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| In your case it’s cheaper than an RO equip as you're using 1.2 pounds/100 gall of water, but I think you have your brain wrapped between calculated value by formula and what label said (8.5 to 17 lbs).
Ask to your lab or Purdue people you have already contacted if it is possible to analyze with a water sample how much AMS should be added to eliminated Ca+K+Na+Mg+Fe, my thought is perhaps they can to 5 samples add 1, 5, 9, 13, 17 pounds of AMS, or the arrange you like, and analyze if all cations were eliminated, if they said it’s no possible I couldn’t imagine how North Dakota University Researchers could define the formula.
Edit: or only 1 sample with what the calculation gives you, 1.2 pounds/100 gall.
That is only to verify how much AMS is necessary to avoid glyphosate reactions with cations, and the additional pounds in the label are related to how leaf wax is penetrate, and this is what Purdue avoid to go deeper.
Edited by Roger416 3/9/2013 15:42
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Amount of AMS in spray water
