There are a few things that you can do to encourage people to write on your blog. First, make sure that your blog is well designed and easy to use. Next, make sure that your blog is easy to find and provides useful information. Finally, make sure that you provide interesting and valuable content for your readers to write about.
In addition, you can offer incentives for writing, such as giveaways or free products. Overall, promoting writing on your blog will help you attract more readers and contributors who will provide valuable content.