soil nitrogen kit
The Soil Nitrogen Kit is a low cost, easy to use, and accurate method to measure nitrogen, as nitrate, in soil or substrate.
The kit is ideally suited to growers and scientific researchers who need to know the concentration of nitrogen, as nitrate, that is available for plants.
Unlike other methods, the Soil Nitrogen Kit measures nitrate in soil solution which is the nitrate that is specifically available for plant nutrition and growth. Therefore, the Soil Nitrogen Kit provides the most accurate measurement of nitrate availability for plants.
- Soil EC monitoring
- Soil moisture sensors and meters
- Soil carbon/CO2 monitoring
- Soil pH meter
- Dendrometers for plant and fruit growth
how it works
A pore water sampler, that is provided with the Soil Nitrogen Kit, is installed in the soil or substrate to collect the solution.
Once enough solution has been collected, it is transferred to the Nitrate Photometer for measurement of nitrate concentration.
Following a few minutes for the measurement to take place inside of the Nitrate Photometer, a measurement value is displayed on the LCD screen. The measurement of nitrate concentration is given as mg/L.
field or laboratory measurements
The Nitrogen Photometer is powered via a 9V, D-Cell type battery which makes the Soil Nitrogen Kit very portable for field work.
Alternatively, soil or substrate solution samples can be carried back to the laboratory or workshop for bench-top measurements of nitrate concentration.
The Soil Nitrogen Kit is available in two separate nitrate measurement ranges: 0 to 30 mg/L and 0 to 100 mg/L.
For most applications, a nitrate measurement range of 0 to 30 mg/L, or 0 to 30 ppm, is suitable.
For applications where high nitrate concentrations are expected, then the 0 to 100 mg/L option is more suitable.
|Measurement Range||0 to 30 mg/L | 0 to 100 mg/L|
|Measurement Resolution||0.1 mg/L | 1 mg/L|
|Measurement Accuracy||±0.5 mg/L ±10% of reading | ±5 mg/L ±5% of reading|
|Nitrate Method||adaptation of the cadmium reduction method|
|Pore Water Sampler Type||Hydrophilic membrane composed of a blend of polyvinylpyrrolidine and polyethersulfone|
|Pore Size||0.12 – 0.18 µm|
|Collection Volume||10, 20 or 30 mL|
|Pore Water Sampler pH Range Tolerance||2 to 12|
|Pore Water Sampler Temperature Tolerance||1 to 90 °C|
|Pore Water Sampler Pressure Tolerance||-300 to +300 kPa|
|Photometer Temperature Tolerance||0 to 50 °C|
|Photometer Humidity Tolerance||0 to 95 % RH non-condensing|
|Photometer Power Supply||9V battery|
|Photometer Dimensions||193 x 104 x 69 mm|
|Photometer Weight||360 grams|
|Photometer Light Source||tungsten lamp|
|Photometer Light Detector||silicon photocell with narrow band interference filter @ 525 nm|
|Warranty||12 months on photometer only|