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Oil palm estates across Sumatra and Kalimantan work soils that lose organic carbon quickly under heavy rainfall and continuous harvesting. Slow Release Humic Acid Granule Soil Conditioner is a 2 to 4 mm granule made from weathered leonardite, designed to release humic substances gradually through the root zone instead of washing away after the first monsoon.
The material comes from a specialist humic acid manufacturer with more than fifteen years of continuous production experience and an in-house soil science team. Every formulation is reviewed with plantation agronomists and trialled on oil palm, rice and cocoa before it is offered to the market, so buyers receive a product supported by documented field experience rather than marketing claims.
Key Features
Slow Release Granule: The compact granule breaks down over several weeks, feeding the soil steadily rather than releasing its full load at once.
High Humic Acid Content: A 65% minimum humic acid content rebuilds organic carbon and cation exchange capacity in depleted plantation soils.
Uniform And Dust Free: Screened granules are uniform and low in dust, so they spread evenly and resist wind loss during mechanical application.
Improves Soil Structure: Humic substances bind soil particles, easing compaction and improving aeration, drainage and root penetration.
Reduces Nutrient Leaching: Because the granule releases slowly, nitrogen and potassium stay available in the root zone longer during the rainy season.
Documented Quality: Produced under ISO 9001:2015 management with SGS tested batches and a certificate of analysis issued for every lot.
Technical Specifications
Parameter
Specification
Appearance
Black or dark brown granule
Humic Acid
65% min
Organic Matter
75% min
Granule Size
2 to 4 mm
Moisture
15% max
pH Value
6 to 8
Release Profile
Slow release, water insoluble
Particle Strength
Above 90%
Applications
For oil palm, band 150 to 250 g per palm along the frond stack twice a year, or broadcast 400 to 600 kg per hectare for rice and maize. Incorporate lightly into the topsoil and irrigate after application to activate the granule.
The granule blends readily with compound NPK, organic manure and biofertiliser, so plantation managers can fold it into an existing fertiliser programme without adding extra passes or equipment.
Packaging, Quality Assurance & Support
Supplied in 25 kg PP woven bags with PE liner and 1,000 kg jumbo bags. Private label and bilingual printing are available, and every bag carries a traceable batch number.
Quality is documented rather than claimed. Each shipment includes a certificate of analysis, a material safety data sheet and an application guide, and our technical team provides agronomic support for distributors and estates.
A 20-foot container loads about 25 metric tons of 25 kg bags, which supports a competitive landed cost for Indonesian importers and distributors.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Employee Number:
100~200
Ecer Certification：
Verified Supplier
About Huayuan
Shandong Huayuan Humic Acid Ecological Agricultural Science and Technology Co., Ltd. is headquartered in Jinan, the capital of Shandong Province,our company also with branch companies as "Ningxia humic biotechnology Co.,Ltd" and "Shanxi Zhongsheng Humic acid Co.,L...
About Huayuan
Shandong Huayuan Humic Acid Ecological Agricultural Science and Technology Co., Ltd. is headquartered in Jinan, the capital of Shandong Province,our company also with branch companies as "Ningxia humic biotechnology Co.,Ltd" and "Shanxi Zhongsheng Humic acid Co.,L...
