| 控制灌溉条件下寒区水稻茎秆抗倒伏力学评价及成因分析 |
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| 引用本文： | 彭世彰,张正良,庞桂斌.控制灌溉条件下寒区水稻茎秆抗倒伏力学评价及成因分析[J].农业工程学报,2009,25(1):6-10. |
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| 作者姓名： | 彭世彰 张正良 庞桂斌 |
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| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,南京210098;河海大学水利水电工程学院,南京210098
2. 河海大学水文水资源与水利工程科学国家重点实验室,南京210098;河海大学节水研究所,南京210098 |
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| 基金项目： | 国家“863”计划项目（2006AA100202）；优秀博士学位论文作者专项基金（200546） |
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| 摘 要： | 为了评价控制灌溉处理与常规灌溉处理下水稻抗倒伏能力的差异，寻求有利于水稻茎秆抗倒伏的灌溉处理方式，以水稻茎秆为研究对象，研究了不同灌溉条件下水稻茎秆抗倒伏性能。引入茎秆系数，对水稻茎秆进行力学分析，比较了2种控制灌溉和常规灌溉3种水分处理下水稻茎秆抗倒伏能力的差异。结果表明，控制灌溉（KI、KII）处理下的水稻节间充实度高于常规灌溉（CK），KI、KII处理的水稻茎秆壁厚分别比CK高出0.15 mm和0.35 mm；控制灌溉处理下的水稻茎秆系数显然低于常规灌溉处理，大小顺序为：CK＞KI＞KII；临界力的大小依次为：KII＞KI＞CK，因此控制灌溉处理的水稻茎秆更具抗倒伏性。
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| 关 键 词： | 控制灌溉 力学性质 茎秆系数 抗倒伏 水稻茎秆 |
| 收稿时间： | 2007/11/26 0:00:00 |
| 修稿时间： | 2008/12/25 0:00:00 |
Mechanical evaluation and cause analysis of rice-stem lodging resistance under controlled irrigation in cold region |
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| Peng Shizhang,Zhang Zhengliang and Pang Guibin.Mechanical evaluation and cause analysis of rice-stem lodging resistance under controlled irrigation in cold region[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(1):6-10. |
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| Authors: | Peng Shizhang Zhang Zhengliang and Pang Guibin |
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| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;Hohai University;Nanjing 210098;China;2.College of Water Conservancy and Hydropower Engineering;3.Institute of Water-saving;China |
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| Abstract: | In order to evaluate the differences of rice-stem lodging resistance between controlled irrigation and regular irrigation,and seek irrigation treatment which was beneficial to rice stem lodging resistance,rice-stem was taken as the research object,and the performance of rice-stem lodging resistance was studied under different irrigation treatments. Stem coefficient was introduced,and the mechanical analysis of rice-stem was carried out.The differences of lodging resistance ability under two kinds of control... |
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| Keywords: | controlled irrigation mechanical properties stem coefficient lodging resistance rice stem |
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