How BIOASH (Beyond Dolomite) Improves Soil Fertility Beyond pH Correction

In tropical agriculture, especially in Southeast Asia, acid soils are a persistent challenge that limit crop productivity. Farmers traditionally rely on lime or dolomite to neutralize soil acidity and raise pH levels. While these materials are effective in their primary purpose, they offer limited nutritional value beyond calcium and magnesium. Enter BIOASH (Beyond Dolomite) — a multi-functional soil amendment made from agricultural biomass, offering not only pH correction but also an array of nutrients and soil-improving properties. In this article, we explore how Bioash goes far beyond simple pH adjustment to significantly enhance soil fertility.

What is BIOASH (Beyond Dolomite)?

BIOASH (Alternative to Dolomite) is the mineral-rich residue obtained from the controlled combustion of agricultural waste. The product used in many Malaysian and Indonesian farms is typically made from Empty Fruit Bunches (EFB) and woodchips, both by-products of the palm oil industry. The resulting ash is extremely low in moisture (less than 2%) and contains a blend of macronutrients and micronutrients beneficial to soil and crops.

Its composition includes:

• Potassium Oxide (K2O): 15–19%
• Calcium Oxide (CaO): 5%
• Magnesium Oxide (MgO): 3%
• pH: 11–12
• Trace elements like silica, iron, manganese, and zinc

Because of its high alkalinity and rich nutrient profile, BIOASH (Beyond Dolomite) acts as a dual-purpose input: a liming material and a fertilizer.

1. A Powerful Source of Potassium

Unlike dolomite or lime, which mainly supply calcium and magnesium, BIOASH (Beyond Dolomite) is rich in potassium — a key macronutrient essential for plant growth. Potassium enhances:

• Water regulation within plant tissues
• Fruit development and quality
• Disease resistance
• Root strength and nutrient uptake

This makes BIOASH (Beyond Dolomite) particularly useful in crops with high potassium demands such as oil palm, banana, pineapple, cassava, and sugarcane. In potassium-deficient soils, BIOASH helps to boost yields without relying solely on expensive imported MOP (Muriate of Potash).

2. Improves Cation Exchange Capacity (CEC)

Soils with low organic matter or high acidity often have poor Cation Exchange Capacity (CEC), meaning they struggle to retain nutrients. The addition of BIOASH (Beyond Dolomite) enhances the CEC by increasing the amount of basic cations (Ca2+, Mg2+, K+), allowing soils to hold onto essential nutrients more effectively.

Moreover, the silica content in BIOASH (Beyond Dolomite) may contribute to improved soil structure, increasing porosity and aeration, and reducing compaction issues.

3. Enhanced Microbial Activity

BIOASH (Beyond Dolomite) improves microbial balance by neutralizing acidic environments that can suppress beneficial organisms. Once the soil pH is raised to optimal levels (typically pH 6–7), a healthier microbial ecosystem develops. This enhances:

• Decomposition of organic matter
• Nitrogen fixation
• Phosphorus solubilization

In some applications, BIOASH (Beyond Dolomite) is mixed with compost or manure to create a bio-active soil amendment, supporting even greater microbial diversity.

4. Immediate and Long-Term Nutrient Release

Unlike synthetic fertilizers that can leach quickly, BIOASH (Beyond Dolomite) offers both immediate and residual benefits. The potassium, calcium, and magnesium in BIOASH (Beyond Dolomite) are available in oxide forms, which dissolve gradually in the soil. This allows crops to absorb nutrients over a longer period, reducing the need for repeated applications.

The high pH also slows the breakdown of organic matter, allowing for a steadier release of nutrients over time.

5. Reduces Soil Toxicity

Highly acidic soils often contain toxic levels of aluminum and manganese, which hinder root development and nutrient absorption. By raising the soil pH, BIOASH (Beyond Dolomite) binds with these toxic elements, making them insoluble and thus less harmful to plants. This is especially important in degraded or heavily weathered tropical soils, where aluminum toxicity is a major limiting factor in crop productivity.

6. Helps Reduce Dependence on Chemical Inputs

By supplying potassium and improving nutrient retention, BIOASH (Beyond Dolomite) can partially replace synthetic fertilizers like NPK, reducing costs and chemical runoff. For organic or semi-organic farms, it serves as a compliant input that aligns with sustainable farming standards.

Some farmers report a 20–30% reduction in synthetic fertilizer use after regular BIOASH (Beyond Dolomite) application, depending on crop type and soil condition.

7. Environmental and Economic Benefits

BIOASH (Beyond Dolomite) production utilizes agricultural waste that would otherwise be burned openly or left to rot. This contributes to:

• Reduced methane emissions
• Lower risk of wildfires
• Minimal landfill use

From an economic standpoint, BIOASH (Beyond Dolomite) is often cheaper than imported lime or potassium fertilizers, especially when sourced locally. It adds value to the palm oil supply chain by transforming a waste product into a valuable agricultural input.

Best Practices for Using BIOASH (Beyond Dolomite)

To maximize its benefits, BIOASH (Beyond Dolomite) should be applied based on soil test recommendations. Common application methods include:

• Broadcasting: Uniformly over large areas before planting
• Banding: Along crop rows
• Spot Application: Around tree bases or perennial plants

Typical usage ranges from 500 to 2,000 kg per hectare, depending on crop type and initial soil pH.

Caution should be taken not to over-apply, as excessive alkalinity or salt buildup can harm sensitive crops. Always monitor soil pH and adjust usage accordingly.

Conclusion

BIOASH (Beyond Dolomite) is more than just a liming agent. With its balanced nutrient profile, low moisture content, and long-lasting soil-enhancing properties, it is a smart alternative to traditional amendments like dolomite and lime. From supplying potassium to improving microbial life and reducing aluminum toxicity, BIOASH (Beyond Dolomite) is a powerful ally in building long-term soil fertility. For farmers seeking both productivity and sustainability, BIOASH (Beyond Dolomite) is not just a choice—it’s an investment in the future of their land.

LEE BIOASH – Alternative to Dolomite