To add a soil test you will need to have added a soil test template using this guide.
Once a template has been created, select Fields and then Add a New Soil Test Result under Actions:
Input all required fields (*), click Add Field, select your field and click OK:
Next, select your soil test template from the drop down menu:
Once all details are filled in, click Save:
Soil Test results can also be entered after clicking on the field, under actions on the right:
Saved results can be found under the field's history, which can be found at the bottom of the field page: