There are a number of different factors used to determine rates for leasing a pasture, including the type of grass, the availability of water and the condition of the fences surrounding the land, according to Iowa State University. Each spring, a survey is conducted to gather information about rates by state and region.
Landowners use the results of this survey as part of the calculation to determine a lease rate. With livestock, rental agreements are sometimes reached based on a price per head for each month. For pastures that are used to grow hay, a series of computations are made to factor in the market value, the yield of hay and quality of the product based on the growing conditions, as cited by the Ohio State University.