Download our guide of calculations and conversions to help you better understand your test results.
Our guide on collecting samples has everything you need to know about collecting each different type of sample.
Why Should You Soil Test?
How to Take a Soil Sample
How to Take a Water Sample
The Art of Balancing Soil Nutrients - Bill McKibben
The Farm as Ecosystem - Jerry Brunetti
The Intelligent Gardener - Steve Soloman with Erica Reinheimer
The Ideal Soil - Michael Astera
Beyond Organic - Growing for Maximum Nutrition and Flavor - Jana Bogs, PhD
The Regenerative Grower's Guide to Garden Amendments - by Nigel Palmer
SuperGro of Iowa, LLC
Big Red Worms
Rock Dust Local
Sadler’s Natural Solutions
Seven Springs Farm
Crop Services International