| 秸秆覆盖对套作玉米苗期根系发育与生理特征的影响 |
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| 引用本文： | 邹聪明,王国鑫,胡小东,张云兰,薛兰兰,Shakeel Ahmad Anjum,王龙昌.秸秆覆盖对套作玉米苗期根系发育与生理特征的影响[J].中国生态农业学报,2010,18(3):496-500. |
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| 作者姓名： | 邹聪明 王国鑫 胡小东 张云兰 薛兰兰 Shakeel Ahmad Anjum 王龙昌 |
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| 作者单位： | 西南大学农学与生物科技学院,重庆,400716 |
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| 基金项目： | 国家“十一五”科技支撑计划项目(2006BAD29B08)、国家自然科学基金项目(30871474)、重庆市科技攻关计划项目(CSTC, 2008AB1001)和西南大学农业部生物技术与作物品质改良重点开放实验室基金项目 |
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| 摘 要： | 在西南地区"小麦/玉米/甘薯"三熟制套作模式下,以当地传统耕作为对照(T),秸秆覆盖(TS)、秸秆覆盖+腐熟剂(TSD)作为两种处理,连续两年田间试验研究了不同秸秆覆盖处理对育苗移栽玉米苗期的根系形态与生理特征的影响以及作用机理。研究结果表明:秸秆覆盖处理与对照相比增加了玉米苗期的根长、根表面积,显著增加了直径1.0～2.5mm范围内的根长,且秸秆覆盖+腐熟剂处理与秸秆覆盖处理间差异不大。2008年,与对照处理相比,秸秆覆盖、秸秆覆盖+腐熟剂处理苗期玉米根系活力分别提高19.12%、27.46%,根冠比分别提高36.72%、37.50%,根系生物量分别提高62.53%、69.42%;2009年,上述指标与对照处理相比分别提高17.86%、25.83%,31.54%、33.08%,65.69%、77.37%。同时秸秆覆盖处理有利于改善土壤水分与养分供应状况。可见,秸秆覆盖保护性耕作措施可通过改变农田环境促进套作玉米苗期根系发育,配合腐熟剂效果更佳。
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| 关 键 词： | 秸秆覆盖 间作玉米 苗期 根系发育 生理特征 |
| 收稿时间： | 2009/10/20 0:00:00 |
Effect of straw mulching on root development and physiological characteristics of intercropped maize at seedling stage |
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| ZOU Cong-Ming,WANG Guo-Xin,HU Xiao-Dong,ZHANG Yun-Lan,XUE Lan-Lan,Shakeel Ahmad Anjum and WANG Long-Chang.Effect of straw mulching on root development and physiological characteristics of intercropped maize at seedling stage[J].Chinese Journal of Eco-Agriculture,2010,18(3):496-500. |
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| Authors: | ZOU Cong-Ming WANG Guo-Xin HU Xiao-Dong ZHANG Yun-Lan XUE Lan-Lan Shakeel Ahmad Anjum and WANG Long-Chang |
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| Institution: | College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China;College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China |
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| Abstract: | Under the wheat/maize/sweet potato tri-crop intercropping system in the southwest China,we researched into the effects of different straw mulching treatments on root morphology,physiological characteristics of transplanted maize at seedling stage.Taking local traditional farming (T) as CK,the other two treatments were straw mulching (TS) and straw mulching plus decomposition catalysts (TSD).The entire experiment lasted for two years.Results show that straw mulching moderately increases root length and root ... |
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| Keywords: | Straw mulching Maize intercropping Seedling stage Root development Physiological characteristics |
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