长期定位施肥对土壤有机质、不同形态氮含量及作物产量的影响
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刘学彤 1( ), 郑春莲 1, 曹薇 2, 党红凯 1, 曹彩云 1,3, 李晓爽 4, 李科江 1,3, 马俊永 1,3( )
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Effects of Long-Term Located Fertilization on Soil Organic Matter, Nitrogen Forms and Crop Yields
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Liu Xuetong 1( ), Zheng Chunlian 1, Cao Wei 2, Dang Hongkai 1, Cao Caiyun 1,3, Li Xiaoshuang 4, Li Kejiang 1,3, Ma Junyong 1,3( )
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图1. 不同处理土壤有机质含量 不同小写字母表示差异显著(P<0.05),下同
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Fig.1. Soil organic matter contents in different treatments Different lowercase letters indicate significant difference (P<0.05), the same below
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