| 连续覆膜旱作稻氮、磷、钾养分分布特征探讨 |
| |
| 引用本文： | 路兴花,吴良欢,庞林江,李永山,张玲. 连续覆膜旱作稻氮、磷、钾养分分布特征探讨[J]. 土壤通报, 2010, 0(1) |
| |
| 作者姓名： | 路兴花 吴良欢 庞林江 李永山 张玲 |
| |
| 作者单位： | 浙江大学环境与资源学院环境修复与生态健康教育部重点实验室;浙江林学院农业与食品科学学院;山西省农业科学院棉花研究所; |
| |
| 基金项目： | 国家自然科学基金项目(30571082); “十一五”国家科技支撑项目(2008BADA4B03)资助 |
| |
| 摘 要： | 通过长期田间定位试验对自2001年起连续覆膜旱作稻N、P、K养分吸收分布特征及秸秆还田对其影响作了研究。结果表明,水稻各器官中籽粒氮磷浓度最高,而钾在茎部最高;氮磷含量主要分布在籽粒,钾主要分布在叶和茎部;秸秆还田提高了植株体内总氮和钾吸收量,而磷稍有降低,具有降低籽粒中氮磷钾的浓度趋势,且它们在籽粒中分配率都有所下降。随着氮肥用量增加,覆膜旱作稻籽粒氮浓度和氮吸收量、以及磷钾吸收量均有所增加,而磷和钾浓度则稍有下降趋势;氮、磷和钾在籽粒中的分配率降低。与常规水作和裸地旱作相比,覆膜旱作一定程度提高了水稻各器官氮浓度以及根茎叶中磷浓度,但籽粒中磷浓度以及各器官中钾浓度差异甚微。覆膜旱作提高了植株总氮、磷和钾含量,籽粒中氮占植株总氮含量比率稍有提高,磷和钾在籽粒中的分配率则稍低于常规水作。
|
| 关 键 词： | 水稻 覆膜旱作 养分分布 |
Distribution of N,P and K in Rice Plant under a Long-term Located Plastic Film Mulching Cultivation |
| |
| LU Xing-hua ,WU Liang-huan ,PANG Lin-jiang ,LI Yong-shan ,ZANG Ling. Distribution of N,P and K in Rice Plant under a Long-term Located Plastic Film Mulching Cultivation[J]. Chinese Journal of Soil Science, 2010, 0(1) |
| |
| Authors: | LU Xing-hua WU Liang-huan PANG Lin-jiang LI Yong-shan ZANG Ling |
| |
| Affiliation: | LU Xing-hua 1,WU Liang-huan 1,PANG Lin-jiang 2,LI Yong-shan 3,ZANG Ling 1 (1.Ministry of Education Key Lab of Environmental Remediation , Ecosystem Health,College of Environmental , Resource Sciences,Zhejiang University,Zhejiang Hangzhou 310029,China,2.School of agriculture , food,Zhejiang Forest University,Zhejiang Linan,311300,3.Cotton Research Institute,Shanxi Academy of Agricultural Sciences,Shanxi Yuncheng 044000,China) |
| |
| Abstract: | A lone-term located field experiment with plastic film mulching cultivation (PM) and straw incorporation (SI) was carried out from 2001,to explore N,P and K distribution under those conditions.The results showed that N and P concentrations were the highest in rice grain and K in shoot of all organs.N and P concentrations mostly lay in grain and K in leaf and shoot.Compared with non-straw incorporation (NSI),SI tend to increase total N and K absorbed content in rice plant,but to decrease P absorption lightly... |
| |
| Keywords: | Rice (Oryza stativa L) Plastic film mulching cultivation (PM) Nutrition distribution |
| 本文献已被 CNKI 等数据库收录！ |
|
