3Clark. Ralph B. Growth of forages on acid soil amended with flue gas desulfurization by-products [J].Fuel, 1997,76(8):771-775.
4Clark R 15. Growth of forages legumes and grasses in acidic soil amended with flue gas desulfurization products [J]. Communications in Soil Science and Plant Analysis, 2003, 34(1/2): 157-180.
5Wendell R R. High calcium flue gas desulfurization products reduce aluminum toxicity in an Appalachian soil [J]. Journal of Environment Quality, Nov-Dec, 1996, 25(6): 1401-1410.
6Stout W L. Use of flue gas desulfurization (FGD) by-product gypsum on alfalfa [J]. Communications in Soil Science and Plant Analysis, 1996, 27(9/10): 2419-2432.
7Crews J T. Liming acid forcst soils with flue gas desulfurizatitan by-product: growth of Northern red oak and leachate water quality [J]. ENVIRONMENTAL POLLUTION. 1998,103(1):55-61.
8Chen L. Flue Gas I)esulfurization By-Products Additions to Acid Soil: Alfalfa Productivily and Environment Quality [J].Environ Pollut, 2001,114(2): 161(8).