Business & farm

It still shouldn't go on Schedule C.  It stays on page 2 of Schedule E.

If the Partnership Agreement requires to you pay for those expenses, it is deductible as Unreimbursed Partnership Expenses.  When you enter your K-1, the program will ask you about that.

If you have expenses incurred before the Partnership, or you have a business that is completely separate from the Partnership, that income and expenses go on Schedule C.