| Rice yield and water use as affected by soil management practices |
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| 作者姓名： | WANG Xiao-Ying XIE Hong-Tu LIANG Wen-Ju WEN Da-Zhong |
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| 作者单位： | [1]KeyLaboratoryofTerrestrialEcologicalProcess,InstituteofAppliedEcolo9y,ChineseAcademyofSciences,Shenyang110016（China） [2]GraduateSchooloftheChineseAcademyofSciences,Beijing100039（China） |
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| 基金项目： | *1Project supported by the Foundation of Shenyang Experimental Station of Ecology, Chinese Academy of Sciences (No.SYZ0203). |
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| 摘 要： | A field experiment was conducted at the Shenyang Experimental Station of Ecology, Chinese Academy of Sciences,to study the effects of soil management practices on water use and rice (Oryza sativa L.) yield in an axtuic brown soil during 2001 and 2002. A completely random experimental design with three replications was employed, having four soil management practices as treatments, namely: an undisturbed plow layer (CK), a thin plastic film (TN), a thick plastic film (TI) and subsoil compacting (CP). Results indicated no significant differences among all treatments for rice biomass and grain yields. Also, water consumption was about the same for treatments TN and CK, however the treatments TI and CP were much lower with more than 45% and 40% of the irrigation water in the treatments TI and CP, respectively,saved each year compared to CK. Therefore, water use efficiency was higher in the treatments TI and CP. These results will provide a scientific basis for the water-saving rice cultivation.
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| 关 键 词： | 土壤水分损失总量 浸透性 土壤管理 水利用率 稻 |
Rice yield and water use as affected by soil management practices |
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| WANG Xiao-Ying,XIE Hong-Tu,LIANG Wen-Ju,WEN Da-Zhong.Rice yield and water use as affected by soil management practices[J].Pedosphere,2004,14(3):331-337. |
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| Authors: | WANG Xiao-Ying XIE Hong-Tu LIANG Wen-Ju and WEN Da-Zhong |
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| Institution: | Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China). E-mail: wangxy0917@yahoo.com.cn;Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China);Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China). E-mail: wangxy0917@yahoo.com.cn;Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China);Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China). E-mail: wangxy0917@yahoo.com.cn;Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016 (China). E-mail: wangxy0917@yahoo.com.cn |
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| Abstract: | A field experiment was conducted at the Shenyang Experimental Station of Ecology, Chinese Academy of Sciences,to study the effects of soil management practices on water use and rice (Oryza sativa L.) yield in an axtuic brown soil during 2001 and 2002. A completely random experimental design with three replications was employed, having four soil management practices as treatments, namely: an undisturbed plow layer (CK), a thin plastic film (TN), a thick plastic film (TI) and subsoil compacting (CP). Results indicated no significant differences among all treatments for rice biomass and grain yields. Also, water consumption was about the same for treatments TN and CK, however the treatments TI and CP were much lower with more than 45% and 40% of the irrigation water in the treatments TI and CP, respectively,saved each year compared to CK. Therefore, water use efficiency was higher in the treatments TI and CP. These results will provide a scientific basis for the water-saving rice cultivation. |
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| Keywords: | evapotranspiration percolation rice soil management water use efficiency |
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