SoilBoost EA application rate calculator
Work out how much SoilBoost EA to apply by crop, area, and method, and get the exact quantity. SoilBoost EA is a Leonardite-derived humic soil conditioner produced exclusively for Chemiseed Sdn. Bhd. and Kudzu Seeds Trading. Built for oil palm, rubber, durian, and other tropical crops.
SoilBoost EA application rates at a glance
| Application method | Default rate | Crop-specific notes |
|---|---|---|
| Broadcast or pre-planting | 50 to 100 kg/ha | Oil palm, rubber, coconut, and sugarcane 50 to 100 kg/ha; paddy and banana 50 to 75; durian and cacao 30 to 50; vegetables and small farms 5 to 10 |
| Fertigation or soil drench | 10 to 15 kg/ha | Rate applies to the area covered by the fertigation run |
| Foliar spray | 500 to 1,000 ppm | 0.5 to 1.0 g of product per litre of spray solution |
| Per planting hole | 20 to 50 g per hole | Oil palm 200 to 500 g; durian 100 to 200 g; cacao about 100 g; banana about 50 g |
| Mature tree annual top-up | 100 to 200 g per tree | Annual maintenance dose per established tree |
| Small-scale or pots | About 50 g per square metre | Garden and nursery use |
Shift toward the higher end of a range on soils with low organic matter. SoilBoost EA is a soil conditioner used alongside a normal fertiliser programme, not a fertiliser substitute, and it is not a fungicide or pesticide. Its published specification is 96.55 percent humic acid, pH 3.84, and 0.45 percent sulphur.
Rates are the planning defaults built into this calculator. Confirm against your own soil test, crop stage, and local trial data before scaling across an estate. See the SoilBoost EA field evidence for the trial data. Values reviewed September 2026.
How the SoilBoost EA rate calculator works
SoilBoost EA is a Leonardite-derived humic soil conditioner analysing at 96.55 percent humic acid, pH 3.84, and 0.45 percent sulphur. The calculator turns a target application rate into a total product quantity for your block, based on the crop you select, the treated area, and the application method. It returns the quantity to order and a per-area breakdown so you can plan a programme.
How to read the result
The output is a planning quantity. Confirm the rate against your own soil condition, the crop stage, and any local trial data before scaling across a large estate. SoilBoost EA is a soil conditioner, not a fertiliser and not a substitute for one, and it is not a fungicide or pesticide. It supports soil structure and nutrient availability as part of an integrated fertility programme.
Frequently asked questions
What is SoilBoost EA?
A Leonardite-derived humic soil conditioner with 96.55 percent humic acid, pH 3.84, and 0.45 percent sulphur, produced exclusively for Chemiseed and its sister company Kudzu Seeds Trading. It is used to support soil structure, cation exchange, and nutrient uptake, alongside a balanced fertiliser programme.
How do I order SoilBoost EA?
Tell us your crop, area, and method and we will confirm quantity and pricing. You can contact us for a quote.