SoilBoost EA for durian and tropical fruit trees
SoilBoost EA for durian and tropical fruit trees
SoilBoost EA at a glance
- Analysis: 96.55 percent humic acid, 0.45 percent sulphur, pH 3.84
- Source material: Leonardite ore
- Category: soil conditioner — not a fertiliser, not a substitute for a fertiliser programme, and not a fungicide or pesticide
- Manufactured: exclusively for Chemiseed Sdn. Bhd. and Kudzu Seeds Trading
- Export: export documentation matched to the destination country’s requirements, confirmed at quotation
What is SoilBoost EA?
SoilBoost EA is a concentrated humic acid soil conditioner (96.55 percent humic acid, 0.45 percent sulphur, pH 3.84), manufactured exclusively for Chemiseed Sdn. Bhd. and Kudzu Seeds Trading and derived from Leonardite ore. Its humic and fulvic molecules chelate micronutrients such as iron, zinc and copper, contribute to the soil’s cation exchange capacity and support root-zone conditions, which can help nitrogen, phosphorus, potassium and micronutrients stay available to the plant. It supplies no meaningful quantity of N, P or K itself, so it is used alongside a fertiliser programme rather than in place of one. SoilBoost EA is exported worldwide. It is a Leonardite-derived mineral product rather than seed or plant material, so a phytosanitary certificate is not necessarily the document a destination country requires for it — the applicable export documentation is confirmed at quotation. Where a destination does require plant health documentation, the certificate is issued by the Philippine Bureau of Plant Industry, the national plant protection organisation, under the IPPC framework. Import permits and admissibility remain the buyer’s responsibility.
SoilBoost EA application rates
Rates depend on how SoilBoost EA is applied. The figures below are the standard method-based rates used across all SoilBoost EA guidance and are starting points, not prescriptions. Use the calculator further down to work out the exact quantity for your crop, area, and method.
| Method | Rate | Best for |
|---|---|---|
| Per mature tree (soil drench at drip line) | 100-200 g per tree, 2-3x per year | Durian, mango, coconut, oil palm, and other established trees |
| Per planting hole (at planting) | 20-50 g per hole | New tree and seedling establishment |
| Fertigation / soil drench | 10-15 kg/ha | Banana, papaya, vegetables, and field crops via irrigation |
| Broadcast / pre-planting (dry) | 50-100 kg/ha | Whole-block incorporation before planting |
| Foliar spray | 500-1,000 ppm solution | Quick top-up between soil applications |
Why durian growers use SoilBoost EA
Durian trees are particularly responsive to soil management. The root system of durian is relatively shallow and benefits from good root-zone conditions and steady nutrient availability. SoilBoost EA is used to improve soil structure and to support biological activity around the root zone. Some growers in tropical regions report more consistent fruit set and fruit quality where SoilBoost EA is included in a soil management programme alongside conventional fertilisers; these are grower observations rather than controlled trial results, and no yield increase is implied or guaranteed.
The reasons growers give for using SoilBoost EA on durian include better soil structure and water retention in the root zone, support for soil biological activity, and easier nutrient management over successive seasons. It is compatible with both conventional and low-input management, although it is not itself an organically certified input. Any change to your fertiliser rates should be verified against your own soil and leaf analysis rather than assuming a fixed fertiliser credit.
How to apply SoilBoost EA
For tree crops, apply about 100 to 200 g per mature tree. Dissolve in water (ratio of 1:100 to 1:200) and apply as a soil drench around the drip line of the tree. The drip line is the outer edge of the canopy where rainwater naturally falls. This is where the active feeder roots are concentrated.
For field crops like melon and vegetables, apply at 10 to 15 kg/ha via irrigation (drip or sprinkler) or as a foliar spray during early morning or late afternoon.
Timing: apply during the early wet season when soil moisture is adequate and soil temperatures are warm (above 20 degrees C). Avoid applying during heavy rain events that could wash the product away before soil absorption.
Plan your application rate
Work out the exact quantity of SoilBoost EA for your crop, area, and method (broadcast, fertigation, foliar, or per tree) with our free SoilBoost EA Application Rate Calculator, or browse all our plantation tools.
Global availability
SoilBoost EA is manufactured exclusively for Chemiseed Sdn. Bhd. (Malaysia) and Kudzu Seeds Trading and exported worldwide to all tropical regions. Available through Kudzu Seeds Trading, the sister company of Chemiseed Sdn. Bhd. Export documentation is matched to each destination country’s requirements and confirmed at quotation; import permits and admissibility remain the buyer’s responsibility.
Available pack sizes
| Pack size | Suitable for |
|---|---|
| 1 kg | Small farms, trial applications |
| 5 kg | Medium farms (2-5 hectares) |
| 25 kg | Plantations and large-scale operations |