| 短期免耕对黑土有机碳、全氮和速效养分的影响 |
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| 引用本文： | 李文凤,梁爱珍,张晓平,时秀焕,申艳,范如芹,杨学明.短期免耕对黑土有机碳、全氮和速效养分的影响[J].土壤通报,2011(3):664-669. |
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| 作者姓名： | 李文凤 梁爱珍 张晓平 时秀焕 申艳 范如芹 杨学明 |
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| 作者单位： | 中国科学院东北地理与农业生态研究所;中国科学院研究生院;加拿大农业与农业食品部Harrow研究中心; |
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| 基金项目： | 国家自然科学基金项目(40801071); “十一五”科技支撑项目(2009BADB3B01); 中科院东北地理与农业生态研究所青年博士基金项目(O8H2041)资助 |
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| 摘 要： | 对中层黑土上连续监测了6年的玉米免耕和秋翻两种耕作处理下的耕层土壤有机碳、全氮和速效氮、磷、钾进行了分析。结果表明:耕作处理对土壤养分的影响主要表现在不同的土壤深度上,免耕造成了土壤有机碳和全氮的分层化,即表层0~5 cm有机碳和全氮含量明显高于亚表层,而秋翻土壤有机碳和全氮分布则比较均匀。免耕处理的速效养分均表现为表层与亚表层存在明显差异。免耕处理下有机碳、全氮和速效氮、磷、钾在土壤表层发生明显富集。
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| 关 键 词： | 免耕 有机碳 全氮 速效养分 黑土 |
Short-term Effects of No-tillage on Soil Organic C and N and Available Nutrients in Black Soil of Northeast China |
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| LI Wen-feng ,LIANG Ai-zhen ,ZHANG Xiao-ping ,SHEN Yan ,FAN Ru-qin ,YANG Xue-ming.Short-term Effects of No-tillage on Soil Organic C and N and Available Nutrients in Black Soil of Northeast China[J].Chinese Journal of Soil Science,2011(3):664-669. |
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| Authors: | LI Wen-feng LIANG Ai-zhen ZHANG Xiao-ping SHEN Yan FAN Ru-qin YANG Xue-ming |
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| Institution: | LI Wen-feng 1,2,LIANG Ai-zhen 1,ZHANG Xiao-ping 1,SHEN Yan 1,FAN Ru-qin 1,YANG Xue-ming 3(1.Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130012,China,2.Graduate School of the Chinese Academy of Sciences,Beijing 100049 China,3.Harrow Research Centre,Agriculture & Agri-Food Canada,Ontario,N0R 1G0,Canada) |
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| Abstract: | The tillage experiment trials were established in Dehui County,Jilin Province in 2001.The effects of no-tillage(NT) and moldboard plow(MP) with the crop of corn on the content of soil organic carbon(SOC),total nitrogen(TN),available nitrogen(N),phosphorus(P) and potassium(K) in plow layer of black soil in Northeast China were studied.The results showed that the significant differences in SOC and TN occurred at depths between NT and MP.NT tended to stratify SOC and TN in the plow layer.Aavailable N,available... |
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| Keywords: | No tillage Soil organic carbon Total nitrogen Available nutrients Black soil |
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