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WC MN | A lot of fertilizer gets impregnated here. Personally, I will only impregnate for the beans. My FIL's corn got hurt bad from Triple Flex impregnated this year. He plants about 2" or so and I think that was just plain too shallow when you are working in the herbicide with a FC. If you could harrow it in or be certain you were only working it in the top 2" or so, I think you will be fine but be sure that if you get plenty of rain it has the potential to move. He was not happy. They did a couple of fields by spraying and a couple by impregnating and that was the only difference. Injury was only found in the impregnated fields. They do have a warning about using triple flex on "high rates of urea". That may have been the case as all his N is derived from urea.
I spray all mine on post with 4" corn. I never have injury going that route. Guys that put it on pre here can get issues with it leafing out underground in the clay knobs and heavy ground. I pre'd one field last year with the sprayer and 50-66 had about 20% leafing out underground. It did NOT like it.
I am sure you will get many stories with varying success and failure. | |
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Impregnating sure start or balance flex with urea
