when people calm down and think, they will know why 1 URO is not worth 1 metric tonne of UREA. for it too be worth 1 metric tonne of UREA there has to be 1,000,000 tones of it which is the max coins.
Just a simple Google search for worlds total urea production will tell u that
Heres a little screenshot for u
World Urea Supply/Demand Balance (million metric tonnes urea)
Supply 2012 2013 2014 2015 2016
Capacity 192.4 202.8 207.4 224.3 226.1
Total Supply* 165.9 173.7 180.3 189.7 195.0
Demand
Fertilizer Demand 143.3 146.2 149.4 152.7 154.4
Non-fertilizer Demand 19.0 19.7 20.7 21.1 21.7
Total Demand 162.3 165.9 170.0 173.8 176.1
Potential Balance 3.5 7.9 10.3 15.9 19.0 % of
Supply 2% 5% 6% 8% 10%
So uro wont even cater to 1% of that