LAGRANGE, Ind. — When I was a young boy, I saw something odd when I entered the silo equipment room on our farm just days after the silo was filled. As I opened the door, there was a brown cloud of gas hovering just above the floor. I did not know it at the time, but that brown gas could have killed me. The brown gas was nitrogen tetroxide. It is a byproduct of the fermentation process in a silo. Even the plastic silage bags popular now on mod…
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