No harm but it is easier on your wallet to find a place that sells high percentage fertilizer. Fertilizer is mostly filler. If you pay $15 for a 50 lb bag of 10-10-10 you are getting 5 lb N, 5 lb P and 5 lb K and 35 lb of filler in each bag. 46-0-0 on the other hand will have 23 lb of nitrogen in each bag and normally cost the same as a bag of 10-10-10. 18-46-0 will have 9 N and 23 p and do what you need with no K. Not sure if you can get your hands on higher percentages but remember fertilizer is mostly filler.