You need to compare analyses AND amounts per specific area. If cost is a factor you'd also need to calculate and compare cost per lb. of nutrient too when looking at alternatives. In the study I mentioned they were using analyses of 15N–3.9P–10K and 16N–3.5P–10K. Some daylily hybridizers mention using a ratio (not analysis) of something like 3-1-2 which is fairly close to these but I don't recall their suggesting how much per square foot or whatever. Those amounts would also depend on one's own specific soil test. I've seen a few soil tests where people were having problems with daylilies and the nutrient levels were way too high, so one needs to be careful not to overdo it.
I'm not a big fan of high P (middle number) fertilizers. I think they're often used unnecessarily. The nutrient most likely to be deficient if any are is nitrogen. If you're looking to try and limit rust then make sure the plants are also getting adequate K (potassium). Milorganite is around 5-2-0 according to their website. A fertilizer alfalfa pellet I checked just now, I assume they vary somewhat, had an analysis of 3-0-2. Edited to add, as Maurice said any essential nutrient that is in insufficient supply will limit the performance of plants regardless of how much there is of everything else. One problem that crops up often with daylilies is the soil pH being too high resulting in micronutrient deficiency causing interveinal chlorosis.
