InfoSAWIT, JAKARTA – The importance of boron micronutrient in oil palm cultivation is still often overlooked by smallholders, despite its crucial role in supporting pollination and fresh fruit bunch (FFB) productivity.
Researcher from the Indonesian Oil Palm Research Institute (PPKS) Medan, Djan Muhayat, stated that the optimal boron content in oil palm leaves ranges between 8–15 ppm. In fertilizer terms, oil palm requires approximately 46 grams of pure boron or equivalent to 100–125 grams of boron fertilizer per plant annually.
“If we look at field conditions, many farmers are still lacking boron. For instance, NPK fertilization often does not supply sufficient boron for plant needs,” Djan explained, as quoted by InfoSAWIT from PPKS Reels, Friday (April 3, 2026).
He noted that applying compound fertilizer such as NPK containing 0.5% boron at a dosage of 6 kg per year only provides about 30 grams of boron (in B2O3 form), which is still below the ideal requirement.
“This means there is a deficit of around 16 grams of boron. That shortage is equivalent to an additional 30–50 grams of boron fertilizer per plant,” he added.
The Role of Boron in Pollination
Djan emphasized that boron plays a direct role in improving pollination quality by enhancing the condition of female flowers, making them more attractive to pollinating insects.
“When boron is sufficient, female flowers become more ‘fragrant’ and attractive to pollinators. The more insects that visit, the higher the chances of fruit formation,” he explained.
He added that stagnant or suboptimal production is not always due to macronutrient deficiencies such as nitrogen or phosphorus, but can also result from poor pollination caused by boron deficiency.
Fertilization Strategy on Peatland
Regarding fertilizer selection, Djan highlighted that peatland soils generally have limited phosphorus availability. Therefore, fertilizer formulations must be adjusted accordingly.
“In peatland, phosphate availability is often a constraint. Fertilizers like 13-6-7 remain relevant as long as other nutrient needs are met,” he said.
He compared phosphorus to Adenosine Triphosphate (ATP), the energy source for plants.
“If phosphorus is insufficient, it’s like having a weak battery—plant metabolism will be disrupted,” he added.
Djan also stressed the importance of educating farmers on proper dosage and application methods, recommending the use of simple weighing tools.
“Farmers often use spoon measurements, but 30 grams is not always accurate. It’s better to use a simple scale to ensure precise dosage,” he concluded. (T2)
