| 冬前不同管理措施对土壤温度和冬小麦早期生长的影响 |
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| 引用本文： | 刘秀位,苗文芳,王艳哲,孙宏勇,邵立威,陈素英,张喜英.冬前不同管理措施对土壤温度和冬小麦早期生长的影响[J].中国生态农业学报,2012,20(9):1135-1141. |
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| 作者姓名： | 刘秀位 苗文芳 王艳哲 孙宏勇 邵立威 陈素英 张喜英 |
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| 作者单位： | 1. 中国科学院农业水资源重点实验室 河北省节水农业重点实验室 中国科学院遗传与发育生物学研究所农业资源研究中心 石家庄050022;中国科学院研究生院 北京 100049
2. 中国科学院农业水资源重点实验室 河北省节水农业重点实验室 中国科学院遗传与发育生物学研究所农业资源研究中心 石家庄050022 |
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| 基金项目： | 国家高技术研究发展计划(863计划)课题(2011AA100502-4)、国家现代农业产业技术体系(CARS-3-2)和中国科学院创新方向性项目(KZCX2-EW-415)资助 |
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| 摘 要： | 华北平原冬小麦/夏玉米一年两作下的少免耕和秸秆还田在减少耕作投入和降低农田无效蒸发方面作用显著,但也存在一些不利影响。本研究通过详细测定镇压、冬灌、秸秆覆盖等措施对土壤温度和冬小麦早期生长的影响,明确了少免耕和秸秆还田等措施的实施效果,为农业生产提供指导。结果表明,秸秆覆盖后土壤表层和5 cm深度最低地温越冬前、越冬期间和返青后比不覆盖分别高2.37℃、3.18℃、1.68℃和0.57℃、1.28℃、0.34℃,最高温度分别低2.68℃、4.40℃、4.82℃和0.54℃、0.75℃、1.85℃;冬灌后至冬小麦返青期表层土壤和5 cm处土壤平均最低温度比不冬灌分别高0.88℃和0.93℃,返青至拔节期两个层次的最高温度相差5.35℃和5.57℃;镇压与不镇压温度差异不明显。与对照相比,越冬前后秸秆覆盖和冬灌后冬小麦的茎蘖数和生物量都较低,尤其是在返青期,秸秆覆盖和冬灌下的茎蘖数和生物量比对照分别低29.8%、27.7%和5.2%、21.2%。秸秆覆盖和冬灌在冬季可降低最低温度的降幅,但春季不利于地温回升,有延缓冬小麦生长发育的可能。
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| 关 键 词： | 秸秆覆盖 冬灌 镇压 土壤温度 冬小麦 苗期生长 |
| 收稿时间： | 2/8/2012 12:00:00 AM |
| 修稿时间： | 6/8/2012 12:00:00 AM |
Effects of different pre-winter management practices on soiltemperature and winter wheat seedling growth |
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| LIU Xiu-Wei,MIAO Wen-Fang,WANG Yan-Zhe,SUN Hong-Yong,SHAO Li-Wei,CHEN Su-Ying and ZHANG Xi-Ying.Effects of different pre-winter management practices on soiltemperature and winter wheat seedling growth[J].Chinese Journal of Eco-Agriculture,2012,20(9):1135-1141. |
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| Authors: | LIU Xiu-Wei MIAO Wen-Fang WANG Yan-Zhe SUN Hong-Yong SHAO Li-Wei CHEN Su-Ying and ZHANG Xi-Ying |
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| Institution: | 1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu;1. Key Laboratory of Agricultural Resources, Chinese Academy of Sciences; Hebei Key Laboratory of Water-saving Agriculture; Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhu |
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| Abstract: | |
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| Keywords: | Straw mulching Winter irrigation Soil compaction Soil temperature Winter wheat Seedling growth |
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