I totally agree with Maxie; ask a thoughtful question at the end of your articles. Don’t just ask a generic question such as, “What other tips can you offer?” — Instead, present readers with hypothetical and ethical scenarios around the subject, then ask what they would do to resolve it. Ask how they overcame an obstacle and encourage their answers to be detailed.

Similarly, ask equally thoughtful questions throughout the article. While you don’t want to overwhelm readers with too many questions, asking 1–2 throughout your content can’t hurt if it’s brilliantly related to the subject.

Reply to every comment you receive, as it encourages those readers to keep coming back. They will feel grateful and acknowledged.

Post comments on related blogs. Those blog owners will happily come to your blog and do the same, and some of their readers will follow suit.

Keep your content digestible. This means breaking down paragraphs into 2–3 sentences (tops). Use multimedia to keep it attractive, subheadings, and other things that are visually pleasant. This encourage readers to stick around instead of leaving your article half way through.
Don’t cover overly mundane or obvious things, as most readers will be put off and won’t bother commenting as a result.

Keep practicing all of the above and give yourself some time. You won’t see results immediately, but keep doing it and don’t give up after 2 weeks.