不同耕作模式下水稻产量与器官多要素响应的比较研究
S181; 认识和理解水稻产量影响要素是实现水稻高产稳产的关键.选取冬水田、垄作免耕和常规水旱轮作3种处理,采用相关分析、主成分分析与主成分多元线性回归3种方法对水稻产量与成熟期根、茎、叶、籽粒碳同位素组成,根系特征以及养分的响应关系进行比较与综合分析.结果表明不同耕作模式下垄作免耕的水稻产量最高,根、茎、叶、籽粒的碳同位素组成与水稻产量有极显著的负相关关系(P<0.01);主成分分析提取的6个主成分累计贡献率超过80％;主成分多元线性回归模型能够解释冬水田、垄作免耕和常规水旱轮作水稻产量67％、73％和97％的变异;与常规水旱轮作相比,冬水田和垄作免耕水稻产量与碳同位素组成及磷的关系更...
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| Published in | 农业工程学报 Vol. 36; no. 11; pp. 119 - 128 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西南大学资源环境学院,重庆,400715%河海大学水利水电学院,南京,210098
01.06.2020
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2020.11.014 |
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| Abstract | S181; 认识和理解水稻产量影响要素是实现水稻高产稳产的关键.选取冬水田、垄作免耕和常规水旱轮作3种处理,采用相关分析、主成分分析与主成分多元线性回归3种方法对水稻产量与成熟期根、茎、叶、籽粒碳同位素组成,根系特征以及养分的响应关系进行比较与综合分析.结果表明不同耕作模式下垄作免耕的水稻产量最高,根、茎、叶、籽粒的碳同位素组成与水稻产量有极显著的负相关关系(P<0.01);主成分分析提取的6个主成分累计贡献率超过80％;主成分多元线性回归模型能够解释冬水田、垄作免耕和常规水旱轮作水稻产量67％、73％和97％的变异;与常规水旱轮作相比,冬水田和垄作免耕水稻产量与碳同位素组成及磷的关系更密切.该研究表明,垄作免耕具有较好的推广应用价值. |
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| AbstractList | S181; 认识和理解水稻产量影响要素是实现水稻高产稳产的关键.选取冬水田、垄作免耕和常规水旱轮作3种处理,采用相关分析、主成分分析与主成分多元线性回归3种方法对水稻产量与成熟期根、茎、叶、籽粒碳同位素组成,根系特征以及养分的响应关系进行比较与综合分析.结果表明不同耕作模式下垄作免耕的水稻产量最高,根、茎、叶、籽粒的碳同位素组成与水稻产量有极显著的负相关关系(P<0.01);主成分分析提取的6个主成分累计贡献率超过80％;主成分多元线性回归模型能够解释冬水田、垄作免耕和常规水旱轮作水稻产量67％、73％和97％的变异;与常规水旱轮作相比,冬水田和垄作免耕水稻产量与碳同位素组成及磷的关系更密切.该研究表明,垄作免耕具有较好的推广应用价值. |
| Author | 马黎华 蒋先军 王振昌 万琪慧 |
| AuthorAffiliation | 西南大学资源环境学院,重庆,400715%河海大学水利水电学院,南京,210098 |
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| Author_FL | Ma Lihua Wang Zhenchang Wan Qihui Jiang Xianjun |
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| Author_xml | – sequence: 1 fullname: 马黎华 – sequence: 2 fullname: 万琪慧 – sequence: 3 fullname: 王振昌 – sequence: 4 fullname: 蒋先军 |
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| DocumentTitle_FL | Comparative study on yield and organ multi-factor responses of rice under different tillage modes |
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| Keywords | 耕作 主成分分析 产量 水稻 同位素 |
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| Title | 不同耕作模式下水稻产量与器官多要素响应的比较研究 |
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