Oil Palm EFB Compost Accelerator Humic Acid Powder 70% Leonardite Extract Indonesia Estate Grade

Empty fruit bunch is not a waste problem for most Indonesian estates, it is a nitrogen problem. Fresh EFB comes off the mill at a C/N ratio around 45 to 60 and with a moisture load above 60%, so a windrow turned the traditional way takes five to seven months to reach something you can spread, and the leachate that runs out of it carries away the potash you were hoping to return. This 70% humic acid powder is used as a windrow starter: 2-3 kg per ton of EFB, dusted between layers as the bunches are stacked, and the same windrow is usually ready in ten to twelve weeks.

The mechanism is not mysterious. The humic and fulvic fractions act as an electron shuttle and a carbon primer for the thermophilic bacterial population, so the internal temperature of the windrow comes up two to three days earlier and holds longer. Because the powder is 98% water soluble, the estate can either dust it dry or make a 2% slurry and spray it with the same boom they use for mill effluent. We have run side-by-side windrows on estates near Medan and Pekanbaru with this product and the humic fraction in the finished compost was consistently 1.4 to 1.8 points higher than the untreated row.

We also sell this grade as a straight soil conditioner for the palm circle. Applied at 50 to 100 g per palm in the weeded circle before the rain, it improves aggregate stability in the sandy ultisols that dominate Riau and Central Kalimantan, where fertiliser recovery is poor because water and nutrients move straight past the root mat. Two applications per year, before the wet season and mid-season, is the pattern most estates settle on.

• Cuts windrow cycle by six to ten weeks: Thermophilic phase starts earlier and lasts longer, so the estate gains roughly one extra compost turn cycle per year on the same pad
• 98% water soluble: Can be dusted dry or mixed as a 2% slurry and sprayed, fitting existing mill effluent or FFB spraying equipment
• 70% humic acid from oxidised leonardite: Ningxia open-pit weathered lignite, wet-sieved and drum dried, no ash blending and no filler
• Improves sandy ultisol structure: Raises aggregate stability and exchangeable base holding where fertiliser recovery is normally under 40%
• Nitrogen retention in the windrow: Binds leached ammonium in the pile, so less of the applied nitrogen leaves as runoff into the mill drain
• Established RSPO-friendly input: Mineral-derived, heavy metal screened against EU and Indonesian limits; batch heavy metal report available with COA

Primary use is EFB and POME sludge co-composting on the compost pad: 2-3 kg per ton of EFB, dusted in three layers as the windrow is built, moisture held at 55-60%, turned every ten days. Secondary use is palm circle application at 50-100 g per palm, either alone or blended with the estate fertiliser programme before the wet season. It can also be added to nursery potting mixes at 3-5 kg per cubic metre to lift cation exchange capacity in the pre-nursery.

Do not mix the powder into urea or ammonium sulphate blends for storage; the moisture pull is high and the blend will cake within two weeks. Apply separately, or blend at the point of spreading only.

Supplied in 25kg PP woven bags with PE liner, 40 bags per pallet, 1 ton jumbo bags with liner for estates that batch-mix on site. Neutral or private label printing is available for distributors, including your analysis panel and a batch QR code. Shelf life is 24 months in dry storage on pallets, away from direct sun and floor dampness.

Every lot is tested in-house for humic acid, organic matter, moisture, pH and solubility, and once per quarter we send a composite to a third-party laboratory for heavy metals (Cd, Pb, As, Hg, Cr) so that estates with RSPO or EU buyer audits have the paperwork ready. Retained samples are stored 24 months and can be sealed in the presence of your surveyor before shipment.