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Research on Principal Component Analysis and Quality Evaluation of Organic Fertilizer Commonly Used in Tobacco
张艳艳 苑举民 石屹 梁晓芳 武珂峰 张本强
Chinese Agricultural Science Bulletin . 2012, (18): 154 -159 .  DOI: 10.11924/j.issn.1000-6850.2012-0251