Fig. 1.

Rainfall, air temperature, and N2O emissions from urea (UR), incorporated in a Red Latosol, with or without nitrification inhibitors (dicyandiamide [DCD] and 3,4-dimethylpyrazole phosphate [DMPP]) or polymer sulfur–coated urea (PSCU) applied to ratoon cane, cycle 2011/2012.

 


Fig. 2.

Rainfall, air temperature, and N2O emissions from urea (UR), incorporated in a Red Latosol, with or without nitrification inhibitors (dicyandiamide [DCD] and 3,4-dimethylpyrazole phosphate [DMPP]) or polymer sulfur–coated urea (PSCU) applied to ratoon cane, cycle 2012/2013. R indicates inhibitor reapplied in same plot of previous cycle.