1. Position the Device: Insert the tool vertically into the soil, pressing gently to ensure seamless soil contact.
2. Pour Fertilizer Solution: Slowly add the dissolved fulvic acid solution through the top opening, avoiding spillage to prevent plant damage.
3. Cover with Soil: Add soil to the device’s surface, compacting lightly to seal.
4. Water Thoroughly: Irrigate surrounding soil to facilitate deep penetration. Wait for surface drying before further steps.

III. Key Considerations

1. Avoid Over-Fertilization: Excessive doses may harm plants. Adjust gradually based on growth and soil conditions.
2. Monitor Plant Response: Watch for signs like yellowing leaves or stunted growth, indicating potential overdose or improper application. Seek expert advice if issues arise.
3. Shade from Direct Sunlight: Reduce evaporation by placing devices in shaded areas post-application.
4. Regular Inspections: Check device stability and solution absorption. Reinforce or refill as needed.
5. Ensure Ventilation: Avoid CO₂ buildup during application by maintaining airflow, especially in enclosed spaces.
6. Combine with Other Fertilizers: Supplement with NPK-rich blends for balanced nutrition, but avoid antagonistic interactions.
7. Follow Product Guidelines: Adhere to dosage, frequency, and usage instructions specific to the fertilizer brand.
8. Continuous Monitoring: Track plant health (leaf color, root development) and soil nutrients to refine application strategies.
9. Prevent Over-Fertilization: Excessive use can lead to rapid growth, leaf discoloration, or root rot. Test soil nutrients regularly.
10. Compliance with Regulations: Dispose of waste responsibly and avoid environmental contamination. Prioritize eco-friendly practices.

Root-zone fertilization with fulvic acid solution effectively nourishes plants when executed properly. success depends on integrating soil type, plant species, climate, and supplemental methods. This technique is one of many tools for optimal results.

Note: Terminology like "root-feeding device" emphasizes direct-to-root application, while "fulvic acid" specifies the organic component. Adjustments for local conditions and product-specific guidelines are critical.