Yes, if you have rental income from property located in NE, then you will file an NE nonresident state income tax return to report this income. (No NE filing is required if you have overall rental losses from this property.)
You will want to work on your nonresident NE state income tax return first. You will then take a tax credit from your nonresident NE state income taxes on your resident CA state income tax return. (Please note that you will only get a tax credit for your NE state income taxes up to the amount of CA state income taxes that would have been paid if the income was earned in CA). The credit for taxes paid to another state section will be at the end of your residence state's interview process.
Just follow the TurboTax guide when working on your states (remembering to do your nonresident state return first) and TurboTax will do all the calculations and credits to your resident states return
Here is additional information about filing in multiple states (select "see more answer" to view the entire attachment)
https://ttlc.intuit.com/replies/3300797