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Present Status and Historical Evolution of N, P, and K in Farmland Soils in Lin’an City and Fertilization Countermeasures
邬奇峰,阮弋飞,章林英,黄仨仨,应学兵,俞俊
Chinese Agricultural Science Bulletin . 2017, (23): 42 -50 .  DOI: 10.11924/j.issn.1000-6850.casb16070116