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Spray solution pH buffering question
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Posted 3/13/2019 14:26 (#7378008)
Subject: Spray solution pH buffering question

South Georgia
I asked a question a week or so ago about mixing dry KCl to spray on cotton. I got some good answers, and have done a little more research. I found some research (referenced in the previous thread) suggesting that there is some yield benefit to buffering the spray solution down to around 4.0 pH. When I jar test KCl, Urea, and my water, I end up around 8-8.2 pH. So... what do I need to use to buffer it? Doing some research, I come up with suggestions of vinegar (I'm thinking that would be too weak, and require way too much to be effective), muriatic acid from the builder's supply store, or sulphuric acid from the parts store. Not real interested in a high profit margin name brand product from an ag chemical supplier if I can do what I need to do with run of the mill chemicals.

Who else has ever been down this road? Tips and suggestions?

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