I have wages from another job Ag force through Fowler packing how can I add it to my 2016 taxes

Use Form 1040X to add or correct information on  an already filed tax return.
You will have to :
1) wait until your return is processed and - if you expect a refund - you get your refund.
2) return to TurboTAX to "start an Amended Return" for 2016.

Under income it tells you to add another job and the adjusted gross income from your w4.

yes but my return is already being processed