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Soil Test Interpretation Software

SMART! is an innovative software tool that helps you interpret your soil test report.


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Interpreting soil test results with SMART! Fertilizer software:

    • SMART! interprets for the entire variety of extraction methods used by laboratories, so it
              can easily interpret any soil test report.
    • Converts between the different units
    • Takes into consideration multiple soil parameters, such as soil texture,  EC, pH, CEC, %
              Organic matter, SAR, Soil temperature and more.
    • Interprets for any extraction method
    • Optional cusomtized importing of multiple soil test reports. Suitable for consultants and
              consultancy companies who have to interpret hundreds of soil test reports at once.
    • SMART! designs fertilizer programs for any crop, based on the soil test results and their



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Using Your Soil Test Results -A step-by-step guide

Soil test results affect fertilizer recommendations. The Soil Test module allows you to enter your soil test

Results. SMART!’s algorithm will analyze the results and will base the fertilizer recommendations on this



  1. If you already saved your soil tests using the ‘Soil Test Interpretation’ module, click the ‘Add Test’ button and select the soil test you saved.
  2. If not, you can enter the soil test results directly in this screen.
  3. Click the ‘Next‘ button.


Soil lab - determines the set of extraction methods (analytical methods used by the laboratory to

determine nutrient levels in the soil) and the interpretation of each element level, using the specified

extraction method. 

The default SMART! Soil Lab includes most of the available extraction methods. 

Texture - select the soil texture.

Layer Depth - soil depth that represents the depth from which the sample was taken.

CEC - Cation Exchange Capacity of the soil in meq/100g units.

Bulk Density - bulk density of the soil in ton/m3.

OM – percent Organic Matter.

EC - measured Electrical Conductivity in ds/m.

pH - measured soil pH.

Average Temp. - average ambient temperature.

SAR - Sodium Absorption Ratio. This is a calculated value. When Ca, Mg and Na are measured in

the soil solution you can click the calculator button next to the SAR field. SAR will be calculated.



Entering nutrient soil test results



For each nutrient, select its ionic form, as indicated by your laboratory. Use the arrow next to the nutrient symbol, to open a drop box with available nutrient forms.
  1. For each nutrient, from the Extraction Method drop-box select the extraction method used by your laboratory for the soil analysis.
  2. In the Test Results row, enter the test results for each nutrient. 

    IMPORTANTbefore entering a value, make sure that the unit in the dropbox next to the Test Result row, corresponds to the unit indicated by your laboratory. 

    Some units that do not appear in the software, are equivalent to existing units. 

Common examples:

ppm = mg/kg, mg/l
cmol (+)/kg = meq/100g

Note that changing units will convert all values in the row to the selected unit.

SMART! instantly interprets the test results, as you enter them.


NOTE: In case that you cannot find the extraction method used by your laboratory in the Extraction Methods drop-down menu, or if the interpretation range and rating do not coincide with the information you have, you can easily add this information to your account. Contact Us and we will show you how.




if your laboratory indicated a test level of 1.5 mmol/L of K2O in a saturated soil paste, then:

In the Elements row, click the arrow next to K. A drop-box opens. and change K to K2O.

In the Extraction Method row, click the arrow next to extraction method under K2O and select Saturated Paste.

In the Test Results row, from the drop-box, select mmol/L.

Under K2O, Saturated Paste, enter the test result (1.5).


 Click here to reach the full "Getting Started Guide"