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棉田施用磷石膏试验王荣华山东省陵县农业引用外次项目办公室２５３５００左余宝中国农科院土壤肥料研究所利用石膏改良碱化土国内外已有报道，但用磷石膏改良碱化土的报道甚少。碱化土的碱化度较高，而磷素含量低，依据磷石膏中含有土壤调理剂硫酸钙、有效磷和锰、锌、铜...
Cotton Phosphogypsum Test Wang Ronghua Ling County, Shandong Province Agriculture Reference Project Office 253500 Zuo Yu Bao Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences Gypsum used to improve alkalized soil at home and abroad have been reported, but the use of phosphogypsum to improve the alkalinity of the soil reported Very few. Alkalization of soil alkalinity is higher, while the low phosphorus content, based on phosphogypsum containing soil conditioner calcium sulfate, phosphorus and manganese, zinc, copper ...