| 保护性耕作和杂草管理对冬小麦农田土壤水分及有机碳的影响 |
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| 作者姓名： | Han HF Ning TY Li ZJ Tian SZ Wang Y Zhong WL Tian XX |
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| 作者单位： | 作物生物学国家重点实验室/山东省作物生物学重点实验室/山东农业大学农学院,山东泰安,271018 |
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| 基金项目： | "十一五"国家科技支撑计划项目，公益性行业(农业)科研专项，山东省自然科学基金，山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | 在秸秆全量还田的试验田中(从2004年起),于2008-2009年及2009-2010年冬小麦生育期间,研究了不同耕作措施(旋耕、耙耕、免耕、深松和常规耕作)和杂草管理对冬小麦田土壤水分及有机碳的影响.结果表明:在未除草条件下,免耕、深松的杂草总密度显著提高;而在除草条件下,杂草密度显著下降.小麦从拔节期到灌浆期0～60 cm土层水分含量呈明显波动变化,田间保留一定量的杂草可增加不同耕作方式0～20 cm的土壤水分含量,表现出一定的土壤水分保持效应.保留杂草仅提高了拔节期0～20 cm土层的土壤有机碳含量;而在抽穗期和灌浆期,0～20、20～40和40～60 cm土层有机碳含量均低于去除杂草处理.去除杂草条件下,深松显著提高了冬小麦籽粒产量;保留杂草条件下,旋耕的籽粒产量最高,常规耕作产量最低.
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| 关 键 词： | 保护性耕作 杂草 冬小麦 有机碳 土壤水分 |
Effects of conservation tillage and weed control on soil water and organic carbon contents in winter wheat field |
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| Han HF,Ning TY,Li ZJ,Tian SZ,Wang Y,Zhong WL,Tian XX.Effects of conservation tillage and weed control on soil water and organic carbon contents in winter wheat field[J].Chinese Journal of Applied Ecology,2011,22(5):1183-1188. |
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| Authors: | Han Hui-Fang Ning Tang-Yuan Li Zeng-Jia Tian Shen-Zhong Wang Yu Zhong Wei-Lei Tian Xin-Xin |
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| Institution: | HAN Hui-fang,NING Tang-yuan,LI Zeng-jia,TIAN Shen-zhong,WANG Yu,ZHONG Wei-lei,TIAN Xin-xin(State Key Laboratory of Crop Biology,Shandong Key Laboratory of Crop Biology,College of Agronomy,Shandong Agricultural University,Tai'an 271018,Shandong,China) |
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| Abstract: | Taking a long term(since 2004) straw-returning winter wheat field as the object,an investigation was made in the wheat growth seasons of 2008-2009 and 2009-2010 to study the effects of different tillage methods(rotary tillage,harrow tillage,no-tillage,subsoil tillage,and conventional tillage) and weed management on the soil water and organic carbon contents.No matter retaining or removing weeds,the weed density under subsoil tillage and no-tillage was much higher than that under rotary tillage,harrow tillag... |
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| Keywords: | conservation tillage weed winter wheat organic carbon soil water |
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