Learn about the effects of different nitrogen rates on corn and more! 6 Rates of Nitrogen applied in three replicates on a corn field at the Green County Farm. The rates are zero, 40, 80, 120, 160 and 200 units of nitrogen. This will be a chance for the public to see the corn plants at the various rates before it's harvested. There's a mini cover crop plot on site to look at various species and talk about the benefits…