What I don't understand about fertilization is.....Do I have to do the same routine every year when it comes to fertilization?

This year I had to add 900 #'s of 0-46-0
and 300 #'s of 0-0-62 per plot

This is getting expensive......If I don't have to do this every year.....no big deal but if it has to be done every year.....I don't think it is economical.....