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农学学报
二十八年来杭州市桐庐县耕地有机质变化及其改良
谢国雄 倪中应
Changes of Organic Matter in Cropland in Tonglu County of Hangzhou over 28 Years and Its Improved Management
农学学报 . 2013, (9): 17 -21 .  DOI: 10.11924/j.issn.2095-4050.2013-xb0401