Whenever you write a blog post or article, you should follow this formula is you want it to rank high for a particular keyword in search engines.
1) Target only one key phrase as the primary target. You can have a secondary phrase as well, but know which one is the main one.
2) Use your key phrase in the title of the post, including the meta data title and at least once in the meta description. WordPress may automatically do this for you if you have WordPress configured well.
3) Use the key phrase once per 100 words in the article.
4) Write the article to be 300 to 500 words long.
5) Use the key phrase in the first and last sentence of the article, when possible.
6) Use some specific words related to the key phrase. Use words from the key phrase in a different order when possible.
7) Do not be overly aggressive – too much actually makes the article rank lower.
This is the formula for success when it comes to writing a good SEO oriented blog post.