High Tunnel Webinar on Soil Health
 

If you are growing in the soil in your high tunnel, this might be very helpful:

[URL="http://www.conservationwebinars.net/webinars/soil-health-in-high-tunnel-production"]http://www.conservationwebinars.net/webinars/soil-health-in-high-tunnel-production[/URL]

Salts will build up over time depending on how you manage your soil fertility in a high tunnel. Plus other good info.