The health of the soil is crucial for achieving agriculture that is both sustainable and economically viable. Soils that are rich in nutrients, well-structured, and balanced biologically can support strong crops that better withstand challenging environmental conditions and produce higher yields. Within this framework, humic extracts have emerged as valuable tools for farmers and agricultural experts who are looking for natural and efficient ways to restore exhausted soils and enhance crop productivity.
Humic extracts originate from the decomposition of organic materials found in nature. These extracts are mainly produced by processing humus-rich sources such as leonardite, peat, or lignite. Through alkaline extraction and concentration techniques, the main components—humic acids, fulvic acids, and humins—are separated.
Humic acids play a key role in enhancing soil quality by improving its texture, boosting water retention, and encouraging microbial life. Fulvic acids, which are smaller molecules and more water-soluble, help plants quickly absorb nutrients and support the development of roots and metabolic activities. Humins, on the other hand, are the portion that does not dissolve and remains stable in soil over a long period, helping to maintain soil structure and act as a reservoir of carbon, although their direct effect on plant nutrition is limited.
In farming, humic and fulvic acids are commonly utilized because they dissolve easily and act quickly, while humins contribute more to the soil’s long-term recovery by strengthening its physical makeup.
When combined, these substances provide a complementary effect that enriches soil fertility and promotes robust, healthy plant growth.
Humic substances (HS) are relatively recalcitrant colored organic compounds naturally formed during long-term decomposition and transformation of biomass residues. The color of humic substances varies from bright yellow to light or dark brown leading to black. The term comes from humus, which in turn comes from the Latin word humus, meaning “soil, earth”.[1] Humic substances constitute the majority of organic matter in soil, peat, coal, and sediments, and are important components of dissolved natural organic matter (NOM) in lakes (especially dystrophic lakes), rivers, and sea water. Humic substances account for 50 – 90% of cation exchange capacity in soils. “Humic substances” is an umbrella term covering humic acid, fulvic acid, and humin, which differ in solubility.

the difference between fulvic acid and humic acid
| Feature | Fulvic Acid | Humic Acid |
| Solubility | Soluble in water at all pH levels | Soluble in water only at neutral and alkaline pH; insoluble at pH < 2 |
| Molecular Size | Smaller molecules, lower molecular weight | Larger molecules, higher molecular weight |
| Color | Usually yellow to golden yellow | Typically darker, brown to black |
| Role in Soil | Helps rapid nutrient absorption and supports root growth | Improves soil structure, water retention, and stimulates microbial activity |
| Water Solubility | Soluble under all pH conditions | Soluble only in neutral and alkaline conditions |
| Effect on Plants | Enhances nutrient uptake and root development | Improves overall soil quality and plant health |
Integrating humic extracts into farming management strategies is crucial not only for boosting crop yields and profitability but also as a vital move towards achieving sustainable agriculture. By revitalizing the soil, enhancing its natural capabilities, and lessening reliance on synthetic fertilizers, farmers play an important role in protecting the environment and securing productivity over the long term.
In line with these principles, ALMENDO HUMI POWDERA, ALMENDO HUMI PLUS and ALMENDO HUMIC are advanced humic-based products that deliver targeted benefits for both the soil and plants, making them ideal components of modern, sustainable agricultural programs.
ALMENDO HUMI POWDERA high-performance formulation designed to regenerate depleted soils and support plant growth, ALMENDO HUMI POWDER offers the following benefits:
- Balances soil pH, creating a more favorable environment for nutrient uptake.
- Reduces soil salinity, helping mitigate salt stress which is common in arid and over-irrigated regions.
- Increases plant resistance to drought stress, promoting stronger crops under water-limited conditions. • Improves seed germination, leading to more uniform and vigorous plant establishment.
- Chelates essential nutrients, enhancing their availability and mobility in the soil.
- Improves soil physical structure, allowing better aeration and water infiltration.
- Boosts organic matter content, which is vital for soil fertility and long-term productivity.
ALMENDO HUMI PLUS / ALMENDO HUMIC This enhanced formulation focuses on improving both soil vitality and root performance:
- Balances soil pH, promoting healthier nutrient interactions in the rhizosphere.
- Improves water and nutrient retention, reducing leaching and increasing efficiency of inputs.
- Stimulates beneficial microbial activity, leading to a more biologically active soil ecosystem.
- Enhances root growth and function, resulting in improved water and nutrient absorption by plants.
ALMENDO HUMI POWDERA, ALMENDO HUMI PLUS and ALMENDO HUMIC are a true embodiment of the intelligent use of humic substances in modern agriculture — a blend of cutting-edge science and sustainable practices that play a vital role in preserving soil fertility, enhancing farm productivity, and ensuring long-term food security.
reference
López-Salazar, R., González-Cervantes, G., Vázquez-Alvarado, R. E., Olivares-Sáenz, E., Vidales-Contreras, J. A., Carranza de la Rosa, R., & Ortega-Escobar, M. (2014). Humic and fulvic acid extraction method and characterization by infrared spectrophotometry. Revista mexicana de ciencias agrícolas, 5(SPE8), 1397-1407.