Read More in The Sun Gro’er Issue 1/1 (2003)
So you’ve just used that brand new conductivity meter to measure the EC of your customer’s fertigation solution, and it doesn’t match the value that corresponds to the ppm N that the grower thinks they’ve been applying forever. What to do now? Since you’re already sure that the EC meter is properly calibrated, you better check that fertilizer injector! Fortunately, it’s not that hard to do.