If you receive a cash payment from a farmer as rental income, the IRS says to enter the income and expenses associated with this income on schedule E. Farm Rental Income (form 4835) will result in the same taxation but is specifically for share crop income and expenses only.
Here's a copy of form 4835 to view, note the heading;
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f4835.pdf">https://www.irs.gov/pub/irs-pdf/f4835.pdf</a>
