I have 4 N Rates (0, 140, 168, 224) and three N sources (CRU-60, CRU-75, U)
Control or 0 N rate has no source attached to it as no fertilizer gets applied
When I run the main and interaction effects, the control does not get analyzed. Additionally, when I look at my anova, am I to expect to see a model with a df of 9 (3 N rate*3 N source + control)? If so, I am not getting that. I uploaded an example of how I set up the data. Not sure what to put under the N source column for 0 N rate. My response variable is SorTC. Ultimately I would like to run a tukey analysis where the control can be evaluated against the fertilized treatments. Please advice. Thank you!
