1NELSON F J, Schertz L P. Provisions of the Federal Agriculture Improvement and Reform Act of 1996[J].Agriculture Information Bulletin, 1996 (729): 164.
2The Economic Research Service (ERS),the U.S. Department of Agriculture. The 2002 Farm Bill: Provisions and Economic Implications [EB/OL]. http://www. ers. usda. gov/Features/FarmBill/.
3MEYER L, MacDonald S. Cotton: Background and Issues for Farm Legislation[EB/OL]. http ://www. ers.usda. gov/publications/CWS-0601-O1/.