Managing Productive Peatlands Without Burning: Field Trial Evidence of Oil Palm Biofertilizer Formula

Peatlands are often considered less productive for oil palm due to their acidic nature, low nutrient availability, and susceptibility to fire. However, with a microbiology-based approach, peatlands can become productive without the need for burning. Biosolution, through its Oil Palm Biofertilizer Formula, has conducted field trials in Sumatra and Kalimantan that demonstrate an increase in fresh fruit bunch (FFB) yield by 10–15%, while suppressing Ganoderma attacks and reducing dependence on chemical fertilizers by up to 30%. This article discusses the technical data and mechanism of action of the formula.

Why Are Peatlands Challenging for Oil Palm?

Peatlands have unique characteristics: low pH (3–4), high cation exchange capacity but low nutrient availability, and abundant organic matter that decomposes slowly. These conditions inhibit oil palm root growth and increase susceptibility to soil-borne pathogens such as Ganoderma boninense. Additionally, poor drainage and fire risk are classic problems. Farmers are often tempted to burn to clear land, even though this practice is illegal and damages the peat ecosystem. Sustainable solutions actually come from soil microorganisms that can naturally improve fertility and plant health.

Oil Palm Biofertilizer Formula: Composition and Mechanism of Action

Biosolution's Oil Palm Biofertilizer Formula contains three superior microbes that work synergistically:

Trichoderma harzianum: Biocontrol and PGPR

Trichoderma harzianum is an antagonistic fungus effective against Ganoderma boninense through mycoparasitism and nutrient competition. Additionally, T. harzianum acts as a Plant Growth Promoting Rhizobacteria (PGPR) by producing growth hormones such as auxins and gibberellins, and increasing phosphorus availability.

Azotobacter sp.: Nitrogen Fixation on Peat

Azotobacter sp. is a non-symbiotic nitrogen-fixing bacterium capable of fixing N₂ from the air and converting it into ammonia that can be absorbed by plants. On nitrogen-poor peatlands, the presence of Azotobacter is vital for reducing the need for urea fertilizer.

Bacillus subtilis: Phosphate Solubilizer and Biocontrol

Bacillus subtilis produces phosphatase enzymes and organic acids that solubilize bound phosphate (P) into forms available to plants. This bacterium also produces antimicrobial compounds that suppress root pathogens such as Fusarium and Phytophthora. The combination of these three creates a healthy rhizosphere ecosystem.

Field Trial Results in Sumatra and Kalimantan

Field trials were conducted on smallholder oil palm plantations on peatlands with plant ages of 3–7 years. Parameters measured included FFB production, Ganoderma attack intensity, and changes in soil chemical properties. The following is a summary of results after 12 months of application:

• Increase in FFB production: 10–15% compared to control (standard chemical fertilizer). Average increase of 1.2–1.8 kg/tree/harvest season.
• Reduction in Ganoderma attack: Disease intensity decreased by 40–60% in plots treated with the biofertilizer. This was confirmed by observation of leaf and stem symptoms.
• Reduction in chemical fertilizer: NPK fertilizer dosage could be reduced by up to 30% without decreasing production, due to the contribution of Azotobacter and Bacillus in providing N and P.
• Improvement in peat soil quality: Soil pH increased by 0.3–0.5 points, organic C content remained stable, and soil microbial activity increased significantly.

Proper Application Method on Peatlands

Application of the Oil Palm Biofertilizer Formula is done using the palm circle drench method. The recommended dosage is 20 ml per tree, dissolved in 5–10 liters of water, then drenched evenly into the root zone. Application frequency is every 3 months, best done in the morning or late afternoon to avoid direct UV light that can damage the microbes. On peatlands with poor drainage, ensure there is no standing water during application to prevent microbes from being washed away.

Advantages of Biofertilizer Formula Over Conventional Chemical Fertilizers

Chemical fertilizers indeed provide quick results, but in the long term cause peat soil degradation: pH decrease, loss of organic matter, and pathogen resistance. In contrast, the Oil Palm Biofertilizer Formula offers a sustainable solution:

• Improves peat soil structure: Exopolysaccharides from Bacillus and Trichoderma mycelium bind peat particles, increasing aggregation and porosity.
• Reduces greenhouse gas emissions: By suppressing excessive peat decomposition, CO₂ release can be minimized.
• Supports no-burn agriculture: Biologically fertile soil does not require burning for land clearing.

Farmer Testimonials and Supporting Data

Mr. Sutrisno, an oil palm farmer in Central Kalimantan, reported that his FFB production increased by 12% after switching to the biofertilizer formula. "Previously, during the rainy season, many trees fell due to root rot; now there are almost none," he said. Data from the local Plantation Office also showed a reduction in urea fertilizer use of up to 40% among assisted farmer groups. Similar research by IRRI and FAO confirms the effectiveness of microbes on peat soils.

Conclusion

Productive peatlands are not a myth. With Biosolution's Oil Palm Biofertilizer Formula, farmers in Sumatra and Kalimantan can increase FFB production by 10–15%, suppress Ganoderma, reduce chemical fertilizers by 30%, while preserving peatlands. This microbiology-based approach proves that sustainable and productive agriculture can go hand in hand. For further consultation on application in your field, contact the Biosolution team via WhatsApp or see the product Oil Palm Biofertilizer Formula on our website.

FAQ

1. Is the Biofertilizer Formula safe for the peat environment? Yes, all microbes used are natural strains that have been tested for safety. They are not pathogenic to humans, animals, or plants. In fact, these microbes help improve peat soil quality by increasing biological activity and reducing the need for chemical fertilizers that can pollute water.

2. How long does it take to see results after application? Initial changes are usually visible after 2–3 months of application, indicated by greener and wider leaf growth. Significant increases in FFB production are seen after 6–12 months, as microbes need time to establish populations in the rhizosphere. Regular application every 3 months is recommended for optimal results.

3. Can this formula be combined with chemical fertilizers? Certainly. The biofertilizer formula is designed to reduce the dosage of chemical fertilizers, not to replace them entirely. During the transition period, farmers can reduce NPK fertilizer by up to 30% without decreasing yield. This combination is actually more effective because the microbes help solubilize nutrients bound in the peat.

4. Are there any side effects if the dosage is excessive? Excessive dosage is not harmful, but it will not proportionally increase yield because microbes have an environmental carrying capacity. Follow the recommended dosage of 20 ml per tree. Excess dosage will only waste the product. If in doubt, conduct a trial on a few trees first.

5. Where can I buy the Oil Palm Biofertilizer Formula? The product is available at Biosolution partner agricultural stores in Sumatra and Kalimantan, or can be ordered directly through the official Biosolution website. For bulk purchases and technical consultation, contact our team via WhatsApp at the number listed on the website.