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| Rain water can contain dust from the roof it came from. That dust can deactivate glyphosate that is the first chronological job for AMS. AMS needs to tie up the dust and dirt ions in the rain water.
AMS has a second job, in that the N makes some weeds like velvet leaf accept the spray better and so ingest the glyphosate better for a better kill.
So rain water needs AMS just as much as other sources.
Gerald J.
Edited by Gerald J. 7/2/2014 10:01
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