If production is greater than that which can be sold at a specified percentage of the parity price, the government agrees to purchase the excess, generally through purchase agreements with farmers or nonrecourse loan programs.

• 如果产量超过了能够以一定比例的平价来销售的数额，政府就同意购进多余部分，一般都是通过与农民签订购买协议或制定非追索性贷款计划来进行。