Oil Palm Biofertilizer: Field Trial Results of the Sawit Formula on Peatland

Oil palm plantations in Indonesia face major challenges, especially on peatlands that are prone to degradation and pathogen attacks such as Ganoderma boninense. The use of oil palm biofertilizer is a strategic solution to increase productivity sustainably. Biosolution, through its farm division, has developed the Oil Palm Biofertilizer Formula which was field-tested on B2B oil palm plantations. The results showed a 10–15% increase in FFB, suppression of Ganoderma, and a reduction in chemical fertilizer use by up to 30%. This article thoroughly discusses the mechanism, test results, and practical applications.

Why Peatlands Need Biofertilizer?

Peatlands have unique characteristics: low pH, limited nutrient content, and slow microbial activity. These conditions make oil palm plants susceptible to abiotic and biotic stress. Oil palm biofertilizer is designed to overcome these problems by enriching functional microbes that can:

• Fix nitrogen from the air (by Azotobacter sp.)
• Solubilize phosphorus bound in peat (by Bacillus subtilis)
• Control pathogens such as Ganoderma (by Trichoderma harzianum)

Data from the Ministry of Agriculture shows that peatland oil palm applied with biofertilizer has a microbial population 2-3 times higher than the control, and significantly increased dehydrogenase enzyme activity.

Characteristics of Peatland for Oil Palm

Peat has an organic matter content >65%, high porosity, and low cation exchange capacity. This condition causes nutrients to be easily leached. Biofertilizer helps form more stable soil aggregates through the production of exopolysaccharides by Bacillus subtilis, thereby increasing nutrient retention.

Composition of Biosolution's Oil Palm Biofertilizer Formula

This formula consists of three superior microbial strains that work synergistically:

• Trichoderma harzianum: Acts as a biocontrol agent for Ganoderma as well as a Plant Growth Promoting Rhizobacteria (PGPR). This microbe produces chitinase enzymes that degrade the cell walls of pathogenic fungi.
• Azotobacter sp.: Non-symbiotic nitrogen-fixing bacteria capable of providing N up to 20-30 kg/ha/year on peatlands.
• Bacillus subtilis: Phosphate-solubilizing bacteria and producer of growth hormones (IAA, gibberellins) and antibiotics to suppress pathogens.

These three strains are formulated in a liquid concentrate with a minimum density of 10⁸ CFU/mL. This product is registered with the Ministry of Agriculture and is suitable for sustainable agricultural systems.

Field Trial Results on B2B Oil Palm Plantations

The field trial was conducted over two growing seasons (18 months) on a 50-hectare B2B oil palm plantation in Riau, with peat soil depth of 2-4 meters. The trial design used a randomized block design with 4 treatments: control (100% chemical fertilizer), biofertilizer formula + 70% chemical fertilizer, biofertilizer formula + 50% chemical fertilizer, and biofertilizer formula alone.

FFB Production Parameters

Results showed that the biofertilizer formula + 70% chemical fertilizer treatment increased FFB production by 12.3% compared to the control. Meanwhile, the biofertilizer formula alone treatment (without chemical fertilizer) recorded only a 5% decrease in production but with much lower input costs.

Suppression of Ganoderma Attack

The incidence of basal stem rot (BSR) disease in the control reached 18%, while in the biofertilizer formula treatment it was only 4%. Trichoderma harzianum was proven effective in colonizing the rhizosphere and inhibiting Ganoderma growth.

Improvement of Soil Chemical Properties

After routine application every 3 months, peat soil pH increased from 3.8 to 4.5, P availability increased by 40%, and total N increased by 25%. This shows that oil palm biofertilizer can gradually improve peat soil quality.

Proper Application Method for Optimal Results

Application of the Oil Palm Biofertilizer Formula is done using the palm circle drench method:

• Dosage: 20 ml per tree
• Frequency: Every 3 months (4 times a year)
• Time: Morning or evening to avoid direct UV light
• Water volume: Mix 20 ml of product into 5 liters of clean water, then drench evenly in the root zone.

For maximum results, combine with 5-in-1 Liquid Biofertilizer Formula as a micronutrient supplement. Ensure the soil is moist before application.

Advantages of Biofertilizer Compared to Conventional Chemical Fertilizer

By reducing chemical fertilizer by 30%, farmers can save production costs up to IDR 1.5 million per hectare per year, based on calculations from field trial results.

Testimonials and Supporting Data

Mr. Sugeng, manager of a B2B oil palm plantation in Riau, stated: "After using this biofertilizer formula, FFB production increased by 12% and chemical fertilizer costs dropped drastically. Plants are also healthier, Ganoderma attacks have decreased." Official data from FAO also supports the use of biofertilizer for sustainable agriculture on marginal lands.

Conclusion

Biosolution's oil palm biofertilizer has proven effective in increasing oil palm productivity on peatlands while improving soil quality and suppressing disease. Field trial results show a 10–15% increase in FFB, a decrease in Ganoderma attacks, and a 30% saving in chemical fertilizer. For B2B plantations seeking sustainable solutions, this formula is the right choice. Consult your needs with our team via WhatsApp to get specific dosage recommendations according to land conditions.