Original OrganiCalc

Sign up for Original OrganiCalc

Logan Labs soil test interpretation made easy!  With Original OrganiCalc, you sample your soil and send it to Logan Labs (an additional soil test charge applies).  In about a week you will receive your soil test results from Logan Labs. Enter the test results in OrganiCalc.  OrganiCalc will calculate exactly the type and amount of each amendment you need in order to balance the soil in your planting area (see a sample report). Our calculation algorithm has been used in soils world wide with outstanding results.

With this subscription you will be granted unlimited access to OrganiCalc for one year.  Run as many soil tests as you like.

  • Easy – we take the guesswork out of balancing your soil minerals
  • Accurate – math and transposition errors are eliminated
  • Organic – we recommend only OMRI certified amendments

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