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I was feeding today, and since we had all the rain this fall, I've been feeding out of the hay fields as I wasn't able to haul anything home. I realized that I was running through alot of frost killed alfalfa, all standing about 6 inches tall. Since a couple of my hay fields border my pastures, it would be a snap to toss a fence around the hay fields, and get some use out of that stuff that was too short to cut again. With the average amount of snowfall we get up here, I really don't need any kind of snow trap, so it wouldn't kill me to see the alfalfa grazed right down before the snows came. Even if I did need a trap, it would be cheap to roll out with the blade and blade a couple traps throughout the winter.

Just curious if anyone has had any success fall grazing frost killed alfalfa? I know alfalfa is susceptible to nitrate poisoning after frost, so how long after a frost do I need to wait to put the critters out on it? How heavy a frost do I need before I need to worry about nitrate poisoning? We've had several hard frosts now, but we still have some green undergrowth that I would _guess_ is still susceptible to nitrates.

Rod
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