It depends on what you think the selling price is going to be for the produce, could make you a low cost/higher profit guy next year! It's the following year that is going to be a problem if it continues, and it all depends on how N intensive your crops are! And finally what will you do with the assets that are freed up from doing the farm work? Could have fallow with N fixing, peas and beans then all first wheat the following year?
I grow rye on 150kg N and wheat on 190kg N. Only applied P is on carrots and potatoes. Vari rate K and don't use masses of that due to keeping all straw on the farm. have been using as much chicken litter as I can get my hands on as well.