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 04-17-2002, 18:55 Post: 37556
Jim on Timberridge



Join Date: Jul 2003
Location: La Crosse WI
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 Ever use urea

Notes from Penn State Univ:
"A dry material in granularly or prilled form, urea-N rapidly hydrolyzes to NH4+. Used for direct application,in mixed fertilizers,and in liquid nitrogen. N at application is present as urea-N. Within 1 day after application, about 66% of urea-N is hydrolyzed to ammonia-N; all within 1 week.
When not incorporated, significant N loss by volatilization can occur until approximately 0.5 inch of rain has fallen. Not recommended for starter use.
Broadcast (incorporated) or sidedress."

So basically my understanding of urea is: organic compound
that is the principal end product of nitrogen metabolism in most mammals ... -- does this mean we're talking about crystallized urine ????

Anyway, my guess is that urea is too "hot" for most grass fertilizing applications. Commercial grass fertilizers even the cheap junk will dissolve over a period of time to prevent burning the grass. I've burned enough dead spots in my fields by excess application (i.e. spills) to understand that grass can't take a heavy infusion of nitrogen.
jim






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 04-19-2002, 17:59 Post: 37652
Jim on Timberridge



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 Ever use urea

Mark, i was attempting humor in my comment about crystallized urine...
jim






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