Business & farm

As stated above, you have 2 distinct businesses, so 2 separate Schedule Cs included with your Form 1040.  You use your SSN number for the SP and you can and should use your EIN for the SMLLC.  There is a place to enter that in TurboTax when you are setting up your different lines of work (Schedule Cs).  

Your LLC should give you a 1099 for work done.  The LLC claims an expense on its Schedule C and the income is reported on the SP's Schedule C.