To solve/modify this issue I followed, in www.blogspot.com this steps:
- Login to your dash board.
- Click on Google + tab. There are three options available as explained in the image below.
- Automatically share after post (first option): This option enables or disable the auto sharing on Google+.
- Promote to share after posting (second option): If you don't want that your
post is automatically published then you can check this option. This
options allows you to share your blog post after it is published. A
popup box will open in which you can enter little info, hash-tags etc.
- Use Google + comments (Thirth option): This option enables the new Google + comment system into your blog. This is also a new feature provided by Google.