I saw something on the internet that said DEF fluid is a cheap source of nitrogen for lawns. I am just curious if anyone has ever considered this and would it be cost-effective at any point on hay or pasture? Since DEF fluid is essentially just 32-33% urea, how cost-effective would it be to use that as a nitrogen-only fertilizer? You can buy a 55-gallon drum of DEF for $275-300. So, at 32%, The density is 3.5 pounds per gallon.
Of course Urea prices have really dropped during the summer and it is nowhere near where it was last year per ton. So this would not be cost-effective at this point, but when urea was hovering around $900/ ton it might have been. This question is more my curiosity than anything else.
Of course Urea prices have really dropped during the summer and it is nowhere near where it was last year per ton. So this would not be cost-effective at this point, but when urea was hovering around $900/ ton it might have been. This question is more my curiosity than anything else.