WHAT IS Fertisco ?

Fertisco: The Multifunctional Fertilizer Enhancing Plant Nutrition and Defense

Fertisco is a versatile fertilizer enriched with macronutrients and silicon, designed to boost plant nutrition and defense mechanisms. It enhances crop resistance and tolerance to pests and diseases, ensuring a more productive and high-quality yield.

The silica layer formed beneath the plant cuticle serves as a physical barrier, strengthening plant structure and improving photosynthetic efficiency.

Watch the explanatory video showcasing the benefits of AgroSilício for your production.

What are the primary advantages of Fertisco that will revolutionize your farming practices?

Discover a New Era in Agriculture with Fertisco!

The key benefits will transform your farming practices. Fertisco strengthens plant cellular structure, increasing resistance to pests and diseases while enhancing nutrient absorption.

It also boosts plant resilience against environmental stressors like extreme temperatures and water scarcity, leading to more robust and productive crops. Seize the chance to elevate your agricultural performance with Fertisco – the secret to healthier, more sustainable harvests.

Maximizing Agricultural Productivity with Fertisco: A Sustainable Investment

By using Fertisco, you invest in strengthening plants, making them more resilient and healthier. This leads to greater resistance against pests, diseases, and adverse weather conditions, allowing your crops to achieve their full production potential.

Moreover, Fertisco enhances nutrient absorption efficiency, ensuring that your plants access essential elements for robust growth. In summary, Fertisco is the key to a more productive, sustainable, and profitable crop.

Enhancing Mineral Solubility with Fertisco for Greater Productivity

Fertisco boosts the solubility of essential minerals, such as phosphorus, in the soil. Silicon in Fertisco reduces phosphorus fixation, making it more accessible to plants. With improved nutrient solubility, crops efficiently absorb the minerals they need for healthy growth, leading to a more productive yield with less reliance on additional fertilizers.

Integrating Fertisco into your farming practices is an effective strategy to optimize nutrient solubility, thereby enhancing plant health and agricultural productivity.

Natural Plant Protection Against Pests and Diseases

Fertisco enhances plants’ resistance to various stresses, including pests, diseases, and adverse environmental conditions. Silicon strengthens the cellular structure of plants, forming a natural barrier against insect attacks and pathogens, while also improving their ability to withstand stressors like drought and high temperatures.

This increased resilience enables crops to grow healthier and more consistently, leading to stronger and more productive harvests.

An Eco-Friendly Solution for Agriculture

Our dedication to sustainability is deeply embedded in our business ethos and will guide our trajectory ahead. With Fertisco, our customers contribute to avoiding the depletion of new natural resources for agricultural nutrient extraction.

Unlike agricultural limestone, Fertisco’s interaction with the soil doesn’t emit carbon dioxide (CO2), a greenhouse gas. Agricultural limestone, in contrast, releases 440 kg of CO2 for every 1000 kg of product applied.

Introducing the Sustainable Fertisco Fertilizers and Soil Conditioners Line


Soil Conditioner in the form of Calcium and Magnesium Silicate.

AgroSilício Plus

Plus Simple Mineral Fertilizer containing the micronutrient Silicon and the macronutrients Calcium and Magnesium.

AgroSilício S

Multinutrient Fertilizer containing Calcium, Magnesium, Silicon, and Sulfur in the same particle.

AgroSilício Mg

Multinutrient Fertilizer containing Calcium, Magnesium, Silicon, and Sulfur in the same particle.


By utilizing Fertisco, our clients circumvent the need to exploit new natural deposits for agricultural nutrient sourcing. Moreover, Fertisco’s soil interaction does not emit carbon dioxide (CO2), the primary greenhouse gas. Comparative analysis indicates that the utilization of Fertisco Corrective and Plus constitutes only about 5% of the total emissions associated with limestone use.

Fertisco Corrective and Plus constitutes only about 5% of the total emissions associated with limestone use.

Watch the explanatory video on the circular economy generated through the production of AgroSilício.


As part of our dedication to ensuring convenient access to Fertisco, we’ve established an extensive network of representatives across various regions, poised to assist you. Explore the map below to locate the nearest pickup points.

We understand that proximity may not always be feasible. Rest assured, if we haven’t yet stationed a representative in your city or region, our team of experts is prepared to help. Reach out to us, and we’ll gladly organize delivery or explore alternatives to ensure Fertisco is accessible to you, no matter your location.

We’re steadfast in facilitating your transition to more productive and sustainable agriculture.


The Importance of Silicon for Agriculture

Silicon (Si) is the second most abundant element in the Earth’s crust, second only to oxygen. However, in tropical and subtropical soils, silicon is often not readily available for plant uptake.

The use of soluble silicon sources in agriculture has been gaining traction due to its positive outcomes and status as a clean technology, aligning with the modern vision of sustainable agriculture and integrated management practices.

Considered a beneficial element, silicon aids in plant development and enhances the assimilation of essential nutrients. It is crucial for the normal growth and development of plants.

What is Solubility?

Fertisco (calcium silicate) is significantly more soluble than limestone (calcium carbonate). Fertisco has a solubility of 0.095 g/l, which is 6.78 times higher than limestone’s solubility of 0.014 g/l. Due to its higher solubility, Fertisco reacts more quickly, providing faster corrective action.

Solubility varies among different silicon sources: blast furnace products have high silicon content but low solubility, while steel mill products have lower silicon content but higher solubility. Fertisco, derived from stainless steel production, contains silicon with high solubility.

Thanks to its high solubility, Fertisco has been shown to be efficient in the soil-plant relationship, proving effective as a corrective source.

What is PRNT?

PRNT (Relative Power of Total Neutralization) is an indicator of reactivity that measures how much of an amendment reacts within three months when incorporated into the soil with adequate water availability. For instance, if the PRNT is 80%, it means that 80% of the limestone will react in the soil within three months, while the remaining 20% will react later.

A higher PRNT indicates a greater short-term effect and a lower residual effect. PRNT is fundamentally determined by reactivity (RE) and neutralization power (PN). RE refers to the relative efficiency of particles based on their size, while PN indicates the amendment’s ability to neutralize soil acidity.

Fertisco Plus is registered as a simple mineral fertilizer, providing silicon, calcium, and magnesium, with excellent physical and chemical properties for soil, including acidity correction. It has an estimated PRNT of 85%. During the steel production process, silicate materials with a porous structure and larger specific surface area are formed, resulting in greater particle dissolution and a faster reaction rate.

Therefore, Fertisco has an advantage over other amendments like limestone. However, it’s important to note that current regulations for amendments do not consider specific surface area.

Do All Silicon Sources Correct Soil?

Not all silicon sources correct soil. In the agricultural market, products sold as sources of silicon must contain a “neutralizing constituent” such as oxides, hydroxides, carbonates, and calcium and/or magnesium silicates to be effective.

Fertisco Plus fits this criterion, containing calcium and magnesium silicate in its composition, which gives it a high corrective power.

Differences and Advantages of Using Fertisco as a Soil Corrector Compared to Limestone

Environmental Impact: During the soil reaction process, limestone releases carbon dioxide (CO2), a greenhouse gas contributing to climate change. Fertisco, however, does not emit CO2, making it a more environmentally sustainable option.

Specific Surface Area: Fertisco has a porous particle structure, resulting in a larger specific surface area compared to limestone. This larger contact area enhances its reactivity and solubility

in the soil, allowing it to percolate through the soil profile more effectively.

Corrective Power: Due to its high solubility and reactivity, Fertisco provides a superior corrective effect, improving soil conditions more efficiently than limestone.

Additional Nutrients: Fertisco contains silicon in its composition, which not only aids in soil correction but also enhances plant resistance and improves plant structure, offering a more comprehensive benefit for agricultural productivity.

Does Fertisco Increase Phosphorus Availability in the Soil?

Research indicates that applying silicates like Fertisco boosts the availability of silicon in the soil solution as monosilicic acid (H4SiO4). This is the only inorganic ion with a high affinity for iron and aluminum oxides, competing for adsorption sites and potentially releasing retained phosphorus into the soil solution. Therefore, using Fertisco before or alongside phosphate fertilization can block fixation sites, significantly improving the efficiency of phosphate fertilization.

Consequently, the use of Fertisco can enhance the effectiveness of phosphate fertilization over time, reducing the need for phosphorus applications and lowering production costs, given phosphorus’s status as the most valuable nutrient in the market.

How Does Plant Silicon Absorption Occur?

Plant roots absorb soluble silicon in the form of monosilicic acid (H4SiO4). This silicon is transported via mass flow through the xylem and is primarily deposited in the cell walls of leaves, though it can also be found in stems and roots.

Once deposited, silicon precipitates, becoming immobile and no longer redistributing within the plant. In grasses, silicon typically accumulates in aboveground tissues like stems and leaves, with smaller amounts present in grains.

How Does Fertisco Enhance Water Use by Plants?

When absorbed by plants, silicon (Si) forms a silica gel layer on the walls of epidermal cells, which reduces water loss. It helps regulate the plant’s water potential, increasing photosynthesis and leaf water content. Additionally, silicon activates antioxidant defenses and prevents vessel collapse during high transpiration rates.

In summary, silicon naturally boosts plant resistance, minimizes water loss, and enhances tolerance to water deficiency.

How Does Silicon Act as a Resistance Inducer?

Silicon is recognized as an inducer of biotic resistance, creating a chemical barrier that enhances plant resistance. Studies emphasize silicon’s role in activating and/or enhancing genes responsible for producing defense-related enzymes.

Silicon interacts with the jasmonic acid signaling pathway, aiding the production of defensive enzymes like catalase, peroxidase, superoxide dismutase, polyphenol oxidase, and phenylalanine ammonia-lyase. These enzymes are crucial for regulating the production and accumulation of secondary metabolic compounds such as phenolics, phytoalexins, and momilactones.

How Does Resistance to Pests and Diseases Occur?

Resistance can occur mechanically through the rigidity of cell walls enhanced by silicon. This prevents fungi from penetrating with their appressoria, and insects are unable to feed properly, often leading to death from lack of food or cannibalism due to system disruption.

Studies indicate that caterpillars’ mouthparts can break when feeding on silicon-treated leaves. This mechanical resistance often reduces the need for insecticides and fungicides and increases the presence of natural enemies due to decreased pest and disease feeding. Consequently, this leads to lower production costs and increased crop productivity when using Fertisco.