| 秸秆还田对小麦玉米轮作田土壤有机碳质量的影响 |
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| 引用本文： | 高翔,沈阿林,寇长林,马政华,王文亮,郭战玲.秸秆还田对小麦玉米轮作田土壤有机碳质量的影响[J].河南农业科学,2012,41(9):63-67. |
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| 作者姓名： | 高翔 沈阿林 寇长林 马政华 王文亮 郭战玲 |
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| 作者单位： | 1. 河南农业大学资源与环境学院,河南郑州,450002
2. 河南省农业科学院植物营养与资源环境研究所,河南郑州,450002 |
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| 基金项目： | 国家小麦产业技术体系(CARS-3);农业部公益性行业(农业)科研专项(200803030,201103003) |
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| 摘 要： | 利用小麦-玉米轮条件下不同秸秆还田方式进行定位试验,对不同秸秆还田方式下土壤有机碳和活性有机碳含量进行了6a11季的连续监测,结果表明:单施化肥和秸秆还田配施化肥均能提高土壤有机碳含量;3种还田方式均能显著提高活性有机碳和碳库管理指数,表现为玉米秸秆还田>两季秸秆还田>小麦秸秆还田;3种秸秆还田处理的土壤有机碳增长速率为玉米秸秆还田>两季秸秆还田>小麦秸秆还田。小麦季玉米秸秆还田对有机碳活性提升效果优于两季秸秆还田和玉米季小麦秸秆还田。
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| 关 键 词： | 连续耕作 秸秆还田 小麦-玉米轮作 土壤有机碳 活性有机碳 |
Effects of Straw Application on Soil Organic Carbon and Active Organic Carbon in Wheat-corn Rotation System |
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| GAO Xiang
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SHEN A-lin
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KOU Chang-lin
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MA Zheng-Hua
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WANG Wen-liang
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GUO Zhan-ling.Effects of Straw Application on Soil Organic Carbon and Active Organic Carbon in Wheat-corn Rotation System[J].Journal of Henan Agricultural Sciences,2012,41(9):63-67. |
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| Authors: | GAO Xiang SHEN A-lin KOU Chang-lin MA Zheng-Hua WANG Wen-liang GUO Zhan-ling |
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| Institution: | 1.College of Resources and Environmental Sciences,Henan Agricultural University,Zhengzhou 450002,China; 2.Institute of Plant Nutrition,Resources and Environmental Sciences,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China) |
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| Abstract: | A 6-year field experiment was carried out to study the effects of corn stover or/and wheat straw incorporated with chemical fertilizers on organic carbon and active organic carbon in soil in a wheat and corn rotation system.The results showed that the treatments of chemical fertilizer applied only and chemical fertilizer applied with straw returning increased the active organic carbon proportion in soil.All three methods of straw returning significantly improved the quantity of labile organic carbon(LOC) and(carbon management index)(CMI),which was in the follow order:corn straw application>corn and wheat straw application>wheat straw application.And for the total organic carbon(TOC) increase speed was corn straw applied>corn stover and wheat straw applied>wheat straw applied.There was higher organic carbon activity in the treatment of returning corn straw in wheat season than the treatment of both corn stover and wheat straw applied in two seasons or the treatment of wheat straw applied in corn season. |
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| Keywords: | continuous cultivation straw returned wheat-corn rotation system soil organic carbon active organic carbon |
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