Productive Peatland: 3 Biofertilizer Formulas for Oil Palm Farmers in Sumatra & Kalimantan

Managing peatland to be productive without burning is a major challenge for oil palm farmers in Sumatra and Kalimantan. So far, chemical fertilizers have been considered a quick solution, but in reality they worsen the fragile condition of peat soil. A biological approach with biofertilizers offers a more sustainable alternative. This article explores three superior formulas from Biosolution specifically designed to overcome peatland constraints, from nitrogen fixation, phosphorus solubilization, to Ganoderma control. With scientific data and field experience, you will understand why biofertilizers are the key to productive peatland.

Why Chemical Fertilizers Fail on Peatland?

Peatland has unique characteristics: low pH, high cation exchange capacity, but very limited nutrient availability. Chemical fertilizers such as urea, SP-36, and KCl are often ineffective because most are leached before being absorbed by roots. Moreover, excessive chemical fertilizer application can increase salinity and trigger greenhouse gas emissions. Data from FAO shows that peatlands in Indonesia store about 35% of tropical forest carbon, so improper management actually damages the environment. This is why a biological approach with biofertilizers is a smart solution: microbes colonize the rhizosphere, provide nutrients gradually, and improve peat structure without negative side effects.

3 Biofertilizer Formulas for Oil Palm on Productive Peatland

Biosolution has developed Oil Palm Biofertilizer Formula containing three superior microbial strains. Each has a specific role in optimizing peatland.

Trichoderma harzianum: Biocontrol of Ganoderma and PGPR

Trichoderma harzianum is an antagonistic fungus effective against Ganoderma boninense, the cause of basal stem rot disease in oil palm. This microbe produces chitinase enzymes that degrade the pathogen's cell wall. Additionally, T. harzianum also acts as a Plant Growth Promoting Rhizobacteria (PGPR) by producing growth hormones such as auxins and gibberellins. On peatland, regular application of T. harzianum can suppress Ganoderma attacks by up to 60%, based on research from IRRI.

Azotobacter sp.: Nitrogen Fixer on Peat

Azotobacter sp. is a non-symbiotic nitrogen-fixing bacterium capable of converting atmospheric N₂ into ammonia usable by plants. On nitrogen-poor peatland, the presence of Azotobacter is crucial. This bacterium also produces exopolysaccharides that bind peat particles, improve soil aggregation, and enhance drainage. Using Azotobacter sp. in oil palm biofertilizer formulas can reduce synthetic nitrogen fertilizer requirements by up to 30%.

Bacillus subtilis: Phosphorus Solubilizer and Pathogen Biocontrol

Bacillus subtilis is a bacterium capable of solubilizing phosphorus bound in peat soil through organic acid production. Phosphorus is an essential macronutrient for oil palm fruit formation. Additionally, B. subtilis produces antimicrobial compounds that suppress soil-borne pathogens such as Fusarium and Phytophthora. The combination of these three microbes in one formula creates optimal synergy for productive peatland.

Proper Application Method for Maximum Results

Application of oil palm biofertilizer must be done correctly to keep microbes alive and active. Here is a guide from Biosolution:

• Method: Drench around the oil palm disc (area around the base of the trunk).
• Dosage: 20 ml per tree, mixed with clean water (1 liter water per tree).
• Frequency: Every 3 months, together with organic fertilization.
• Time: Morning or late afternoon to avoid direct UV light that can kill microbes.

Ensure the soil is moist before application. Avoid mixing biofertilizer with chemical fungicides or bactericides as they can kill microbes. For best results, combine with manure or compost.

Efficacy Data: 10-15% FFB Increase and 30% Reduction in Chemical Fertilizers

Field trials on peatland in Central Kalimantan showed that regular application of oil palm biofertilizer formula for one year resulted in:

• Increase in Fresh Fruit Bunch (FFB) production by 10-15% compared to control.
• Reduction in Ganoderma attacks from 15% to 5%.
• Savings on chemical fertilizers (urea, SP-36, KCl) of up to 30% because microbes provide nutrients naturally.

This data is supported by research from Gadjah Mada University which noted that Azotobacter sp. can fix 20-30 kg N/ha/year on peatland. Meanwhile, Bacillus subtilis increases available P by up to 40%.

Conclusion

Managing peatland to be productive without burning is not a dream. With a biological approach using Oil Palm Biofertilizer Formula from Biosolution, oil palm farmers in Sumatra and Kalimantan can increase production, reduce chemical fertilizer costs, and preserve the environment. Three formulas—Trichoderma harzianum, Azotobacter sp., and Bacillus subtilis—work synergistically to overcome the main constraints of peatland: low nitrogen, bound phosphorus, and Ganoderma attacks. Want to get started? Consult your land with the Biosolution team via WhatsApp. Productive peatland, healthy oil palm, sustainable environment.