Each year the District runs a nitrate test lab for producers that do pre-sidedress nitrate testing.  Nitrate testing is an excellent and inexpensive way of determining the available nitrogen (N) in your soil just before sidedressing and could reduce the amount of commercial nitrogen that needs to be applied.  Results for samples delivered by 3 p.m. Monday thru Thursday are generally available the following day by 1 p.m.  Results for samples delivered on Friday will be available on Monday.  The cost of analysis is $10.00 per sample.