Figure 11-4. Soybean yield in roll-crimped rye mulches at test sites in Goldsboro, Kinston, and Plymouth, North Carolina, in 2008 and 2009. Treatments consisted of rolled rye mulch with no additional weed control measures versus a weed-free check that consisted of conventional tillage with S-metoloachlor PRE and imazethpyr POST.
Chart showing yields using two different treatments.

Adapted from Smith et al. 2011.