[See the comments below this answer. This rental income may not be income from self employment that is eligible to support a SEP-IRA contribution. This answer applies to partnership income that is considered to be income from self-employment.]
The amount contributed to your SEP-IRA goes on Schedule K-1 (Form 1065) box 13 with code R. Since this is reported as a self-employment retirement deduction on your personal tax return, it does not appear as a deduction (or anywhere other than box 13 of the K-1) on the partnership's tax return (Form 1065).
When you enter the box 13 code R amount onto TurboTax's K-1 entry form, TurboTax will ask you the breakdown of the amount. Indicate that the entire amount was a SEP-IRA contribution. TurboTax will verify that it is no more than the maximum permitted and will place the amount on Form 1040 line 28.
