I agree with blumsden.....Most people probably have plenty of P in their fields if they've been steadily using 13-13-13 or 17-17-17.....it holds in the soil a lot longer than the other nutrients like N & K. If you have good nutrient holding capacity in your soil then your K will not bottom out and will likely just need topping off with some 0-0-60 depending on what you grew during summer months. The N part is not a set in stone number you have to use and you don't need a soil test at all really to tell you what to add. Its basically more N for more yield....how much do you want or need.

I've been tinkering with my N applications and adding all of it upfront is definitely not the way I'd go. Just about any field planted in late Sept or early Oct will be N deficient by January when we really want our fields to shine. If it's feasible for someone to do so I like the idea of adding 50 lbs/ac of 34-0-0 at planting.....and then 100 lb/ac again about 6 weeks later bout Thanksgiving....and if someone really wanted to try to push as much growth as they could then I would add another 50 lbs just after Christmas. These dates could be adjusted to what you think is optimal but a more spread out N application I believe would be better. You could probably even up the amounts of N if someone wanted. I think what I recommended would be about middle of the road.

I've been planting plots for over 30 years. A lot I learned early on was trial and error due to there was as not as much info then. Now people don't have to waste time and money. The best thing I found in the early days was lime. Now everyone knows that.

The over seeding was something I found effective years ago. But I seed even heavier: 200lbs/acre. It works for me. Heavy application of N during the Dec lull(usually around Dec 10). NEVER have I burned any with N. The over seeing goes for clover also. For me, AWP and rape are useless even though I do use a little rape because it's cheap. Deer LOVE AWP and rape, but when grazed down, it's through. Usually gone by middle of Nov. here. Wheat and clover keeps on coming back.

Now the fertilizer: Follow soil sample. If nothing has been done to the soil I probably would split the applications of N. The initial fertilizer with no test would be 17-17-17 at 2oolbs/acre. Then 150lbs/N about 6 weeks after first growth and then again about 6 weeks after that.