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Cattle Boards
Grasses, Pastures & Hay
Johnsongrass/Prussic acid
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<blockquote data-quote="danl" data-source="post: 1170026" data-attributes="member: 229"><p>If you want to know for sure about Prussic acid, buy cyantesmo strips. Get a Ziploc bag, pick Johnson grass from more than one spot, crunch it up add a small amount of water, add a short strip of cyantesmo paper. Put in the sun or a very warm spot, if Prussic acid </p><p>cyanide is present the paper will turn bright blue. Btw put all the above in the bag...</p><p></p><p>There is a good paper written about in on the university of Kentucky website. </p><p>Also you need to watch for nitrates, if it was fertilized,went through a dry spell then started growing.</p><p>I got my strips on Amazon from a chemical company.</p><p>Last fall we had a long discussion on here about it, if I was smart I could link to it.</p><p>Or you could search my old posts, I don't have that many so shouldn't be too hard.</p></blockquote><p></p>
[QUOTE="danl, post: 1170026, member: 229"] If you want to know for sure about Prussic acid, buy cyantesmo strips. Get a Ziploc bag, pick Johnson grass from more than one spot, crunch it up add a small amount of water, add a short strip of cyantesmo paper. Put in the sun or a very warm spot, if Prussic acid cyanide is present the paper will turn bright blue. Btw put all the above in the bag... There is a good paper written about in on the university of Kentucky website. Also you need to watch for nitrates, if it was fertilized,went through a dry spell then started growing. I got my strips on Amazon from a chemical company. Last fall we had a long discussion on here about it, if I was smart I could link to it. Or you could search my old posts, I don't have that many so shouldn't be too hard. [/QUOTE]
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