Formolene. AKA Coron, 28-0-0 or urea triazone. When used in a complete fertilizer blend consisting of multiple sources of N, K, P if needed and micronutrients, this is good stuff. I use low rates of 28-0-0 to get extended life out of an AS blend application.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738