Here's a little reading log that I designed to help some of my students who didn't read very much or who often didn't do well on AR tests. I'm leaving it in Excel format so that you can make any changes you like before printing it.
The idea is that you somehow identify students who are not reading as they should, and those students take this sheet home on Monday to be returned on the following Monday. It has a place at the bottom for parent signatures.
This will *only work* if you follow up on it. You will need to call or at least email any parent whose child doesn't bring the sheet back on the following Monday. If you don't, this will not be effective, as they will just ignore it and never turn it in. I would also recommend having some sort of consequence attached to it if they do not bring it back on Monday, or if they have not recorded much reading on there.
I used to have a certain number of AR points that they were to make during every 2-week period, and those who didn't (especially those who were far below the goal) got this sheet to take home.