I am trying to implement FSL in my developer edition and I could not find the URL to install Managed packages for both Base and Lightning Package. Can someone help me on that?
Yes you need to ask Salesforce.I had the same issue with enabling field service in my client org.
Below is a link through which you can install the Field Service Lightning Managed Package.
There are also links to the documentation and a guide for migration to the new standard object model of FSL.