LaMotte DCL-20 Colorimeter - Manual (Page 20)

NITRATE NITROGEN CONCENTRATION CHART
%T RANGE POUNDS PER ACRE
93-100% Low 0-9.0 lbs/acre
79-92% Medium 11-29 lbs/acre
65-78% Medium High 33-51 lbs/acre
43-64% High 53-100 lbs/acre
0-42% Very High Over 100 lbs/acre
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