Be careful setting up the ammonia controller. I'm not totally breifed on what was done for initial calibration, I'm guessing that the grower requested that the controller be programmed to put on Ammonia as Lbs of N.

Somewhere in the GS2 product setup there was a nutrient content setting that the grower had set to 82%.

Even though all values and totals showed up for using the proper lbs, he was actually using ~20% too much ammonia.

That is when we found the setting for the product. If the user has calibrated the unit for Lbs of N, then the product N concentration needs to be set to 100.