BWB SOIL
The dedicated agricultural model: K, Na, enhanced Ca, printer, internal standard.
- SciLab
- BWB flame photometers
- Soil & fertilisers
Agriculture · fertilisers · soil labs
Flame photometer for soil, fertiliser and plant analysis
Potassium is the nutrient every agricultural laboratory measures. The BWB SOIL reads potassium, sodium and calcium simultaneously in soil extracts, fertilisers and plant digests — in seconds, with a propane flame, at a fraction of the cost of ICP.
K19
Na11
Ca20
Li3
Typical samples
Typical samples
Soil extracts
Exchangeable K, Na and Ca after ammonium-acetate extraction; soil sodicity and ESP.
Fertilisers and potash
K₂O content in potassium chloride, NPK blends and liquid fertilisers (after dilution).
Plant tissue
K, Ca and Na in dry-ashed or acid-digested leaves for nutrient diagnostics.
Irrigation and recycled water
Na and Ca for SAR and salinity control, including treated effluent.
Hydroponic and greenhouse solutions
Routine K monitoring of nutrient solutions.
Compost and growing media
Soluble K and Na in substrate extracts.
Why BWB
Built for the agricultural laboratory
- K, Na and Ca at once. One aspiration, three results — no filter changes between elements.
- Accurate calcium. Enhanced Ca detection with automatic correction for high-sodium interference.
- Internal standard. Lithium or caesium internal reference compensates for matrix and flame drift.
- Printer as standard for sample traceability at the bench or in the field.
- Portable. Built-in compressor and regulator — runs in a field lab or the back of a van on bottled propane.
- Low cost per sample when the season brings hundreds of soil samples a day — add the AFHS autosampler for unattended runs.
Methods
| Exchangeable K, Na, Ca in soil | 1 M ammonium-acetate extraction, flame emission |
| Potassium in fertilisers | Flame-photometric K₂O determination after dissolution and dilution |
| Na and K in water | ISO 9964-3 · Standard Methods 3500-Na B / 3500-K B |
Recommended models
Which BWB to choose
BWB Flash FL-2 / FL-K
Best-value touchscreen option when you only need K (or K + Na).
BWB XP Plus + AFHS
High-throughput labs: autosampler and auto-diluter, up to 89 samples unattended.
FAQ
Common questions
Can a flame photometer replace ICP for soil potassium?
For K, Na, Ca and Li, yes. Flame photometry is the classic technique for exchangeable potassium and gives comparable results at a much lower purchase and running cost. Many labs keep ICP for micronutrients and move routine K/Na/Ca to the flame photometer.
Does it need acetylene or argon?
No. BWB instruments use propane, butane or LPG, with the air compressor and gas regulator built in.
How fast is it?
After warm-up, a stable reading takes less than 15 seconds per sample, with K, Na and Ca displayed together. With the AFHS autosampler up to 89 samples run unattended.
Who supports BWB in Israel?
SciLab Ltd in Haifa is the authorised BWB Technologies distributor: sales, installation, training, calibration standards, spare parts and service.
Request a quote
Flame photometer for soil, fertiliser and plant analysis
Tell us what you measure and in which samples. We'll reply within two business days with a recommended configuration and quotation.
- Free application advice before you buy
- Installation, training and service in Israel — in Hebrew, English or Russian
- Calibration standards and spare parts through SciLab
Phone +972 72-252-9002 · Mobile +972 50-812-3795
E-mail info@scilab.co.il