This is land that has been put into the Conservation Reserve Program (CPR) whereby the farmer is paid to keep this land idle so as to support crop prices.

这些土地已被纳入“保护区规划”（CPR），此处的农场主被人付钱，以便让这片土地保持闲置状态，目的是维护农产品价格。

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The other day, he says, he was looking at a field that a farmer had enrolled in the Conservation Reserve Program, or CRP.

NPR: Crop Cops Take to the Sky

Within the last month, USDA has opened the Conservation Reserve Program to emergency haying and grazing, has lowered the borrower interest rate for emergency loans, and has called on crop insurance companies to provide more flexibility to farmers.

WHITEHOUSE: The White House

So the state's Independent governor, Angus King, came up with a sensible suggestion: Cut hay from land enrolled in the federal Conservation Reserve Program (CRP) in the unaffected counties, and send it south, where it is immediately needed.

FORBES: Fact and Comment